svn merge ^/branches/released

3 files changed, 4866 insertions, 0 deletions

diff --git a/libX11/specs/XIM/Makefile.am b/libX11/specs/XIM/Makefile.am
new file mode 100644
index 000000000..c76a3f720
--- /dev/null
+++ b/libX11/specs/XIM/Makefile.am
@@ -0,0 +1,33 @@
+#
+# Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
+#
+# Permission to use, copy, modify, distribute, and sell this software and its
+# documentation for any purpose is hereby granted without fee, provided that
+# the above copyright notice appear in all copies and that both that
+# copyright notice and this permission notice appear in supporting
+# documentation.
+#
+# The above copyright notice and this permission notice shall be included
+# in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+# IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR
+# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+# OTHER DEALINGS IN THE SOFTWARE.
+#
+# Except as contained in this notice, the name of the copyright holders shall
+# not be used in advertising or otherwise to promote the sale, use or
+# other dealings in this Software without prior written authorization
+# from the copyright holders.
+#
+
+# Based on xc/doc/specs/XIM/Makefile from X11R6.9
+
+doc_sources = xim.ms
+
+include $(top_srcdir)/specs/troffrules.in
+
+
diff --git a/libX11/specs/XIM/Makefile.in b/libX11/specs/XIM/Makefile.in
new file mode 100644
index 000000000..73392a119
--- /dev/null
+++ b/libX11/specs/XIM/Makefile.in
@@ -0,0 +1,554 @@
+# Makefile.in generated by automake 1.11 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005, 2006, 2007, 2008, 2009  Free Software Foundation,
+# Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#
+# Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
+#
+# Permission to use, copy, modify, distribute, and sell this software and its
+# documentation for any purpose is hereby granted without fee, provided that
+# the above copyright notice appear in all copies and that both that
+# copyright notice and this permission notice appear in supporting
+# documentation.
+#
+# The above copyright notice and this permission notice shall be included
+# in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+# IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR
+# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+# OTHER DEALINGS IN THE SOFTWARE.
+#
+# Except as contained in this notice, the name of the copyright holders shall
+# not be used in advertising or otherwise to promote the sale, use or
+# other dealings in this Software without prior written authorization
+# from the copyright holders.
+#
+
+# Based on xc/doc/specs/XIM/Makefile from X11R6.9
+
+#
+# Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
+#
+# Permission to use, copy, modify, distribute, and sell this software and its
+# documentation for any purpose is hereby granted without fee, provided that
+# the above copyright notice appear in all copies and that both that
+# copyright notice and this permission notice appear in supporting
+# documentation.
+#
+# The above copyright notice and this permission notice shall be included
+# in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+# IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR
+# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+# OTHER DEALINGS IN THE SOFTWARE.
+#
+# Except as contained in this notice, the name of the copyright holders shall
+# not be used in advertising or otherwise to promote the sale, use or
+# other dealings in this Software without prior written authorization
+# from the copyright holders.
+#
+
+# Based on xc/doc/specs/*/Makefile from X11R6.9
+
+VPATH = @srcdir@
+pkgdatadir = $(datadir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkglibexecdir = $(libexecdir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
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+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in \
+	$(top_srcdir)/specs/troffrules.in
+subdir = specs/XIM
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/acinclude.m4 \
+	$(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+	$(ACLOCAL_M4)
+mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = $(top_builddir)/src/config.h \
+	$(top_builddir)/include/X11/XlibConf.h
+CONFIG_CLEAN_FILES =
+CONFIG_CLEAN_VPATH_FILES =
+AM_V_GEN = $(am__v_GEN_$(V))
+am__v_GEN_ = $(am__v_GEN_$(AM_DEFAULT_VERBOSITY))
+am__v_GEN_0 = @echo "  GEN   " $@;
+AM_V_at = $(am__v_at_$(V))
+am__v_at_ = $(am__v_at_$(AM_DEFAULT_VERBOSITY))
+am__v_at_0 = @
+SOURCES =
+DIST_SOURCES =
+am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
+am__vpath_adj = case $$p in \
+    $(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \
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+  esac;
+am__strip_dir = f=`echo $$p | sed -e 's|^.*/||'`;
+am__install_max = 40
+am__nobase_strip_setup = \
+  srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*|]/\\\\&/g'`
+am__nobase_strip = \
+  for p in $$list; do echo "$$p"; done | sed -e "s|$$srcdirstrip/||"
+am__nobase_list = $(am__nobase_strip_setup); \
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+XPROTO_LIBS = @XPROTO_LIBS@
+XTHREADLIB = @XTHREADLIB@
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+XTMALLOC_ZERO_CFLAGS = @XTMALLOC_ZERO_CFLAGS@
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+abs_srcdir = @abs_srcdir@
+abs_top_builddir = @abs_top_builddir@
+abs_top_srcdir = @abs_top_srcdir@
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+ac_ct_F77 = @ac_ct_F77@
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+am__leading_dot = @am__leading_dot@
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+build_vendor = @build_vendor@
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+docdir = @docdir@
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+localstatedir = @localstatedir@
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+pdfdir = @pdfdir@
+prefix = @prefix@
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+psdir = @psdir@
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+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+doc_sources = xim.ms
+EXTRA_DIST = $(doc_sources)
+@HAVE_PS2PDF_FALSE@printable_format = .ps
+@HAVE_PS2PDF_TRUE@printable_format = .pdf
+@BUILD_SPECS_TRUE@doc_DATA = $(doc_sources:.ms=.txt) \
+@BUILD_SPECS_TRUE@		$(doc_sources:.ms=$(printable_format)) \
+@BUILD_SPECS_TRUE@		$(doc_sources:.ms=.html)
+
+@BUILD_SPECS_TRUE@CLEANFILES = $(doc_DATA)
+@BUILD_SPECS_TRUE@MOSTLYCLEANFILES = index.*
+
+# Pass version string as a troff string for substitution
+@BUILD_SPECS_TRUE@GROFF_DEFS = -dxV="$(PACKAGE_STRING)"
+
+# -e to run through eqn, -t to run through tbl
+@BUILD_SPECS_TRUE@GROFF_FLAGS = -e -t -ms $(GROFF_DEFS) $(top_srcdir)/specs/macros.t
+@BUILD_SPECS_TRUE@SUFFIXES = .ms .ps .txt .html .pdf
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .ms .ps .txt .html .pdf
+$(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am $(top_srcdir)/specs/troffrules.in $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign specs/XIM/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign specs/XIM/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure: @MAINTAINER_MODE_TRUE@ $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4): @MAINTAINER_MODE_TRUE@ $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+install-docDATA: $(doc_DATA)
+	@$(NORMAL_INSTALL)
+	test -z "$(docdir)" || $(MKDIR_P) "$(DESTDIR)$(docdir)"
+	@list='$(doc_DATA)'; test -n "$(docdir)" || list=; \
+	for p in $$list; do \
+	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
+	  echo "$$d$$p"; \
+	done | $(am__base_list) | \
+	while read files; do \
+	  echo " $(INSTALL_DATA) $$files '$(DESTDIR)$(docdir)'"; \
+	  $(INSTALL_DATA) $$files "$(DESTDIR)$(docdir)" || exit $$?; \
+	done
+
+uninstall-docDATA:
+	@$(NORMAL_UNINSTALL)
+	@list='$(doc_DATA)'; test -n "$(docdir)" || list=; \
+	files=`for p in $$list; do echo $$p; done | sed -e 's|^.*/||'`; \
+	test -n "$$files" || exit 0; \
+	echo " ( cd '$(DESTDIR)$(docdir)' && rm -f" $$files ")"; \
+	cd "$(DESTDIR)$(docdir)" && rm -f $$files
+tags: TAGS
+TAGS:
+
+ctags: CTAGS
+CTAGS:
+
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(DATA)
+installdirs:
+	for dir in "$(DESTDIR)$(docdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	$(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	  install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	  `test -z '$(STRIP)' || \
+	    echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
+	-test -z "$(MOSTLYCLEANFILES)" || rm -f $(MOSTLYCLEANFILES)
+
+clean-generic:
+	-test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool mostlyclean-am
+
+distclean: distclean-am
+	-rm -f Makefile
+distclean-am: clean-am distclean-generic
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
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+html-am:
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+info: info-am
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+info-am:
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+install-data-am: install-docDATA
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+install-dvi: install-dvi-am
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+install-dvi-am:
+
+install-exec-am:
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+install-html: install-html-am
+
+install-html-am:
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+install-info: install-info-am
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+install-info-am:
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+install-man:
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+install-pdf: install-pdf-am
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+install-ps: install-ps-am
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+install-ps-am:
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+installcheck-am:
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+maintainer-clean: maintainer-clean-am
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
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+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-generic mostlyclean-libtool
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+pdf: pdf-am
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+pdf-am:
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+ps: ps-am
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+ps-am:
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+uninstall-am: uninstall-docDATA
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+.MAKE: install-am install-strip
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+.PHONY: all all-am check check-am clean clean-generic clean-libtool \
+	distclean distclean-generic distclean-libtool distdir dvi \
+	dvi-am html html-am info info-am install install-am \
+	install-data install-data-am install-docDATA install-dvi \
+	install-dvi-am install-exec install-exec-am install-html \
+	install-html-am install-info install-info-am install-man \
+	install-pdf install-pdf-am install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+	uninstall uninstall-am uninstall-docDATA
+
+
+@BUILD_SPECS_TRUE@.ms.ps:
+@BUILD_SPECS_TRUE@	-$(AM_V_GEN) $(GROFF) -Tps $(GROFF_FLAGS) $< 2> index.$@.raw > $@
+@BUILD_SPECS_TRUE@	@if grep '^[^1-9.]' index.$@.raw | grep -v warning; then exit 1; \
+@BUILD_SPECS_TRUE@	 else test $$? -le 1; fi
+
+@BUILD_SPECS_TRUE@.ms.txt:
+@BUILD_SPECS_TRUE@	$(AM_V_GEN) env GROFF_NO_SGR=TRUE $(GROFF) -Tutf8 $(GROFF_FLAGS) \
+@BUILD_SPECS_TRUE@	 $< 2> index.$@.raw > $@
+
+@BUILD_SPECS_TRUE@.ms.html:
+@BUILD_SPECS_TRUE@	$(AM_V_GEN) $(GROFF) -Thtml $(GROFF_FLAGS) $< 2> index.$@.raw > $@
+
+@BUILD_SPECS_TRUE@.ps.pdf:
+@BUILD_SPECS_TRUE@	$(AM_V_GEN) $(PS2PDF) $< $@
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/libX11/specs/XIM/xim.ms b/libX11/specs/XIM/xim.ms
new file mode 100644
index 000000000..e41e9bcab
--- /dev/null
+++ b/libX11/specs/XIM/xim.ms
@@ -0,0 +1,4279 @@
+.\" $Xorg: xim.ms,v 1.3 2000/08/17 19:42:21 cpqbld Exp $
+.\" To print this out, type tbl macros.t ThisFile | troff -ms
+.\" $XFree86: xc/doc/specs/XIM/xim.ms,v 1.2 2000/12/14 17:48:58 dawes Exp $
+.EH ''''
+.OH ''''
+.EF ''''
+.OF ''''
+.ps 11
+.nr PS 11
+\&
+.sp 8
+.TL
+\s+3\fBThe Input Method Protocol\fP\s-3
+.sp
+\fBVersion 1.0\fP
+.sp
+\fBX Consortium Standard\fP
+.sp
+\fBX Version 11, Release 7\fP
+.sp
+\fB\*(xV\fP
+.sp 3
+.AU
+Masahiko Narita
+.AI
+FUJITSU Limited.
+.AU
+Hideki Hiura
+.AI
+SunSoft, Inc.
+.sp 3
+.AB
+.LP
+This specifies a protocol between IM library and IM (Input Method) 
+Server for internationalized text input, which is independent from  
+any specific language, any specific input method and the transport layer 
+used in communication between the IM library and the IM Server, and uses 
+a client-server model. 
+This protocol allows user to use his/her favorite input method for all 
+applications within the stand-alone distributed environment.
+.AE
+.ce 0
+.br
+\&
+.LP
+.ps 11
+.nr PS 11
+.bp
+\&
+.ps 9
+.nr PS 9
+.sp 8
+.LP
+.DS C
+X Window System is a trademark of X Consortium, Inc.
+.sp
+Copyright \(co 1993, 1994 by X Consortium, Inc.
+.DE
+.sp 2
+.LP
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+.LP
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+.LP
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+.LP
+Except as contained in this notice, the name of the X Consortium shall
+not be used in advertising or otherwise to promote the sale, use or
+other dealings in this Software without prior written authorization
+from the X Consortium.
+.sp 3
+.DS C
+Copyright \(co 1993, 1994 by FUJITSU LIMITED
+.sp
+Copyright \(co 1993, 1994 by Sun Microsystems, Inc.
+.DE
+.sp 2
+.LP 
+Permission to use, copy, modify, and distribute this documentation 
+for any purpose and without fee is hereby granted, provided 
+that the above copyright notice and this permission 
+notice appear in all copies.
+Fujitsu and Sun Microsystems make no representations 
+about the suitability for any purpose of the information in this document. 
+This documentation is provided as is without express or implied warranty. 
+.ps 11
+.nr PS 11
+.bp 1
+.EH '\fBX Input Method Protocol\fP''\fB\*(xV\fP'
+.OH '\fBX Input Method Protocol\fP''\fB\*(xV\fP'
+.EF ''\fB % \fP''
+.OF ''\fB % \fP''
+.NH 1
+Introduction
+.XS
+\*(SN Introduction
+.XE
+.NH 2
+Scope
+.XS
+\*(SN Scope
+.XE
+.LP
+The internationalization in the
+X Window System
+Version 11, Release 5 (X11R5) provides a common API which application 
+developers can use to create portable internationalized programs and to 
+adapt them to the requirements of different native languages, local customs,
+and character string encodings (this is called ``localization'').  
+As one of its internationalization mechanisms X11R5 has defined a functional 
+interface for internationalized text input, called XIM (X Input Method).  
+.LP
+When a client-server model is used with an IM (Input Method) implementation,
+a protocol must be established between the client and the server. 
+However, the protocol used to interface Input Method Servers (IM Servers) 
+with the Input Method libraries (IM libraries) to which applications are 
+linked was not addressed in X11R5. 
+This led application developers to depend on vendor-specific input methods, 
+decreased the user's choice of available input methods, and made it more 
+difficult for developers to create portable applications. This paper describes 
+the Input Method Protocol developed for X11R6 to resolve the above problems 
+and to address the requirements of existing and future input methods.
+.LP
+The Input Method Protocol is independent from the transport layer used in 
+communication between the IM library and the IM Server. 
+Thus, the input method protocol can be built on any inter-process 
+communication mechanism, such as TCP/IP or the X protocol.
+.LP
+In addition, the protocol provides for future extensions such as differing 
+input model types.
+.LP
+.NH 2
+Background
+.XS
+\*(SN Background
+.XE
+.LP
+Text input is much more simple for some languages than
+others.  English, for instance, uses an alphabet of a manageable size,
+and input consists of pressing the corresponding key on a keyboard,
+perhaps in combination with a shift key for capital letters or special
+characters.
+.LP
+Some languages have larger alphabets, or modifiers such as accents,
+which require the addition of special key combinations in order to enter
+text.  These input methods may require ``dead-keys'' or ``compose-keys''
+which, when followed by different combinations of key strokes,
+generate different characters.
+.LP
+Text input for ideographic languages is much less simple.  In these
+languages, characters represent actual objects rather than phonetic 
+sounds used in pronouncing a word, and the number of characters
+in these languages may continue to grow.  In Japanese, for instance, most
+text input methods involve entering characters in a phonetic alphabet,
+after which the input method searches a dictionary for possible
+ideographic equivalents (of which there may be many).  The input method then
+presents the candidate characters for the user to choose from.
+.LP
+In Japanese, either Kana (phonetic symbols) or Roman letters are
+typed and then a region is selected for conversion to Kanji. Several
+Kanji characters may have the same phonetic representation. If that
+is the case with the string entered, a menu of characters is presented
+and the user must choose the appropriate one. If no choice is necessary
+or a preference has been established, the input method does the
+substitution directly.
+.LP
+These complicated input methods must present state information (Status Area), 
+text entry and edit space (Preedit Area), and menu/choice presentations 
+(Auxiliary Area).  Much of the protocol between the IM library and the IM
+Server involves managing these IM areas.
+Because of the size and complexity of these input methods, and because
+of how widely they vary from one language or locale to another, they are
+usually implemented as separate processes which can serve many client
+processes on the same computer or network.
+.LP
+.NH 2
+Input Method Styles
+.XS
+\*(SN Input Method Styles
+.XE
+.LP
+X11 internationalization support includes the following four types of
+input method:
+.RS
+.IP "- on-the-spot:" 20
+The client application is directed by the IM Server to display all
+pre-edit data at the site of text insertion.  The client registers
+callbacks invoked by the input method during pre-editing.
+.IP "- off-the-spot:" 20
+The client application provides display windows for the pre-edit data
+to the input method which displays into them directly.
+.IP "- over-the-spot:" 20
+The input method displays pre-edit data in a window which it brings up
+directly over the text insertion position.
+.IP "- root-window:" 20
+The input method displays all pre-edit data in a separate area of the
+screen in a window specific to the input method.
+.RE
+.LP
+Client applications must choose from the available input methods
+supported by the IM Server and provide the display areas and callbacks
+required by the input method.
+.LP
+.NH 1
+Architecture
+.XS
+\*(SN Architecture
+.XE
+.NH 2
+Implementation Model
+.XS
+\*(SN Implementation Model
+.XE
+.LP
+Within the X Window System environment, the following two typical
+architectural models can be used as an input method's implementation
+model.
+.RS
+.IP "- Client/Server model:" 20
+A separate process, the IM Server, processes input and handles preediting, 
+converting, and committing.  The IM library within the application, acting 
+as client to the IM Server, simply receives the committed string from the 
+IM Server.
+.IP "- Library model:" 20
+All input is handled by the IM library within the application.  The
+event process is closed within the IM library and a separate IM Server
+process may not be required.
+.RE
+.LP
+Most languages which need complex preediting, such as Asian languages,
+are implemented using the Client/Server IM model.  Other languages
+which need only dead key or compose key processing, such as European
+languages, are implemented using the Library model.
+.LP
+In this paper, we discuss mainly the Client/Server IM model and the
+protocol used in communication between the IM library (client) and the IM 
+Server.
+.LP
+.NH 2
+Structure of IM
+.XS
+\*(SN Structure of IM
+.XE
+.LP
+When the client connects or disconnects to the IM Server, an open or close
+operation occurs between the client and the IM Server.
+.LP
+The IM can be specified at the time of XOpenIM() by setting the locale 
+of the client and a locale modifier. Since the IM remembers 
+the locale at the time of creation XOpenIM() can be called
+multiple times (with the 
+setting for the locale and the locale modifier changed) to support 
+multiple languages.
+.LP
+In addition, the supported IM type can be obtained using XGetIMValues().
+.LP
+The client usually holds multiple input (text) fields. Xlib provides a
+value type called the ``Input Context'' (IC) to manage each individual 
+input field.  An IC can be created by specifying XIM using XCreateIC(), 
+and it can be destroyed using XDestroyIC().
+.LP
+The IC can specify the type of IM which is supported by XIM for each 
+input field, so each input field can handle a different type of IM.
+.LP
+Most importantly information such as the committed string sent from
+the IM Server to the client, is exchanged based on each IC.
+.LP
+Since each IC corresponds to an input field, the focused input field 
+should be announced to the IM Server using XSetICFocus(). (XUnsetICFocus() 
+can also be used to change the focus.)
+.LP
+.NH 2
+Event Handling Model
+.XS
+\*(SN Event Handling Model
+.XE
+.LP
+Existing input methods support either the FrontEnd method, the BackEnd method, 
+or both.  This protocol specifically supports the BackEnd method as 
+the default method, but also supports the FrontEnd method as an optional 
+IM Server extension.
+.LP
+The difference between the FrontEnd and BackEnd methods is in how
+events are delivered to the IM Server.  (Fig. 1)
+.LP
+.NH 3
+BackEnd Method
+.XS
+\*(SN BackEnd Method
+.XE
+.LP
+In the BackEnd method, client window input events are always delivered
+to the IM library, which then passes them to the IM Server.  Events are
+handled serially in the order delivered, and therefore there is no
+synchronization problem between the IM library and the IM Server.
+.LP
+Using this method, the IM library forwards all KeyPress and KeyRelease
+events to the IM Server (as required by the Event Flow Control model 
+described in section 2.4. ``Event Flow Control''), and synchronizes 
+with the IM Server (as described in section 4.16.  ``Filtering Events'').
+.LP
+.NH 3
+FrontEnd Method
+.XS
+\*(SN FrontEnd Method
+.XE
+.LP
+In the FrontEnd method, client window input events are delivered by the
+X server directly to both the IM Server and the IM library.  Therefore this
+method provides much better interactive performance while preediting
+(particularly in cases such as when the IM Server is running locally on
+the user's workstation and the client application is running on another
+workstation over a relatively slow network).
+.LP
+However, the FrontEnd model may have synchronization problems between
+the key events handled in the IM Server and other events handled in the
+client, and these problems could possibly cause the loss or duplication
+of key events.  For this reason, the BackEnd method is the core method
+supported, and the FrontEnd method is made available as an extension for
+performance purposes. (Refer to Appendix A for more information.)
+.LP
+.LP
+.bp
+\^... 0.05 6.513 4.737 10.45
+\^... 0.000i 3.937i 4.687i 0.000i
+.nr 00 \n(.u
+.nf
+.PS 3.937i 4.687i 
+.br
+.ps
+.ps 10
+\h'3.687i'\v'3.437i'\v'-.13m'\L'-0.500i\(br'\v'.13m'
+.sp -1
+\h'3.712i'\v'3.037i'\D'l-0.025i -0.100i'
+.sp -1
+\h'3.687i'\v'2.937i'\D'l-0.025i 0.100i'
+.sp -1
+\h'2.187i'\v'1.938i'\v'-.13m'\L'-0.750i\(br'\v'.13m'
+.sp -1
+\h'2.187i'\v'1.188i'\l'0.750i'
+.sp -1
+\h'2.937i'\v'1.188i'\v'-.13m'\L'1.250i\(br'\v'.13m'
+.sp -1
+\h'2.912i'\v'2.338i'\D'l0.025i 0.100i'
+.sp -1
+\h'2.937i'\v'2.438i'\D'l0.025i -0.100i'
+.sp -1
+\h'2.187i'\v'3.437i'\v'-.13m'\L'-1.499i\(br'\v'.13m'
+.sp -1
+\h'2.212i'\v'2.038i'\D'l-0.025i -0.100i'
+.sp -1
+\h'2.187i'\v'1.938i'\D'l-0.025i 0.100i'
+.sp -1
+\h'1.938i'\v'3.437i'\l'1.999i'
+.sp -1
+\h'3.937i'\v'3.437i'\v'-.13m'\L'0.500i\(br'\v'.13m'
+.sp -1
+\h'3.937i'\v'3.937i'\l'-1.999i'
+.sp -1
+\h'1.938i'\v'3.937i'\v'-.13m'\L'-0.500i\(br'\v'.13m'
+.sp -1
+\h'2.562i'\v'2.438i'\l'2.125i'
+.sp -1
+\h'4.687i'\v'2.438i'\v'-.13m'\L'0.499i\(br'\v'.13m'
+.sp -1
+\h'4.687i'\v'2.937i'\l'-2.125i'
+.sp -1
+\h'2.562i'\v'2.937i'\v'-.13m'\L'-0.499i\(br'\v'.13m'
+.sp -1
+\h'2.562i'\v'1.438i'\l'1.313i'
+.sp -1
+\h'3.875i'\v'1.438i'\v'-.13m'\L'0.437i\(br'\v'.13m'
+.sp -1
+\h'3.875i'\v'1.875i'\l'-1.313i'
+.sp -1
+\h'2.562i'\v'1.875i'\v'-.13m'\L'-0.437i\(br'\v'.13m'
+.sp -1
+\h'1.938i'\v'0.438i'\l'1.999i'
+.sp -1
+\h'3.937i'\v'0.438i'\v'-.13m'\L'1.500i\(br'\v'.13m'
+.sp -1
+\h'3.937i'\v'1.938i'\l'-1.999i'
+.sp -1
+\h'1.938i'\v'1.938i'\v'-.13m'\L'-1.500i\(br'\v'.13m'
+.sp -1
+\D'l0.000i 0.000i'
+.sp -1
+.ps
+.ps 12
+\h'3.812i'\v'3.217i'\h'-0.0m'\v'0.2m'FrontEnd Method (Extension)
+.sp -1
+\h'0.813i'\v'3.217i'\h'-0.0m'\v'0.2m'BackEnd Method (Core)
+.sp -1
+\h'2.562i'\v'3.779i'\h'-0.0m'\v'0.2m'X Server
+.sp -1
+\h'3.062i'\v'2.779i'\h'-0.0m'\v'0.2m'IM Server
+.sp -1
+\h'3.062i'\v'1.717i'\h'-0.0m'\v'0.2m'Library
+.sp -1
+\h'2.187i'\v'0.904i'\h'-0.0m'\v'0.2m'Application
+.sp -1
+.ps
+.ft
+.sp 1+3.937i
+.PE
+.if \n(00 .fi
+.ce
+.sp
+Fig.1 The Flow of Events
+.LP
+.NH 2
+Event Flow Control
+.XS
+\*(SN Event Flow Control
+.XE
+.LP
+This protocol supports two event flow models for communication between the 
+IM library and the IM Server (Static and Dynamic).  
+.LP
+Static Event Flow requires that input events always be sent to the IM
+Server from the client.
+.LP
+Dynamic Event Flow, however, requires only that those input events which
+need to be processed (converted) be sent to the IM Server from the client.
+.LP
+For instance, in the case of inputing a combination of ASCII characters
+and Chinese characters, ASCII characters do not need to be processed in
+the IM Server, so their key events do not have to be sent to the IM
+Server.  On the other hand, key events necessary for composing Chinese
+characters must be sent to the IM Server.
+.LP
+Thus, by adopting the Dynamic Event Flow, the number of requests among the
+X Server, the client, and the IM Server is significantly reduced, and the
+number of context switches is also reduced, resulting in improved performance.
+The IM Server can send 
+.PN XIM_REGISTER_TRIGGERKEYS 
+message in order to switch the event flow in the Dynamic Event Flow.
+.LP
+The protocol for this process is described in section 4.5. ``Event Flow
+Control''.
+.LP
+.NH 1
+Default Preconnection Convention
+.XS
+\*(SN Default Preconnection Convention 
+.XE
+.LP
+IM Servers are strongly encouraged to register their symbolic
+names as the ATOM names into the IM Server directory property, 
+.PN XIM_SERVERS,
+on the root window of the screen_number 0.
+This property can contain a list of ATOMs, and the each ATOM represents
+each possible IM Server.
+IM Server names are restricted to POSIX Portable Filename Character Set.
+To discover if the IM Server is active, see if there is an owner for
+the selection with that atom name.  To learn the address of that IM Server, 
+convert the selection target
+.PN TRANSPORT,
+which will return a string form of the transport address(es).
+To learn the supported locales of that IM Server, convert the selection target 
+.PN LOCALES,
+which will return a set of names of the supported locales in the syntax 
+X/Open defines.
+.LP
+The basic semantics to determine the IM Server if there are
+multiple ATOMs are found in 
+.PN XIM_SERVERS
+property, is first fit if the IM Server name is not given as
+a X modifier's category
+.PN im.
+.LP
+The address information retrievable from the 
+.PN TRANSPORT
+target is a transport-specific name. 
+The preregistered formats for transport-specific names are listed in Appendix B.
+Additional transport-specific names may be registered with X Consortium.
+.LP
+For environments that lack X connections, or for IM Servers which
+do not use the X Window System, the preconnection convention with IM Server 
+may be given outside the X Window system (e.g. using a Name Service).
+.LP
+.NH 1
+Protocol
+.XS
+\*(SN Protocol
+.XE
+.LP
+The protocol described below uses the bi-directional
+synchronous/asynchronous request/reply/error model and is specified
+using the same conventions outlined in Section 2 of the core X Window
+System protocol [1]:
+.LP
+.NH 2
+Basic Requests Packet Format
+.XS
+\*(SN Basic Requests Packet Format
+.XE
+.LP
+This section describes the requests that may be exchanged between the client 
+and the IM Server.
+.LP
+The basic request packet header format is as follows.
+.RS
+.DS
+	major-opcode:			CARD8
+	minor-opcode:			CARD8
+	length:				CARD16
+.DE
+.RE
+The MAJOR-OPCODE specifies which core request or extension package this 
+packet represents.  If the MAJOR-OPCODE corresponds to a core request, 
+the MINOR-OPCODE contains 8 bits of request-specific data.  
+(If the MINOR-OPCODE is not used, it is 0.)
+Otherwise, the MAJOR-OPCODE and the MINOR-OPCODE are specified by
+.PN XIM_QUERY_EXTENSION
+message.  (Refer to 4.7. Query the supported extension protocol list.)
+The LENGTH field specifies the number of 4 bytes elements following the 
+header.  If no additional data is followed by the header, the LENGTH field 
+will be 0.
+.LP
+.NH 2
+Data Types
+.XS
+\*(SN Data Types
+.XE
+.LP
+The following data types are used in the core X IM Server protocol:
+.LP
+.nf
+.ta .2i .5i 2.0i
+BITMASK16
+	CARD16
+.sp
+BITMASK32
+	CARD32
+.sp
+PADDING FORMAT
+	Where N is some expression, and Pad(N) is the number of bytes needed to round N up to a 
+	multiple of four.
+		Pad(N) = (4 - (N mod 4)) mod 4
+.sp
+LPCE
+	1		A character from the4 X Portable Character Set in Latin Portable 
+			Character Encoding
+.bp
+STRING
+	2	n	length of string in bytes
+	n	LISTofLPCE	string
+	p		unused, p=Pad(2+n)
+.sp
+STR
+	1	n	length of name in bytes
+	n	STRING8	name
+.sp
+XIMATTR
+	2	CARD16	attribute ID (*1)
+	2	CARD16	type of the value (*2)
+	2	n	length of im-attribute
+	n	STRING8	im-attribute
+	p		unused, p = Pad(2+n)
+.sp
+The im-attribute argument specifies XIM values such as XNQueryInputStyle.
+.sp
+XICATTR
+	2	CARD16	attribute ID (*1)
+	2	CARD16	type of the value (*2) 
+	2	n	length of ic-attribute
+	n	STRING8	ic-attribute
+	p		unused, p = Pad(2+n) 
+.LP
+.IP (*1)
+XIMATTR and XICATTR are used during the setup stage and XIMATTRIBUTE and 
+XICATTRIBUTE are used after each attribute ID has been recognized by
+the IM Server and the IM library.
+.sp
+.IP (*2)
+The value types are defined as follows:
+.TS H
+tab(:);
+l l l s s
+l l l l l
+l l l l l
+l l l l l
+l l l l l
+l l l l l
+l l l l l
+l l l l l
+l l l l l
+l l l l l
+l l l l l
+l l l l l
+l l l l l
+l l l l l
+l l l l l
+l l l l l
+l l l l l
+l l l l l
+l l l l l
+l l l l l
+l l l l l
+l l l l l
+l l l s s
+l l l s s
+l l l s s
+l l l s s
+l l l s s
+l l l l l.
+_
+.sp 6p
+.B
+values:data:format
+.sp 6p
+_
+.sp 6p
+.TH
+.R
+#0:Separator of NestedList:----- (*3)
+#1:byte data:CARD8
+#2:word data:CARD16
+#3:long data:CARD32
+#4:char data:STRING8
+#5:Window:CARD32
+#10:XIMStyles:2:n:number of XIMStyle list
+::2::unused
+::n:CARD32:XIMStyle list
+#11:XRectangle:2:INT16:X
+::2:INT16:Y
+::2:CARD16:width
+::2:CARD16:height
+#12:XPoint:2:INT16:X
+::2:INT16:Y
+#13:XFontSet:2:n:length of Base font name
+::n:STRING8:Base font name list
+::p::unused, p = Pad(2+n)
+#15:XIMHotKeyTriggers:4:n:T{
+number of XIMTRIGGERKEY list (*4)
+T}
+::n:XIMTRIGGERKEY:XIMHotkeyTrigger list
+#16:XIMHotKeyState::XIMHOTKEYSTATE:T{
+HotKey processing state
+T}
+#17:XIMStringConversion:XIMSTRCONVTEXT
+#18:XIMPreeditState:XIMPREEDITSTATE
+#19:XIMResetState:XIMRESETSTATE
+#x7fff:NestedList:-----	
+.sp 6p
+_
+.TE
+.LP
+.IP (*3)
+The IC value for the separator of NestedList is defined as follows,
+.br
+	#define   XNSeparatorofNestedList   ``separatorofNestedList''
+.br
+, which is registered in X Consortium and cannot be used for any 
+other purpose.
+.sp
+.IP (*4)
+LISTofFOO
+.RS
+A Type name of the form LISTof FOO means a counted list of elements of
+type FOO.
+The size of the length field may vary (it is not necessarily the same
+size as a FOO), and in some cases, it may be implicit.
+.RE
+.sp
+.LP
+.nf
+.ta .2i .5i 2.0i
+XIMTRIGGERKEY
+	4	CARD32	keysym
+	4	CARD32	modifier
+	4	CARD32	modifier mask
+.sp
+ENCODINGINFO
+	2	n	length of encoding info
+	n	STRING8	encoding info
+	p		unused, p=Pad(2+n)
+.sp
+EXT
+	1	CARD8	extension major-opcode
+	1	CARD8	extension minor-opcode
+	2	n	length of extension name
+	n	STRING8	extension name
+	p		unused, p = Pad(n)
+.sp
+XIMATTRIBUTE
+	2	CARD16	attribute ID
+	2	n	value length
+	n		value
+	p		unused, p = Pad(n)
+.sp
+XICATTRIBUTE
+	2	CARD16	attribute ID
+	2	n	value length
+	n		value
+	p		unused, p = Pad(n)
+.sp
+.bp
+.ta .2i .5i 3.0i
+XIMSTRCONVTEXT
+	2	CARD16	XIMStringConversionFeedback
+		#x0000001	XIMStringConversionLeftEdge
+		#x0000002	XIMStringConversionRightEdge
+		#x0000004	XIMStringConversionTopEdge
+		#x0000008	XIMStringConversionBottomEdge
+		#x0000010	XIMStringConversionConvealed
+		#x0000020	XIMStringConversionWrapped
+	2	n	byte length of the retrieved string
+	n	STRING8	retrieved string
+	p		unused, p = Pad(n)
+	2	m	byte length of feedback array
+	2		unused
+	m	LISTofXIMSTRCONVFEEDBACK	feedback array(*1)
+.IP (*1)
+This field is reserved for future use.
+.sp
+.LP
+.nf
+.ta .2i .5i 2.0i
+XIMFEEDBACK
+	4	CARD32	XIMFeedback
+		#x000001	XIMReverse
+		#x000002	XIMUnderline
+		#x000004	XIMHighlight
+		#x000008	XIMPrimary
+		#x000010	XIMSecondary
+		#x000020	XIMTertiary
+		#x000040	XIMVisibleToForward
+		#x000080	XIMVisibleToBackward
+		#x000100	XIMVisibleCenter
+.sp
+XIMHOTKEYSTATE
+	4	CARD32	XIMHotKeyState
+		#x0000001	XIMHotKeyStateON
+		#x0000002	XIMHotKeyStateOFF
+.sp
+XIMPREEDITSTATE
+	4	CARD32	XIMPreeditState
+		#x0000001	XIMPreeditEnable
+		#x0000002	XIMPreeditDisable
+.sp
+XIMRESETSTATE
+	4	CARD32	XIMResetState
+		#x0000001	XIMInitialState
+		#x0000002	XIMPreserveState
+.LP
+.NH 2
+Error Notification
+.XS
+\*(SN Error Notification
+.XE
+.LP
+Both the IM Server and the IM library return 
+.PN XIM_ERROR
+messages instead of the corresponding reply messages if any errors occur 
+during data processing.
+.LP
+At most one error is generated per request. If more than one error condition
+is encountered in processing a request, the choice of which error is returned
+is implementation-dependent.
+.LP
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_ERROR (IM Server \(<-\(-> IM library)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:CARD16:input-context-ID
+:2:BITMASK16:flag (*1)
+::#0000:Both Input-Method-ID and Input-Context-ID are invalid
+::#0001:Input-Method-ID is valid
+::#0002:Input-Context-ID is valid
+:2:CARD16:Error Code
+::#1:BadAlloc
+::#2:BadStyle
+::#3:BadClientWindow
+::#4:BadFocusWindow
+::#5:BadArea
+::#6:BadSpotLocation
+::#7:BadColormap
+::#8:BadAtom
+::#9:BadPixel
+::#10:BadPixmap
+::#11:BadName
+::#12:BadCursor
+::#13:BadProtocol
+::#14:BadForeground
+::#15:BadBackground
+::#16:LocaleNotSupported
+::#999:BadSomething (*2)
+:2:n:byte length of error detail.
+:2:CARD16:type of error detail (*3)
+:n:STRING8:error detail (*4)
+:p::unused, p = Pad(n)
+.TE
+.LP
+.IP (*1)
+Before an IM is created, both Input-Method-ID and 
+Input-Context-ID are invalid.
+Before an IC is created, only Input-Method-ID is valid. 
+After that, both of Input-Method-ID and Input-Context-ID are valid.
+.IP (*2) 
+Unspecific error, for example ``language engine died''
+.IP (*3)
+This field is reserved for future use.
+.IP (*4)
+Vendor defined detail error message
+.RE
+.LP
+.NH 2
+Connection Establishment
+.XS
+\*(SN Connection Establishment
+.XE
+.LP
+.PN XIM_CONNECT
+message requests to establish a connection over a mutually-understood virtual 
+stream.
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_CONNECT (IM library \(-> IM Server)
+.sp 6p
+:1::byte order
+::#x42 MSB first
+::#x6c LSB first
+:1::unused
+:2:CARD16:client-major-protocol-version (*1)
+:2:CARD16:client-minor-protocol-version (*1)
+:2:CARD16:number of client-auth-protocol-names
+:n:LISTofSTRING:client-auth-protocol-names
+.TE
+.LP
+.IP (*1)
+Specify the version of IM Protocol that the client supports.
+.RE
+.sp
+.LP
+A client must send 
+.PN XIM_CONNECT
+message as the first message on the connection. 
+The list specifies the names of authentication protocols the sending 
+IM Server is willing to perform.
+(If the client need not authenticate, the list may be omited.)
+.LP
+.PN XIM_AUTH_REQUIRED 
+message is used to send the authentication protocol name and protocol-specific 
+data.
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_AUTH_REQUIRED (IM library \(<-\(-> IM Server)
+.sp 6p
+:1:CARD8:auth-protocol-index
+:3::unused
+:2:n:length of authentication data
+:2::unused
+:n:<varies>:data 
+:p::unused, p = Pad(n)
+.TE
+.RE
+.LP
+The auth-protocol is specified by an index into the list of names 
+given in the 
+.PN XIM_CONNECT
+or 
+.PN XIM_AUTH_SETUP
+message. Any protocol-specific data that might be required is also sent.
+.LP
+The IM library sends
+.PN XIM_AUTH_REPLY
+message as the reply to 
+.PN XIM_AUTH_REQUIRED
+message, if the IM Server is authenticated. 
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_AUTH_REPLY (IM library \(-> IM Server)
+.sp 6p
+:2:n:length of authentication data
+:2::unused
+:2:n:length of authentication data
+:2::unused
+:n:<varies>:data
+:p::unused, p = Pad(n)
+.TE
+.RE
+.LP
+The auth data is specific to the authentication protocol in use.
+.LP
+.PN XIM_AUTH_NEXT 
+message requests to send more auth data.
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_AUTH_NEXT (IM library \(<-\(-> IM Server)
+.sp 6p
+:2:n:length of authentication data
+:2::unused
+:n:<varies>:data
+:p::unused, p = Pad(n)
+.TE
+.RE
+.LP	
+The auth data is specific to the authentication protocol in use.
+.LP
+The IM Server sends
+.PN XIM_AUTH_SETUP
+message to authenticate the client. 
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_AUTH_SETUP (IM Server \(-> IM library)
+.sp 6p
+:2:CARD16:number of client-auth-protocol-names
+:2::unused
+:n:LISTofSTRING:server-auth-protocol-names
+.TE
+.RE
+.LP
+The list specifies the names of authentication protocols the
+client is willing to perform.
+.LP
+.PN XIM_AUTH_NG
+message requests to give up the connection.  
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_AUTH_NG (IM library \(<-\(-> IM Server)
+.TE
+.RE
+.LP
+The IM Server sends
+.PN XIM_CONNECT_REPLY
+message as the reply to
+.PN XIM_CONNECT
+or
+.PN XIM_AUTH_REQUIRED
+message.
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_CONNECT_REPLY (IM Server \(-> IM library)
+.sp 6p
+:2:CARD16:server-major-protocol-version (*1)
+:2:CARD16:server-minor-protocol-version (*1)
+.TE
+.LP
+.IP (*1)
+Specify the version of IM Protocol that the IM Server supports.
+This document specifies major version one, minor version zero.
+.RE
+.sp
+.LP	
+Here are the state diagrams for the client and the IM Server.
+.sp
+.B
+State transitions for the client
+.R
+.RS
+.LP
+\fIinit_status\fP:
+.RS
+Use authorization function \(-> \fIclient_ask\fP
+.br
+Not use authorization function \(-> \fIclient_no_check\fP
+.RE
+.sp
+.LP
+\fIstart\fP:
+.RS
+Send 
+.PN XIM_CONNECT
+.RS
+If \fIclient_ask\fP \(-> \fIclient_wait1\fP
+.br
+If \fIclient_no_check\fP, client-auth-protocol-names may be omited \(-> \fIclient_wait2\fP
+.RE
+.RE
+.sp
+.LP
+\fIclient_wait1\fP:
+.RS
+Receive 
+.PN XIM_AUTH_REQUIRED
+\(-> \fIclient_check\fP
+.br
+Receive <other> \(-> \fIclient_NG\fP
+.RE
+.sp
+.LP
+\fIclient_check\fP:
+.RS
+If no more auth needed, send 
+.PN XIM_AUTH_REPLY
+\(-> \fIclient_wait2\fP
+.br
+If good auth data, send 
+.PN XIM_AUTH_NEXT
+\(-> \fIclient_wait1\fP
+.br
+If bad auth data, send 
+.PN XIM_AUTH_NG
+\(-> give up on this protocol
+.RE
+.sp
+.LP
+\fIclient_wait2\fP:
+.RS
+Receive 
+.PN XIM_CONNECT_REPLY
+\(-> connect
+.br
+Receive 
+.PN XIM_AUTH_SETUP 
+\(-> \fIclient_more\fP
+.br
+Receive 
+.PN XIM_AUTH_NEXT
+\(-> \fIclient_more\fP
+.br
+Receive 
+.PN XIM_AUTH_NG
+\(-> give up on this protocol
+.br
+Receive <other> \(-> \fIclient_NG\fP
+.RE
+.sp
+.LP
+\fIclient_more\fP:
+.RS
+Send 
+.PN XIM_AUTH_REQUIRED
+\(-> \fIclient_wait2\fP
+.RE
+.sp
+.LP
+\fIclient_NG\fP:
+.RS
+Send 
+.PN XIM_AUTH_NG
+\(-> give up on this protocol
+.RE
+.RE
+.sp
+.LP
+.B
+State transitions for the IM Server
+.R
+.RS
+.LP
+\fIinit-status\fP:
+.RS
+Use authorization function \(-> \fIserver_ask\fP
+.br
+Not use authorization function \(-> \fIserver_no_check\fP
+.RE
+.sp
+.LP
+\fIstart\fP:
+.RS
+Receive 
+.PN XIM_CONNECT
+\(-> \fIstart2\fP
+.br
+Receive <other> \(-> \fIserver_NG\fP
+.RE
+.sp
+.LP
+\fIstart2\fP:
+.RS
+If \fIclient_ask\fP, send 
+.PN XIM_AUTH_REQUIRED
+\(-> \fIserver_wait1\fP
+.br
+If \fIclient_no_check\fP and \fIserver_ask\fP, send 
+.PN XIM_AUTH_SETUP
+\(-> \fIserver_wait2\fP
+.br
+If \fIclient_no_check\fP and \fIserver_no_check\fP, send 
+.PN XIM_CONNECT_REPLY
+\(-> connect
+.RE
+.sp
+.LP
+\fIserver_wait1\fP:
+.RS
+Receive 
+.PN XIM_AUTH_REPLY
+\(-> \fIserver2\fP
+.br
+Receive 
+.PN XIM_AUTH_NEXT
+\(-> \fIserver_more\fP
+.br
+Receive <other> \(-> \fIserver_NG\fP
+.RE
+.sp
+.LP
+\fIserver_more\fP
+.RS
+Send 
+.PN XIM_AUTH_REQUIRED
+\(-> \fIserver_wait1\fP
+.RE
+.sp
+.LP
+\fIserver2\fP
+.RS
+If \fIserver_ask\fP, send 
+.PN XIM_AUTH_SETUP
+\(-> \fIserver_wait2\fP
+.br
+If \fIserver_no_check\fP, send 
+.PN XIM_CONNECT_REPLY 
+\(-> connect
+.RE
+.sp
+.LP
+\fIserver_wait2\fP
+.RS
+Receive 
+.PN XIM_AUTH_REQUIRED
+\(-> \fIserver_check\fP
+.br
+Receive <other> \(-> \fIserver_NG\fP
+.RE
+.sp
+.LP
+\fIserver_check\fP
+.RS
+If no more auth data, send 
+.PN XIM_CONNECT_REPLY
+\(-> connect
+.br
+If bad auth data, send 
+.PN XIM_AUTH_NG
+\(-> give up on this protocol
+.br
+If good auth data, send 
+.PN XIM_AUTH_NEXT
+\(-> \fIserver_wait2\fP
+.RE
+.sp
+.LP
+\fIserver_NG\fP
+.RS
+Send 
+.PN XIM_AUTH_NG
+\(-> give up on this protocol
+.RE
+.RE
+.sp
+.LP
+.PN XIM_DISCONNECT 
+message requests to shutdown the connection over a mutually-understood 
+virtual stream.
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_DISCONNECT (IM library \(-> IM Server)
+.TE
+.RE
+.LP
+.PN XIM_DISCONNECT
+is a synchronous request.  The IM library should wait until it receives 
+either an 
+.PN XIM_DISCONNECT_REPLY
+packet or an 
+.PN XIM_ERROR
+packet.  
+.LP
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_DISCONNECT_REPLY (IM Server \(-> IM library)
+.TE
+.RE
+.LP
+.PN XIM_OPEN
+requests to establish a logical connection between the IM library and the IM 
+Server. 
+.LP
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_OPEN (IM library \(-> IM Server)
+.sp 6p
+:n:STR:locale name
+:p::unused, p = Pad(n)
+.TE
+.RE
+.LP
+.PN XIM_OPEN
+is a synchronous request.  The IM library should wait until receiving 
+either an 
+.PN XIM_OPEN_REPLY
+packet or an 
+.PN XIM_ERROR 
+packet. 
+.LP
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_OPEN_REPLY (IM Server \(-> IM library)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:n:byte length of IM attributes supported
+:n:LISTofXIMATTR:IM attributes supported
+:2:m:byte length of IC attributes supported
+:2:CARD16:unused
+:m:LISTofXICATTR: IC attributes supported
+.TE
+.RE
+.LP
+.PN XIM_OPEN_REPLY
+message returns all supported IM and IC attributes in LISTofXIMATTR and 
+LISTofXICATTR.  These IM and IC attribute IDs are used to reduce the amount
+of data which must be transferred via the network. In addition, this
+indicates to the IM library what kinds of IM/IC attributes can be used
+in this session, and what types of data will be exchanged. This allows 
+the IM Server provider and application writer to support IM system 
+enhancements with new IM/IC attributes, without modifying Xlib.
+The IC value for the separator of NestedList must be included in the
+LISTofXICATTR.
+.LP
+.PN XIM_CLOSE 
+message requests to shutdown the logical connection between the IM library
+and the IM Server. 
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_CLOSE (IM library \(-> IM Server)
+.sp 6p
+:2:CARD16:input-method-ID
+:2::unused
+.TE
+.RE
+.LP
+.PN XIM_CLOSE
+is a synchronous request.  The IM library should wait until receiving 
+either an 
+.PN XIM_CLOSE_REPLY
+packet or an 
+.PN XIM_ERROR
+packet. 
+.LP
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_CLOSE_REPLY (IM Server \(-> IM library)
+.sp 6p
+:2:CARD16:input-method-ID
+:2::unused
+.TE
+.RE
+.LP
+.NH 2
+Event Flow Control 
+.XS
+\*(SN Event Flow Control
+.XE
+.LP
+An IM Server must send 
+.PN XIM_SET_EVENT_MASK 
+message to the IM library in order for events to be forwarded to the IM 
+Server, since the IM library initially doesn't forward any events to the 
+IM Server. In the protocol, the IM Server will specify masks of X events 
+to be forwarded and which need to be synchronized by the IM library.
+.LP
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_SET_EVENT_MASK (IM Server \(-> IM library)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:CARD16:input-context-ID
+:4:EVENTMASK:forward-event-mask (*1)
+:4:EVENTMASK:synchronous-event-mask (*2)
+.TE
+.LP
+.IP (*1)
+Specify all the events to be forwarded to the IM Server by the IM library.
+.IP (*2)
+Specify the events to be forwarded with synchronous flag on by the IM library.
+.RE
+.sp
+.LP
+.PN XIM_SET_EVENT_MASK 
+is an asynchronous request.  The event masks are valid immediately after 
+they are set until changed by another 
+.PN XIM_SET_EVENT_MASK
+message.  If input-context-ID is set to zero, the default value of the 
+input-method-ID will be changed to the event masks specified in the request. 
+That value will be used for the IC's which have no individual values.
+.LP
+Using the Dynamic Event Flow model, an IM Server sends 
+.PN XIM_REGISTER_TRIGGERKEYS 
+message to the IM library before sending
+.PN XIM_OPEN_REPLY
+message.  
+Or the IM library may suppose that the IM Server uses the Static Event Flow 
+model.
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_REGISTER_TRIGGERKEYS (IM Server \(-> IM library)
+.sp 6p
+:2:CARD16:input-method-ID
+:2::unused
+:4:n:byte length of on-keys
+:n:LISTofXIMTRIGGERKEY:on-keys list
+:4:m:byte length of off-keys
+:m:LISTofXIMTRIGGERKEY:off-keys list
+.TE
+.RE
+.LP
+.PN XIM_REGISTER_TRIGGERKEYS 
+is an asynchronous request.  
+The IM Server notifys the IM library of on-keys and off-keys lists with 
+this message.
+.LP
+The IM library notifys the IM Server with 
+.PN XIM_TRIGGER_NOTIFY 
+message that a key event matching either on-keys or off-keys has been occurred.
+.LP
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_TRIGGER_NOTIFY (IM library \(-> IM Server)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:CARD16:input-context-ID
+:4:CARD32:flag
+::#0:on-keys list
+::#1:off-keys list
+:4:CARD32:index of keys list
+:4:EVENTMASK:client-select-event-mask (*1)
+.TE
+.LP
+.IP (*1) 
+Specify the events currently selected by the IM library with XSelectInput.
+.RE
+.sp
+.LP
+.PN XIM_TRIGGER_NOTIFY 
+is a synchronous request.  The IM library should wait until receiving 
+either an 
+.PN XIM_TRIGGER_NOTIFY_REPLY
+packet or an 
+.PN XIM_ERROR
+packet. 
+.LP
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_TRIGGER_NOTIFY_REPLY (IM Server \(-> IM library)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:CARD16:input-context-ID
+.TE
+.RE
+.LP
+.NH 2
+Encoding Negotiation
+.XS
+\*(SN Encoding Negotiation
+.XE
+.LP
+.PN XIM_ENCODING_NEGOTIATION
+message requests to decide which encoding to be sent across the wire.
+When the negotiation fails, the fallback default encoding is Portable 
+Character Encoding.
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_ENCODING_NEGOTIATION (IM library \(-> IM Server).sp 6p
+:2:CARD16:input-method-ID
+:2:n:byte length of encodings listed by name
+:n:LISTofSTR:list of encodings supported in the IM library.
+:p::unused, p = Pad(n)
+:2:m:byte length of encodings listed by detailed data
+:2::unused
+:m:LISTofENCODINGINFO:list of encordings supported in the IM library
+.TE
+.RE
+.LP
+The IM Server must choose one encoding from the list sent by the IM library.
+If index of the encording determined is -1 to indicate that the negotiation
+is failed, the fallback default encoding is used. 
+The message must be issued after sending 
+.PN XIM_OPEN
+message via XOpenIM().
+The name of encoding may be registered with X Consortium.
+.LP
+.PN XIM_ENCODING_NEGOTIATION
+is a synchronous request.  The IM library should wait until receiving 
+either an 
+.PN XIM_ENCODING_NEGOTIATION_REPLY
+packet or an 
+.PN XIM_ERROR
+packet. 
+.LP
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_ENCODING_NEGOTIATION_REPLY (IM Server \(-> IM library)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:CARD16:category of the encoding determined.
+::#0:name
+::#1:detailed data
+:2:INT16:index of the encoding determinated.
+:2::unused
+.TE
+.RE
+.LP
+.NH 2
+Query the supported extension protocol list
+.XS
+\*(SN Query the supported extension protocol list
+.XE
+.LP
+.PN XIM_QUERY_EXTENSION
+message requests to query the IM extensions supported by the IM Server to 
+which the client is being connected. 
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_QUERY_EXTENSION (IM library \(-> IM Server)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:n:T{
+byte length of extensions supported by the IM library
+T}
+:n:LISTofSTR:extensions supported by the IM library
+:p::unused, p = Pad(n)
+.TE
+.RE
+.LP
+An example of a supported extension is FrontEnd.
+The message must be issued after sending 
+.PN XIM_OPEN 
+message via XOpenIM().
+.LP
+If n is 0, the IM library queries the IM Server for all extensions.
+.LP
+If n is not 0, the IM library queries whether the IM Server supports the 
+contents specified in the list.
+.LP
+If a client uses an extension request without previously having issued a
+.PN XIM_QUERY_EXTENSION
+message for that extension, the IM Server responds with a
+.PN BadProtocol
+error.  If the IM Server encounters a request with an unknown MAJOR-OPCODE 
+or MINOR-OPCODE, it responds with a
+.PN BadProtocol
+error.
+.LP
+.PN XIM_QUERY_EXTENSION
+is a synchronous request.  The IM library should wait until receiving 
+either an 
+.PN XIM_QUERY_EXTENSION_REPLY
+packet or an 
+.PN XIM_ERROR
+packet.
+.LP
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_QUERY_EXTENSION_REPLY (IM Server \(-> IM library)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:n:T{
+byte length of extensions supported by both the IM library and the IM Server
+T}
+:n:LISTofEXT:T{
+list of extensions supported by both the IM library and the IM Server
+T}
+.TE
+.RE
+.LP
+.PN XIM_QUERY_EXTENSION_REPLY
+message returns the list of extensions supported by both the IM library and 
+the IM Server. If the list passed in 
+.PN XIM_QUERY_EXTENSION
+message is NULL, the IM Server returns the full list of extensions supported 
+by the IM Server.  If the list is not NULL, the IM Server returns the 
+extensions in the list that are supported by the IM Server.
+.LP
+A zero-length string is not a valid extension name.  The IM library should 
+disregard any zero-length strings that are returned in the extension list.  
+The IM library does not use the requests which are not supported by the IM 
+Server.
+.LP
+.NH 2
+Setting IM Values
+.XS
+\*(SN Setting IM Values
+.XE
+.LP
+.PN XIM_SET_IM_VALUES 
+requests to set attributes to the IM.
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_SET_IM_VALUES (IM library \(-> IM Server)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:n:byte length of im-attribute
+:n:LISTofXIMATTRIBUTE:im-attributes
+.TE
+.RE
+.LP
+The im-attributes in 
+.PN XIM_SET_IM_VALUES
+message are specified as a LISTofXIMATTRIBUTE, specifying the attributes 
+to be set. Attributes other than the ones returned by 
+.PN XIM_OPEN_REPLY
+message should not be specified.  
+.LP
+.PN XIM_SET_IM_VALUES 
+is a synchronous request. The IM library should wait until receiving 
+either an 
+.PN XIM_SET_IM_VALUES_REPLY
+packet or an 
+.PN XIM_ERROR
+packet, because it must receive the error attribute if 
+.PN XIM_ERROR
+message is returned.
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_SET_IM_VALUES_REPLY (IM Server \(-> IM library)
+.sp 6p
+:2:CARD16:input-method-ID
+:2::unused
+.TE
+.RE
+.LP
+.PN XIM_SET_IM_VALUES_REPLY
+message returns the input-method-ID to distinguish replies from multiple IMs.
+.LP
+.NH 2
+Getting IM Values
+.XS
+\*(SN getting IM Values
+.XE
+.LP
+.PN XIM_GET_IM_VALUES 
+requests to query IM values supported by the IM Server currently being 
+connected.
+.LP
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_GET_IM_VALUES (IM library \(-> IM Server)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:n:byte length of im-attribute-id
+:n:LISTofCARD16:im-attribute-id
+:p::unused, p=Pad(n)
+.TE
+.RE
+.LP
+.PN XIM_GET_IM_VALUES
+is a synchronous request.  The IM library should wait until it receives 
+either an 
+.PN XIM_GET_IM_VALUES_REPLY
+packet or an 
+.PN XIM_ERROR
+packet.
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_GET_IM_VALUES_REPLY (IM Server \(-> IM library)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:n:byte length of im-attributes returned
+:n:LISTofXIMATTRIBUTE:im-attributes returned
+.TE
+.RE
+.LP
+The IM Server returns IM values with 
+.PN XIM_GET_IM_VALUES_REPLY
+message.  The order of the returned im-attribute values corresponds directly
+to that of the list passed with the 
+.PN XIM_GET_IM_VALUES
+message.
+.LP
+.NH 2
+Creating an IC
+.XS
+\*(SN Creating an IC
+.XE
+.LP
+.PN XIM_CREATE_IC
+message requests to create an IC.
+.LP
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_CREATE_IC (IM library \(-> IM Server)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:n:byte length of ic-attributes
+:n:LISTofXICATTRIBUTE:ic-attributes
+.TE
+.RE
+.LP
+The input-context-id is specified by the IM Server to identify the client
+(IC).  (It is not specified by the client in 
+.PN XIM_CREATE_IC
+message.), and it should not be set to zero.
+.LP
+.PN XIM_CREATE_IC
+is a synchronous request which returns the input-context-ID. 
+The IM library should wait until it receives either an 
+.PN XIM_CREATE_IC_REPLY
+packet or an 
+.PN XIM_ERROR
+packet. 
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_CREATE_IC_REPLY (IM Server \(-> IM library)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:CARD16:input-context-ID
+.TE
+.RE
+.LP
+.NH 2
+Destroying the IC
+.XS
+\*(SN Destroying the IC
+.XE
+.LP
+.PN XIM_DESTROY_IC
+message requests to destroy the IC.
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_DESTROY_IC (IM library \(-> IM Server)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:CARD16:input-context-ID
+.TE
+.RE
+.LP
+.PN XIM_DESTROY_IC 
+is a synchronous request. The IM library should not free its resources 
+until it receives an 
+.PN XIM_DESTROY_IC_REPLY
+message because
+.PN XIM_DESTROY_IC
+message may result in Callback packets such as 
+.PN XIM_PREEDIT_DRAW
+and
+.PN XIM_PREEDIT_DONE.
+.LP
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_DESTROY_IC_REPLY (IM Server \(-> IM library)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:CARD16:input-context-ID
+.TE
+.RE
+.LP
+.NH 2
+Setting IC Values
+.XS
+\*(SN Setting IC Values
+.XE
+.LP
+.PN XIM_SET_IC_VALUES
+messages requests to set attributes to the IC.
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_SET_IC_VALUES (IM library \(-> IM Server)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:CARD16:input-context-ID
+:2:n:byte length of ic-attributes
+:2::unused
+:n:LISTofXICATTRIBUTE:ic-attributes
+.TE
+.RE
+.LP
+The ic-attributes in 
+.PN XIM_SET_IC_VALUES
+message are specified as a LISTofXICATTRIBUTE, specifying the attributes 
+to be set. Attributes other than the ones returned by 
+.PN XIM_OPEN_REPLY
+message should not be specified. 
+.LP
+.PN XIM_SET_IC_VALUES 
+is a synchronous request. The IM library should wait until receiving 
+either an 
+.PN XIM_SET_IC_VALUES_REPLY 
+packet or an 
+.PN XIM_ERROR
+packet, because it must receive the error attribute if 
+.PN XIM_ERROR
+message is returned. 
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_SET_IC_VALUES_REPLY (IM Server \(-> IM library)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:CARD16:input-context-ID
+.TE
+.RE
+.LP
+.NH 2
+Getting IC Values
+.XS
+\*(SN Getting IC Values
+.XE
+.LP
+.PN XIM_GET_IC_VALUES
+message requests to query IC values supported by the IM Server currently
+being connected.
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_GET_IC_VALUES (IM library \(-> IM Server)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:CARD16:input-context-ID
+:2:n:byte length of ic-attribute-id
+:n:LISTofCARD16:ic-attribute-id
+:p::unused, p=Pad(2+n)
+.TE
+.RE
+.LP
+In LISTofCARD16, the appearance of the ic-attribute-id for the separator 
+of NestedList shows the end of the heading nested list.
+.LP
+.PN XIM_GET_IC_VALUES
+is a synchronous request and returns each attribute with its values to 
+show the correspondence.  The IM library should wait until receiving 
+either an 
+.PN XIM_GET_IC_VALUES_REPLY
+packet or an 
+.PN XIM_ERROR
+packet.
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_GET_IC_VALUES_REPLY (IM Server \(-> IM library)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:CARD16:input-context-ID
+:2:n:byte length of ic-attribute 
+:2::unused
+:n:LISTofXICATTRIBUTE:ic-attribute
+.TE
+.RE
+.LP
+.NH 2
+Setting IC Focus
+.XS
+\*(SN Setting IC Focus
+.XE
+.LP
+.PN XIM_SET_IC_FOCUS
+message requests to set the focus to the IC.
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_SET_IC_FOCUS (IM library \(-> IM Server)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:CARD16:input-context-ID
+.TE
+.RE
+.LP
+.PN XIM_SET_IC_FOCUS
+is an asynchronous request.
+.LP
+.NH 2
+Unsetting IC Focus
+.XS
+\*(SN Unsetting IC Focus
+.XE
+.LP
+.PN XIM_UNSET_IC_FOCUS
+message requests to unset the focus to the focused IC.
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_UNSET_IC_FOCUS (IM library \(-> IM Server)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:CARD16:input-context-ID
+.TE
+.RE
+.LP
+.PN XIM_UNSET_IC_FOCUS
+is an asynchronous request.
+.LP
+.NH 2
+Filtering Events
+.XS
+\*(SN Filtering Events
+.XE
+.LP
+Event filtering is mainly provided for BackEnd method to allow input method
+to capture X events transparently to clients.
+.LP
+X Events are forwarded by 
+.PN XIM_FORWARD_EVENT
+message.
+This message can be operated both synchronously and asynchronously. 
+If the requester sets the synchronous flag, the receiver must send 
+.PN XIM_SYNC_REPLY
+message back to the requester when all the data processing is done.
+.sp
+.B
+Protocol flow of BackEnd model
+.R
+.LP
+.LP
+With BackEnd method, the protocol flow can be classified into two
+methods in terms of synchronization, depending on the synchronous-eventmask
+of 
+.PN XIM_SET_EVENT_MASK
+message.  One can be called on-demand-synchronous method and another
+can be called as full-synchronous method.
+.LP
+In on-demand-synchronous method, the IM library always receives
+.PN XIM_FORWARD_EVENT
+or
+.PN XIM_COMMIT
+message as a synchronous request. Also, the IM Server needs to synchronously 
+process the correspondent reply from the IM library and the following 
+.PN XIM_FORWARD_EVENT
+message sent from the IM library when any of the event causes the IM Server 
+to send 
+.PN XIM_FORWARD_EVENT
+or
+.PN XIM_COMMIT
+message to the IM library, so that the input service is consistent.  If the 
+IM library gets the control back from the application after receiving the 
+synchronous request, the IM library replies for the synchronous request before 
+processing any of the events. In this time, the IM Server blocks 
+.PN XIM_FORWARD_EVENT
+message which is sent by the IM library, and handles it after receiving the 
+reply. However, the IM Server handles the other protocols at any time.
+.LP
+In full-synchronous method, the IM library always sends 
+.PN XIM_FORWARD_EVENT
+message to the IM Server as a synchronous request. Therefore, the reply to it 
+from the IM Server will be put between the 
+.PN XIM_FORWARD_EVENT
+message and its 
+.PN XIM_SYNC_REPLY
+message.
+In case of sending 
+.PN XIM_FORWARD_EVENT
+or
+.PN XIM_COMMIT
+message, the IM Server should set the synchronous flag off. Because the 
+synchronization can be done by the following 
+.PN XIM_SYNC_REPLY
+message.
+.sp
+.LP
+.B
+Sample Protocol flow chart 1
+.R
+.LP
+Following chart shows one of the simplest protocol flow which only
+deals with keyevents for preediting operation.
+.LP
+.\"====================== event flow figure start =====================
+\^... 0.425 6.888 6.3 10.296
+\^... 0.000i 3.408i 5.875i 0.000i
+.nr 00 \n(.u
+.nf
+.PS 3.408i 5.875i 
+.br
+.ps 11
+\h'3.125i'\v'0.496i'\D'l1.625i 0.250i'
+.sp -1
+\h'4.647i'\v'0.756i'\D'l0.103i -0.010i'
+.sp -1
+\h'4.655i'\v'0.706i'\D'l0.095i 0.040i'
+.sp -1
+\h'3.125i'\v'1.221i'\D'l1.687i 0.188i'
+.sp -1
+\h'4.710i'\v'1.423i'\D'l0.102i -0.014i'
+.sp -1
+\h'4.715i'\v'1.373i'\D'l0.097i 0.036i'
+.sp -1
+\h'4.750i'\v'0.971i'\D'l-1.625i 0.438i'
+.sp -1
+\h'3.215i'\v'1.359i'\D'l-0.090i 0.050i'
+.sp -1
+\h'3.228i'\v'1.407i'\D'l-0.103i 0.002i'
+.sp -1
+\h'2.000i'\v'0.409i'\D'l1.000i 0.062i'
+.sp -1
+\h'2.899i'\v'0.490i'\D'l0.101i -0.019i'
+.sp -1
+\h'2.902i'\v'0.440i'\D'l0.098i 0.031i'
+.sp -1
+\h'2.000i'\v'1.034i'\D'l1.000i 0.125i'
+.sp -1
+\h'2.898i'\v'1.171i'\D'l0.102i -0.012i'
+.sp -1
+\h'2.904i'\v'1.122i'\D'l0.096i 0.037i'
+.sp -1
+\h'3.000i'\v'1.409i'\D'l-1.000i 0.062i'
+.sp -1
+\h'2.098i'\v'1.440i'\D'l-0.098i 0.031i'
+.sp -1
+\h'2.101i'\v'1.490i'\D'l-0.101i -0.019i'
+.sp -1
+\h'1.125i'\v'1.846i'\l'-0.500i'
+.sp -1
+\h'0.725i'\v'1.821i'\D'l-0.100i 0.025i'
+.sp -1
+\h'0.725i'\v'1.871i'\D'l-0.100i -0.025i'
+.sp -1
+\h'0.688i'\v'0.159i'\l'0.437i'
+.sp -1
+\h'1.025i'\v'0.184i'\D'l0.100i -0.025i'
+.sp -1
+\h'1.025i'\v'0.134i'\D'l0.100i 0.025i'
+.sp -1
+\h'0.688i'\v'0.846i'\l'0.437i'
+.sp -1
+\h'1.025i'\v'0.871i'\D'l0.100i -0.025i'
+.sp -1
+\h'1.025i'\v'0.821i'\D'l0.100i 0.025i'
+.sp -1
+\h'5.562i'\v'1.409i'\l'0.313i'
+.sp -1
+\h'5.875i'\v'1.409i'\v'-.13m'\L'1.937i\(br'\v'.13m'
+.sp -1
+\h'5.875i'\v'3.346i'\D'l-0.250i 0.000i'
+.sp -1
+\h'5.725i'\v'3.321i'\D'l-0.100i 0.025i'
+.sp -1
+\h'5.725i'\v'3.371i'\D'l-0.100i -0.025i'
+.sp -1
+\h'2.062i'\v'2.096i'\l'0.875i'
+.sp -1
+\h'2.837i'\v'2.121i'\D'l0.100i -0.025i'
+.sp -1
+\h'2.837i'\v'2.071i'\D'l0.100i 0.025i'
+.sp -1
+\h'3.000i'\v'0.034i'\v'-.13m'\L'3.374i\(br'\v'.13m'
+.sp -1
+\h'4.875i'\v'0.034i'\v'-.13m'\L'3.374i\(br'\v'.13m'
+.sp -1
+\h'2.013i'\v'2.871i'\D'l0.937i 0.250i'
+.sp -1
+\h'2.847i'\v'3.119i'\D'l0.103i 0.002i'
+.sp -1
+\h'2.860i'\v'3.071i'\D'l0.090i 0.050i'
+.sp -1
+\h'3.062i'\v'3.134i'\D'l1.688i 0.187i'
+.sp -1
+\h'4.648i'\v'3.335i'\D'l0.102i -0.014i'
+.sp -1
+\h'4.653i'\v'3.285i'\D'l0.097i 0.036i'
+.sp -1
+\h'3.062i'\v'2.533i'\D'l1.750i 0.213i'
+.sp -1
+\h'4.710i'\v'2.759i'\D'l0.102i -0.013i'
+.sp -1
+\h'4.716i'\v'2.709i'\D'l0.096i 0.037i'
+.sp -1
+\h'3.062i'\v'2.096i'\l'1.750i'
+.sp -1
+\h'4.712i'\v'2.121i'\D'l0.100i -0.025i'
+.sp -1
+\h'4.712i'\v'2.071i'\D'l0.100i 0.025i'
+.sp -1
+\h'4.812i'\v'2.284i'\l'-1.750i'
+.sp -1
+\h'3.162i'\v'2.259i'\D'l-0.100i 0.025i'
+.sp -1
+\h'3.162i'\v'2.309i'\D'l-0.100i -0.025i'
+.sp -1
+\h'1.250i'\v'0.193i'\h'-0.0m'\v'0.2m'\s10\fRXNextEvent\fP
+.sp -1
+\h'1.250i'\v'0.381i'\h'-0.0m'\v'0.2m'\s10\fRXFilterEvent\fP
+.sp -1
+\h'1.250i'\v'0.881i'\h'-0.0m'\v'0.2m'\s10\fRXNextEvent\fP
+.sp -1
+\h'1.250i'\v'1.068i'\h'-0.0m'\v'0.2m'\s10\fRXFilterEvent\fP
+.sp -1
+\h'1.250i'\v'1.506i'\h'-0.0m'\v'0.2m'\s10\fRXNextEvent\fP
+.sp -1
+\h'1.250i'\v'1.881i'\h'-0.0m'\v'0.2m'\s10\fRXmbLookupString\fP
+.sp -1
+\h'4.875i'\h'-0.0m'\v'0.2m'\s12\fRIM Server\fP
+.sp -1
+\h'2.437i'\h'-0.0m'\v'0.2m'\s12\fRIM library\fP
+.sp -1
+\h'1.250i'\v'1.693i'\h'-0.0m'\v'0.2m'\s10\fRXFilterEvent (returns False)   \fP
+.sp -1
+\v'2.168i'\h'-0.0m'\v'0.2m'\s10\fRthe focus\fP
+.sp -1
+\h'1.250i'\h'-0.0m'\v'0.2m'\s12\fRXlib API\fP
+.sp -1
+\v'2.006i'\h'-0.0m'\v'0.2m'\s10\fRApplication moves\fP
+.sp -1
+\h'3.187i'\v'0.443i'\h'-0.0m'\v'0.2m'\s10\fRXIM_FORWARD_EVENT\fP
+.sp -1
+\h'3.187i'\v'0.881i'\h'-0.0m'\v'0.2m'\s10\fRXIM_FORWARD_EVENT\fP
+.sp -1
+\h'3.187i'\v'1.631i'\h'-0.0m'\v'0.2m'\s10\fRXIM_FORWARD_EVENT\fP
+.sp -1
+\h'3.187i'\v'1.006i'\h'-0.0m'\v'0.2m'\s10\fRor XIM_COMMIT\fP
+.sp -1
+\h'5.000i'\v'0.881i'\h'-0.0m'\v'0.2m'\s10\fRsynchronous \fP
+.sp -1
+\h'5.000i'\v'1.006i'\h'-0.0m'\v'0.2m'\s10\fRrequest\fP
+.sp -1
+\h'0.062i'\v'0.193i'\h'-0.0m'\v'0.2m'\s10\fRKey event\fP
+.sp -1
+\h'0.062i'\v'0.881i'\h'-0.0m'\v'0.2m'\s10\fRKey event\fP
+.sp -1
+\h'3.187i'\v'1.131i'\h'-0.0m'\v'0.2m'\s10\fR(synchronous)   \fP
+.sp -1
+\h'5.000i'\v'1.443i'\h'-0.0m'\v'0.2m'\s10\fRPending\fP
+.sp -1
+\h'5.000i'\v'2.381i'\h'-0.0m'\v'0.2m'\s10\fRprocessed\fP
+.sp -1
+\h'5.000i'\v'2.506i'\h'-0.0m'\v'0.2m'\s10\fR(The focused\fP
+.sp -1
+\h'5.000i'\v'2.631i'\h'-0.0m'\v'0.2m'\s10\fRIC is changed)  \fP
+.sp -1
+\h'5.000i'\v'2.881i'\h'-0.0m'\v'0.2m'\s10\fRprocessed\fP
+.sp -1
+\h'1.250i'\v'2.131i'\h'-0.0m'\v'0.2m'\s10\fRXSetICFocus\fP
+.sp -1
+\h'3.125i'\v'2.881i'\h'-0.0m'\v'0.2m'\s10\fRXIM_SYNC_REPLY as a reply\fP
+.sp -1
+\h'3.125i'\v'3.043i'\h'-0.0m'\v'0.2m'\s10\fRof the XIM_FORWARD_EVENT\fP
+.sp -1
+\h'1.250i'\v'2.881i'\h'-0.0m'\v'0.2m'\s10\fRXNextEvent\fP
+.sp -1
+\h'3.312i'\v'2.506i'\h'-0.0m'\v'0.2m'\s10\fRXIM_SET_IC_FOCUS\fP
+.sp -1
+\h'3.312i'\v'2.006i'\h'-0.0m'\v'0.2m'\s10\fRXIM_SYNC\fP
+.sp -1
+\h'3.312i'\v'2.193i'\h'-0.0m'\v'0.2m'\s10\fRXIM_SYNC_REPLY\fP
+.sp -1
+\h'5.000i'\v'3.381i'\h'-0.0m'\v'0.2m'\s10\fRprocessed\fP
+.sp -1
+.sp 1+3.408i
+.PE
+.if \n(00 .fi
+
+.\"====================== event flow figure end =======================
+.ce
+.sp
+Fig.2 Sample Protocol Flow
+.sp
+.LP
+.B
+Sample Protocol flow chart 2
+.R
+.LP
+Following chart shows one of the complex protocol flow, which deals
+with multiple focus windows and button press event as well as keyevent,
+and the focus is moved by the application triggered by both of keyevent
+and button press event.
+.LP
+.bp
+.\"====================== event2 flow figure start =====================
+\^... 0.425 5.575 6.3 10.296
+\^... 0.000i 4.721i 5.875i 0.000i
+.nr 00 \n(.u
+.nf
+.PS 4.721i 5.875i 
+.br
+.ps 11
+\h'3.125i'\v'0.496i'\D'l1.625i 0.163i'
+.sp -1
+\h'4.648i'\v'0.674i'\D'l0.102i -0.015i'
+.sp -1
+\h'4.653i'\v'0.624i'\D'l0.097i 0.035i'
+.sp -1
+\h'2.000i'\v'0.409i'\D'l1.000i 0.062i'
+.sp -1
+\h'2.899i'\v'0.490i'\D'l0.101i -0.019i'
+.sp -1
+\h'2.902i'\v'0.440i'\D'l0.098i 0.031i'
+.sp -1
+\h'0.688i'\v'0.159i'\l'0.437i'
+.sp -1
+\h'1.025i'\v'0.184i'\D'l0.100i -0.025i'
+.sp -1
+\h'1.025i'\v'0.134i'\D'l0.100i 0.025i'
+.sp -1
+\h'1.250i'\v'0.193i'\h'-0.0m'\v'0.2m'\s10\fRXNextEvent\fP
+.sp -1
+\h'1.250i'\v'0.381i'\h'-0.0m'\v'0.2m'\s10\fRXFilterEvent\fP
+.sp -1
+\h'3.187i'\v'0.443i'\h'-0.0m'\v'0.2m'\s10\fRXIM_FORWARD_EVENT\fP
+.sp -1
+\h'0.062i'\v'0.193i'\h'-0.0m'\v'0.2m'\s10\fRKey event\fP
+.sp -1
+\h'3.125i'\v'1.221i'\D'l1.687i 0.125i'
+.sp -1
+\h'4.710i'\v'1.364i'\D'l0.102i -0.018i'
+.sp -1
+\h'4.714i'\v'1.314i'\D'l0.098i 0.032i'
+.sp -1
+\h'4.750i'\v'0.971i'\D'l-1.625i 0.750i'
+.sp -1
+\h'3.205i'\v'1.656i'\D'l-0.080i 0.065i'
+.sp -1
+\h'3.226i'\v'1.702i'\D'l-0.101i 0.019i'
+.sp -1
+\h'2.000i'\v'1.034i'\D'l1.000i 0.125i'
+.sp -1
+\h'2.898i'\v'1.171i'\D'l0.102i -0.012i'
+.sp -1
+\h'2.904i'\v'1.122i'\D'l0.096i 0.037i'
+.sp -1
+\h'0.688i'\v'0.846i'\l'0.437i'
+.sp -1
+\h'1.025i'\v'0.871i'\D'l0.100i -0.025i'
+.sp -1
+\h'1.025i'\v'0.821i'\D'l0.100i 0.025i'
+.sp -1
+\h'3.000i'\v'0.034i'\v'-.13m'\L'4.687i\(br'\v'.13m'
+.sp -1
+\h'0.750i'\v'1.346i'\l'0.313i'
+.sp -1
+\h'0.963i'\v'1.371i'\D'l0.100i -0.025i'
+.sp -1
+\h'0.963i'\v'1.321i'\D'l0.100i 0.025i'
+.sp -1
+\h'3.125i'\v'1.509i'\D'l1.687i 0.125i'
+.sp -1
+\h'4.710i'\v'1.652i'\D'l0.102i -0.018i'
+.sp -1
+\h'4.714i'\v'1.602i'\D'l0.098i 0.032i'
+.sp -1
+\h'4.812i'\v'1.721i'\D'l-1.687i 0.188i'
+.sp -1
+\h'3.222i'\v'1.873i'\D'l-0.097i 0.036i'
+.sp -1
+\h'3.227i'\v'1.923i'\D'l-0.102i -0.014i'
+.sp -1
+\h'2.937i'\v'1.971i'\D'l-0.937i 0.188i'
+.sp -1
+\h'2.093i'\v'2.115i'\D'l-0.093i 0.044i'
+.sp -1
+\h'2.103i'\v'2.164i'\D'l-0.103i -0.005i'
+.sp -1
+\h'1.125i'\v'2.533i'\l'-0.500i'
+.sp -1
+\h'0.725i'\v'2.508i'\D'l-0.100i 0.025i'
+.sp -1
+\h'0.725i'\v'2.558i'\D'l-0.100i -0.025i'
+.sp -1
+\h'5.562i'\v'1.346i'\l'0.313i'
+.sp -1
+\h'5.875i'\v'1.346i'\v'-.13m'\L'2.687i\(br'\v'.13m'
+.sp -1
+\h'5.875i'\v'4.033i'\D'l-0.250i 0.000i'
+.sp -1
+\h'5.725i'\v'4.008i'\D'l-0.100i 0.025i'
+.sp -1
+\h'5.725i'\v'4.058i'\D'l-0.100i -0.025i'
+.sp -1
+\h'2.013i'\v'3.559i'\D'l0.937i 0.250i'
+.sp -1
+\h'2.847i'\v'3.807i'\D'l0.103i 0.002i'
+.sp -1
+\h'2.860i'\v'3.759i'\D'l0.090i 0.050i'
+.sp -1
+\h'3.062i'\v'3.821i'\D'l1.688i 0.188i'
+.sp -1
+\h'4.648i'\v'4.023i'\D'l0.102i -0.014i'
+.sp -1
+\h'4.653i'\v'3.973i'\D'l0.097i 0.036i'
+.sp -1
+\h'2.000i'\v'1.358i'\D'l1.000i 0.126i'
+.sp -1
+\h'2.898i'\v'1.496i'\D'l0.102i -0.012i'
+.sp -1
+\h'2.904i'\v'1.447i'\D'l0.096i 0.037i'
+.sp -1
+\h'3.062i'\v'2.159i'\D'l-0.250i 0.000i'
+.sp -1
+\h'2.812i'\v'2.159i'\v'-.13m'\L'1.812i\(br'\v'.13m'
+.sp -1
+\h'2.812i'\v'3.971i'\D'l0.125i 0.125i'
+.sp -1
+\h'2.849i'\v'4.043i'\D'l0.088i 0.053i'
+.sp -1
+\h'2.884i'\v'4.008i'\D'l0.053i 0.088i'
+.sp -1
+\h'2.062i'\v'2.783i'\l'0.875i'
+.sp -1
+\h'2.837i'\v'2.808i'\D'l0.100i -0.025i'
+.sp -1
+\h'2.837i'\v'2.758i'\D'l0.100i 0.025i'
+.sp -1
+\h'2.062i'\v'3.783i'\D'l0.813i 0.438i'
+.sp -1
+\h'2.775i'\v'4.196i'\D'l0.100i 0.025i'
+.sp -1
+\h'2.799i'\v'4.152i'\D'l0.076i 0.069i'
+.sp -1
+\h'0.625i'\v'3.533i'\l'0.438i'
+.sp -1
+\h'0.963i'\v'3.558i'\D'l0.100i -0.025i'
+.sp -1
+\h'0.963i'\v'3.508i'\D'l0.100i 0.025i'
+.sp -1
+\h'3.062i'\v'4.346i'\D'l1.625i 0.163i'
+.sp -1
+\h'4.585i'\v'4.524i'\D'l0.102i -0.015i'
+.sp -1
+\h'4.590i'\v'4.474i'\D'l0.097i 0.035i'
+.sp -1
+\h'4.875i'\v'0.034i'\v'-.13m'\L'4.687i\(br'\v'.13m'
+.sp -1
+\h'3.062i'\v'4.146i'\D'l1.688i 0.187i'
+.sp -1
+\h'4.648i'\v'4.347i'\D'l0.102i -0.014i'
+.sp -1
+\h'4.653i'\v'4.297i'\D'l0.097i 0.036i'
+.sp -1
+\h'3.062i'\v'2.871i'\D'l1.750i 0.212i'
+.sp -1
+\h'4.710i'\v'3.096i'\D'l0.102i -0.013i'
+.sp -1
+\h'4.716i'\v'3.046i'\D'l0.096i 0.037i'
+.sp -1
+\h'1.250i'\v'0.881i'\h'-0.0m'\v'0.2m'\s10\fRXNextEvent\fP
+.sp -1
+\h'1.250i'\v'1.068i'\h'-0.0m'\v'0.2m'\s10\fRXFilterEvent\fP
+.sp -1
+\h'4.875i'\h'-0.0m'\v'0.2m'\s12\fRIM Server\fP
+.sp -1
+\h'2.437i'\h'-0.0m'\v'0.2m'\s12\fRIM library\fP
+.sp -1
+\h'1.250i'\h'-0.0m'\v'0.2m'\s12\fRXlib API\fP
+.sp -1
+\h'3.187i'\v'0.881i'\h'-0.0m'\v'0.2m'\s10\fRXIM_FORWARD_EVENT\fP
+.sp -1
+\h'5.000i'\v'0.881i'\h'-0.0m'\v'0.2m'\s10\fRsynchronous \fP
+.sp -1
+\h'5.000i'\v'1.006i'\h'-0.0m'\v'0.2m'\s10\fRrequest\fP
+.sp -1
+\h'0.062i'\v'0.881i'\h'-0.0m'\v'0.2m'\s10\fRKey event\fP
+.sp -1
+\h'3.187i'\v'1.131i'\h'-0.0m'\v'0.2m'\s10\fR(synchronous)   \fP
+.sp -1
+\h'0.062i'\v'1.256i'\h'-0.0m'\v'0.2m'\s10\fRButton press causes\fP
+.sp -1
+\h'0.062i'\v'1.381i'\h'-0.0m'\v'0.2m'\s10\fRfocus change\fP
+.sp -1
+\h'1.250i'\v'1.381i'\h'-0.0m'\v'0.2m'\s10\fRXSetICFocus\fP
+.sp -1
+\h'3.250i'\v'1.006i'\h'-0.0m'\v'0.2m'\s10\fRor XIM_COMMIT\fP
+.sp -1
+\h'3.187i'\v'1.443i'\h'-0.0m'\v'0.2m'\s10\fRXIM_FORWARD_EVENT\fP
+.sp -1
+\h'3.687i'\v'1.693i'\h'-0.0m'\v'0.2m'\s10\fRXIM_SYNC\fP
+.sp -1
+\h'3.375i'\v'2.006i'\h'-0.0m'\v'0.2m'\s10\fRXIM_SYNC_REPLY\fP
+.sp -1
+\h'1.250i'\v'2.193i'\h'-0.0m'\v'0.2m'\s10\fRXNextEvent\fP
+.sp -1
+\h'1.250i'\v'2.568i'\h'-0.0m'\v'0.2m'\s10\fRXmbLookupString\fP
+.sp -1
+\h'1.250i'\v'2.381i'\h'-0.0m'\v'0.2m'\s10\fRXFilterEvent (returns False)   \fP
+.sp -1
+\v'2.856i'\h'-0.0m'\v'0.2m'\s10\fRthe focus\fP
+.sp -1
+\v'2.693i'\h'-0.0m'\v'0.2m'\s10\fRApplication moves\fP
+.sp -1
+\h'5.000i'\v'3.068i'\h'-0.0m'\v'0.2m'\s10\fRprocessed\fP
+.sp -1
+\h'5.000i'\v'3.193i'\h'-0.0m'\v'0.2m'\s10\fR(The focused\fP
+.sp -1
+\h'5.000i'\v'3.318i'\h'-0.0m'\v'0.2m'\s10\fRIC is changed)  \fP
+.sp -1
+\h'5.000i'\v'3.568i'\h'-0.0m'\v'0.2m'\s10\fRprocessed\fP
+.sp -1
+\h'3.125i'\v'3.568i'\h'-0.0m'\v'0.2m'\s10\fRXIM_SYNC_REPLY as a reply\fP
+.sp -1
+\h'3.125i'\v'3.731i'\h'-0.0m'\v'0.2m'\s10\fRof the XIM_FORWARD_EVENT\fP
+.sp -1
+\h'1.250i'\v'3.568i'\h'-0.0m'\v'0.2m'\s10\fRXNextEvent\fP
+.sp -1
+\h'5.000i'\v'4.068i'\h'-0.0m'\v'0.2m'\s10\fRprocessed\fP
+.sp -1
+\h'5.000i'\v'1.381i'\h'-0.0m'\v'0.2m'\s10\fRPending\fP
+.sp -1
+\h'5.000i'\v'4.256i'\h'-0.0m'\v'0.2m'\s10\fRprocessed\fP
+.sp -1
+\h'1.250i'\v'2.818i'\h'-0.0m'\v'0.2m'\s10\fRXSetICFocus\fP
+.sp -1
+\h'3.125i'\v'2.443i'\h'-0.0m'\v'0.2m'\s10\fRis started by XIM_COMMIT\fP
+.sp -1
+\h'3.125i'\v'2.193i'\h'-0.0m'\v'0.2m'\s10\fRXIM_SET_IC_FOCUS is\fP
+.sp -1
+\h'3.125i'\v'2.318i'\h'-0.0m'\v'0.2m'\s10\fRpend because another sync cycle\fP
+.sp -1
+\h'2.062i'\v'1.693i'\h'-0.0m'\v'0.2m'\s10\fRsync cycle is done\fP
+.sp -1
+\h'2.062i'\v'1.568i'\h'-0.0m'\v'0.2m'\s10\fRPending until\fP
+.sp -1
+\v'3.568i'\h'-0.0m'\v'0.2m'\s10\fRKey event\fP
+.sp -1
+\h'1.250i'\v'3.756i'\h'-0.0m'\v'0.2m'\s10\fRXFilterEvent\fP
+.sp -1
+\h'3.125i'\v'4.631i'\h'-0.0m'\v'0.2m'\s10\fRXIM_FORWARD_EVENT\fP
+.sp -1
+\h'3.375i'\v'4.131i'\h'-0.0m'\v'0.2m'\s10\fRXIM_SET_IC_FOCUS\fP
+.sp -1
+\h'3.250i'\v'2.818i'\h'-0.0m'\v'0.2m'\s10\fRXIM_SET_IC_FOCUS\fP
+.sp -1
+.sp 1+4.721i
+.PE
+.if \n(00 .fi
+
+.\"====================== event2 flow figure end =======================
+.ce
+.sp
+Fig.3 Sample Protocol Flow chart
+.LP
+.LP
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_FORWARD_EVENT (IM library \(<-\(-> IM Server)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:CARD16:input-context-ID
+:2:BITMASK16:flag
+::#0001:synchronous
+::#0002:request filtering (*1)
+::#0004:request lookupstring (*2)
+:2:CARD16:serial number
+::XEVENT:X event
+.TE
+.LP
+.IP (*1)
+Indicate the receiver should filter events and possible preedit may be invoked.
+.IP (*2)
+Indicate the receiver should only do lookup string. The IM Server is expected
+to just do a conversion of the key event to the best candidate. This bit may
+affect the state of the preedit state (e.g. compose of dead key sequences).
+.RE
+.LP
+XEVENT format is same as the X Protocol event format(xEvent).
+As the value of xEvent's sequenceNumber is the bottom of 16 bit of XEvent's 
+xany.serial, the top of 16 bit is sent by serial number(INT16).
+.LP
+.PN XIM_FORWARD_EVENT
+message is used for forwarding the events from the IM library to the IM Server 
+in order for IM to be able to filter the event. On the other hand, this 
+message is also used for forwarding the events from the IM Server to the IM 
+library if the event forwarded from the IM library is not filtered. 
+The IM Server, which receives 
+.PN XIM_FORWARD_EVENT
+message without synchronous bit, should set synchronous bit.
+If both ``request event filtering'' and ``request lookupstring'' flag are
+set, then both filtering and lookup should be done for the same event.
+.LP
+.NH 2
+Synchronizing with the IM Server
+.XS
+\*(SN Synchronizing with the IM Server
+.XE
+.LP
+.PN XIM_SYNC
+message requests to synchronize the IM library and the IM Server. 
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_SYNC (IM library \(<-\(-> IM Server)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:CARD16:input-context-ID
+.TE
+.RE
+.LP
+This synchronization can be started either on the IM library side or on the 
+IM Server side.  The side which receives 
+.PN XIM_SYNC
+message should process all XIM requests before replying. The input-context-ID 
+is necessary to distinguish the IC with which the IM library and the IM 
+Server are synchronized.
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_SYNC_REPLY (IM Server \(<-\(-> IM library)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:CARD16:input-context-ID
+.TE
+.RE
+.LP
+The side which receives 
+.PN XIM_FORWARD_EVENT, 
+.PN XIM_COMMIT
+or any other message with synchronous bit, should process all XIM request 
+before replying, and send 
+.PN XIM_SYNC_REPLY
+message as the reply to the previous message. 
+.LP
+.NH 2
+Sending a committed string
+.XS
+\*(SN Sending a committed string
+.XE
+.LP
+When the IM Server commits a string, the IM Server sends either the committed 
+string or list of KeySym, or both, by 
+.PN XIM_COMMIT
+message.
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_COMMIT (IM Server \(-> IM library)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:CARD16:input-context-ID
+:2:BITMASK16:flag
+::#0001:synchronous
+::#0002:XLookupChars
+::#0004:XLookupKeySym
+::#0006: XLookupBoth = XLookupChars | XLookupKeySym
+.TE
+.LP
+If flag is XLookupKeySym, the arguments continue as follows:
+.TS
+tab(:);
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+:2::unused
+:4:KEYSYM:KeySym
+.TE
+.LP
+If flag is XLookupChars, the arguments continue as follows:
+.TS
+tab(:);
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+:2:m:byte length of committed string
+:m:LISTofBYTE:committed string
+:p::unused, p = Pad(m)
+.TE
+.LP
+If flag is XLookupBoth, the arguments continue as follows:
+.TS
+tab(:);
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+:2::unused
+:4:KEYSYM:KeySym
+:2:n:byte length of committed string
+:n:LISTofBYTE:committed string
+:p::unused, p = Pad(2+n)
+.TE
+.RE
+.LP
+The IM Server which receives 
+.PN XIM_COMMIT
+message without synchronous bit should set synchronous bit.
+.LP
+.NH 2
+Reset IC
+.XS
+\*(SN Reset IC
+.XE
+.LP
+.PN XIM_RESET_IC
+message requests to reset the status of IC in the IM Server. 
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_RESET_IC (IM library \(-> IM Server)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:CARD16:input-context-ID
+.TE
+.RE
+.LP
+.PN XIM_RESET_IC
+is a synchronous request. The IM library should wait until receiving either an 
+.PN XIM_RESET_IC_REPLY
+packet or an 
+.PN XIM_ERROR
+packet.
+.LP
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_RESET_IC_REPLY (IM Server \(-> IM library)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:CARD16:input-context-ID
+:2:n:byte length of preedit string
+:n:LISTofBYTE:preedit string
+:p::unused, p = Pad(2+n)
+.TE
+.RE
+.LP
+.PN XIM_RESET_IC_REPLY 
+message returns the input-context-ID to distinguish replies from multiple ICs.
+.LP
+.\"============================== Callbacks ===============================
+.NH 2
+Callbacks
+.XS
+\*(SN Callbacks
+.XE
+.LP
+If XIMStyle has XIMPreeditArea or XIMStatusArea set, XIMGeometryCallback 
+may be used, and if XIMPreeditCallback and/or XIMStatusCallback are set,
+corresponding callbacks may be used.
+.LP
+Any callback request may be sent from an IM Server to an IM client 
+asynchronously in response to any request previously sent by the IM client 
+to the IM Server.
+.LP
+When an IM Server needs to send a callback request synchronously with
+the request previously sent by an IM client, the IM Server sends it
+before replying to the previous request.
+.LP
+.NH 3
+Negotiating geometry
+.XS
+\*(SN Negotiating geometry
+.XE
+.LP
+The IM Server sends
+.PN XIM_GEOMETRY 
+message to start geometry negotiation, if XIMStyle has XIMPreeditArea or 
+XIMStatusArea set.  
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_GEOMETRY (IM Server \(-> IM library)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:CARD16:input-context-ID
+.TE
+.RE
+.LP
+There is always a single Focus Window, even if some input fields have only 
+one IC.
+.LP
+.NH 3
+Converting a string
+.XS
+\*(SN Converting a string
+.XE
+.LP
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_STR_CONVERSION (IM Server \(-> IM library)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:CARD16:input-context-ID
+:2:CARD16:XIMStringConversionPosition
+:2::unused
+:4:CARD32:XIMCaretDirection
+::#0:XIMForwardChar
+::#1:XIMBackwardChar
+::#2:XIMForwardWord
+::#3:XIMBackwardWord
+::#4:XIMCaretUp
+::#5:XIMCaretDown
+::#6:XIMNextLine
+::#7:XIMCPreviousLine
+::#8:XIMLineStart
+::#9:XIMLineEnd
+::#10:XIMAbsolutePosition
+::#11:XIMDontChange
+:2:CARD16:factor
+:2:CARD16:XIMStringConversionOperation
+::#0001:XIMStringConversionSubstitution
+::#0002:XIMStringConversionRetrieval
+:2:INT16:T{
+byte length to multiply the XIMStringConversionType
+T}
+.TE
+.RE
+.sp
+.LP
+.PN XIM_STR_CONVERSION 
+message may be used to start the string conversion from the IM 
+Server.
+.LP
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_STR_CONVERSION_REPLY (IM library \(-> IM Server)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:CARD16:input-context-ID
+:4:CARD32:XIMStringConversionFeedback
+::XIMSTRCONVTEXT:XIMStringConversionText
+.sp
+.TE
+.RE
+.LP
+.PN XIM_STR_CONVERSION_REPLY 
+message returns the string to be converted and the feedback information array.
+.LP
+.NH 3
+Preedit Callbacks
+.XS
+\*(SN Preedit Callbacks
+.XE
+.LP
+The IM Server sends
+.PN XIM_PREEDIT_START 
+message to call the XIMPreeditStartCallback function.
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_PREEDIT_START (IM Server \(-> IM library)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:CARD16:input-context-ID
+.TE
+.RE
+.LP
+The reply to this message must be sent synchronously. The reply forwards 
+the return value from the callback function to the IM Server.
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_PREEDIT_START_REPLY (IM library \(-> IM Server)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:CARD16:input-context-ID
+:4:INT32:return value
+.TE
+.RE
+.LP
+.PN XIM_PREEDIT_START_REPLY
+message returns the input-context-ID to distinguish replies from multiple 
+IC's.  The return value contains the return value of the function 
+XIMPreeditStartCallback.
+.LP
+The IM Server sends
+.PN XIM_PREEDIT_DRAW 
+message to call the XIMPreeditDrawCallback function.
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_PREEDIT_DRAW (IM Server \(-> IM library)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:CARD16:input-context-ID
+:4:INT32:caret
+:4:INT32:chg_first
+:4:INT32:chg_length
+:4:BITMASK32:status
+::#x0000001:no string
+::#x0000002:no feedback
+:2:n:length of preedit string
+:n:STRING8:preedit string
+:p::unused, p = Pad(2+n)
+:2:m:byte length of feedback array
+:2::unused
+:m:LISTofXIMFEEDBACK:feedback array
+.TE
+.RE
+.LP
+The fields ``caret'', ``chg_first'' and ``chg_length'' correspond to the 
+fields of XIMPreeditDrawCallbackStruct.
+When the ``no string'' bit of the status field is set, the text field of 
+XIMPreeditDrawCallbackStruct is NULL.
+When the ``no feedback'' bit of the status field is set, the text feedback 
+field of XIMPreeditDrawCallbackStruct is NULL.
+When the above bits are not set, ``preedit string'' contains the preedit 
+string to be displayed, and the feedback array contains feedback information.
+.LP
+The IM Server sends
+.PN XIM_PREEDIT_CARET 
+message to call the PreeditCaretCallback function.  
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_PREEDIT_CARET (IM Server \(-> IM library)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:CARD16:input-context-ID
+:4:INT32:position
+:4:CARD32:direction
+::#0:XIMForwardChar
+::#1:XIMBackwardChar
+::#2:XIMForwardWord
+::#3:XIMBackwardWord
+::#4:XIMCaretUp
+::#5:XIMCaretDown
+::#6:XIMNextLine
+::#7:XIMCPreviousLine
+::#8:XIMLineStart
+::#9:XIMLineEnd
+::#10:XIMAbsolutePosition
+::#11:XIMDontChange
+:4:CARD32:style
+::#0:XIMInvisible
+::#1:XIMCPrimary
+::#2:XIMSecondary
+.TE
+.RE
+.LP
+Each entry corresponds to a field of XIMPreeditCaretCallbackStruct. 
+Since this callback sets the caret position, its reply must be sent 
+synchronously.
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_PREEDIT_CARET_REPLY (IM library \(-> IM Server)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:CARD16:input-context-ID
+:4:CARD32:position
+.TE
+.RE
+.LP
+The position is the value returned by the callback function after it
+has been called.
+.LP
+The IM Server sends
+.PN XIM_PREEDIT_DONE 
+message to call the XIMPreeditDoneCallback function.
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_PREEDIT_DONE (IM Server \(-> IM library)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:CARD16:input-context-ID
+.TE
+.RE
+.LP
+.NH 3
+Preedit state notify
+.XS
+\*(SN Preedit state notify
+.XE
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_PREEDITSTATE (IM Server \(-> IM Library)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:CARD16:input-context-ID
+:4:BITMASK32:XIMPreeditState
+::#x0000000:XIMPreeditUnknown
+::#x0000001:XIMPreeditEnable
+::#x0000002:XIMPreeditDisable
+.TE
+.sp
+.TE
+.RE
+.LP
+.PN XIM_PREEDITSTATE
+message is used to call the XIMPreeditStateNotifyCallback function.
+.LP
+.NH 3
+Status Callbacks
+.XS
+\*(SN Status Callbacks
+.XE
+.LP
+The IM Server sends
+.PN XIM_STATUS_START 
+message to call the XIMStatusStartCallback function.
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_STATUS_START (IM Server \(-> IM library)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:CARD16:input-context-ID
+.TE
+.RE
+.LP
+The IM Server sends
+.PN XIM_STATUS_DRAW 
+message to call the XIMStatusDrawCallback function.
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_STATUS_DRAW (IM Server \(-> IM library)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:CARD16:input-context-ID
+:4:CARD32:type
+::#0:XIMTextType
+::#1:XIMBitmapType
+.TE
+.LP
+If type is XIMTextType, the arguments continue as follows.
+.TS
+tab(:);
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+:4:BITMASK32:status
+::#x0000001:no string
+::#x0000002:no feedback
+:2:n:length of status string
+:n:STRING8:status string
+:p::unused, p = Pad(2+n)
+:2:m:byte length of feedback array
+:2::unused
+:m:LISTofXIMFEEDBACK:feedback array
+.TE
+.LP
+If type is XIMBitmapType, the arguments continue as follows.
+.TS
+tab(:);
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+:4:PIXMAP:pixmap data
+.TE
+.RE
+.LP
+The field ``type'' corresponds to the field in XIMStatusDrawCallbackStruct.
+.LP
+The IM Server sends
+.PN XIM_STATUS_DONE 
+message to call the XIMStatusDoneCallback function.
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_STATUS_DONE (IM Server \(-> IM library)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:CARD16:input-context-ID
+.TE
+.RE
+.LP
+.bp
+.NH 1
+Acknowledgements
+.XS
+\*(SN Acknowledgements
+.XE
+.LP
+This document represents the culmination of several years of debate and
+experiments done under the auspices of the MIT X Consortium i18n working 
+group.  Although this was a group effort, the author remains responsible 
+for any errors or omissions.
+.LP
+We would like to thank to all members of this group.
+And we would like to make special thanks to the following people 
+(in alphabetical order) for their participation in the IM Protocol 
+design,
+Hector Chan, Takashi Fujiwara, Yoshio Horiuchi, Makoto Inada, 
+Hiromu Inukai, Mickael Kung, Seiji Kuwari, Franky Ling, Hiroyuki Machida, 
+Hiroyuki Miyamoto, Frank Rojas, Bob Scheifler, Makiko Shimamura, 
+Shoji Sugiyama, Hidetoshi Tajima, Masaki Takeuchi, Makoto Wakamatsu, 
+Masaki Wakao, Nobuyuki Tanaka, Shigeru Yamada, Katsuhisa Yano, Jinsoo Yoon.
+.LP
+.NH 1
+References
+.XS
+\*(SN References
+.XE
+.LP
+All of the following documents are X Consortium standards available from MIT:
+.LP
+[1] Scheifler, Robert W., \fI``X Window System Protocol Version 11''\fP
+.LP
+[2] Scheifler, Robert W. etc., \fI``Xlib \- C Language X Interface''\fP
+.LP
+.bp
+.XS
+Appendix A \- Common Extensions
+.XE
+.ce 10
+.sp 5
+\s+2\fBAppendix A\fP\s-2
+.sp
+\s+1\fBCommon Extensions\fP\s-1
+.ce 0
+.sp
+.LP
+Extension opcodes and packet names (e.g. 
+.PN XIM_EXT_SET_EVENT_MASK
+) for additional extensions may be registered with X Consortium.
+The following is a commonly well-known extended packet.
+.LP
+.LP
+.IP \fB(1)
+Extension to manipulate the event handling\fP 
+.LP
+.PN XIM_EXT_SET_EVENT_MASK 
+message specifies the set of event masks that the IM library should manipulate.
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_EXT_SET_EVENT_MASK (IM Server \(-> IM library)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:CARD16:input-context-ID
+:4:EVENTMASK:filter-event-mask (*1)
+:4:EVENTMASK:intercept-event-mask (*2)
+:4:EVENTMASK:select-event-mask (*3)
+:4:EVENTMASK:forward-event-mask (*4)
+:4:EVENTMASK:synchronous-event-mask (*5)
+.TE
+.IP (*1)
+Specify the events to be neglected by the IM library via XFilterEvent.
+.IP (*2)
+Specify the events to be deselected by the IM library with XSelectInput.
+.IP (*3)
+Specify the events to be selected by the IM library with XSelectInput.
+.IP (*4)
+Specify all the events to be forwarded to the IM Server by the IM library.
+.IP (*5)
+Specify the events to be forwarded with synchronous flag on by the IM library.
+.RE
+.LP
+The IM library must reply 
+.PN XIM_SYNC_REPLY
+message to the IM Server. This request is valid after the ic is created.
+.LP
+.sp
+.IP \fB(2)
+Extension for improvement of performance\fR
+.LP
+The following requests may be used for improvement of performance.
+.LP
+.PN XIM_EXT_FORWARD_KEYEVENT
+message may be used instead of 
+.PN XIM_FORWARD_EVENT
+message.
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_EXT_FORWARD_KEYEVENT (IM Server \(<-\(-> IM library)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:CARD16:input-context-ID
+:2:BITMASK16:flag
+::#0001:synchronous
+:2:CARD16:sequence number
+:1:BYTE:xEvent.u.u.type
+:1:BYTE:keycode
+:2:CARD16:state
+:4:CARD32:time
+:4:CARD32:window
+.TE
+.RE
+.LP
+.bp
+.PN XIM_EXT_MOVE
+message may be used to change the spot location instead of
+.PN
+XIM_SET_IC_VALUES
+message.
+It is effective only if the client specified XIMPreeditPosition.
+.RS
+.TS
+tab(:);
+lfB s s s
+lw(.25i) lw(.25i) lw(1.75i) lw(3.5i).
+XIM_EXT_MOVE (IM library \(-> IM Server)
+.sp 6p
+:2:CARD16:input-method-ID
+:2:CARD16:input-context-ID
+:2:INT16:X
+:2:INT16:Y
+.TE
+.RE
+.LP
+.PN XIM_EXT_MOVE
+message is a asynchronous request.  
+.LP
+.bp
+.XS
+Appendix B \- The list of transport specific IM Server names registered
+.XE
+.ce 10
+.sp 5
+\s+2\fBAppendix B\fP\s-2
+.sp
+\s+1\fBThe list of transport specific IM Server address format registered\fP\s-1
+.ce 0
+.sp
+.LP
+The following format represents the ATOM contained in
+.PN XIM_SERVERS
+property and the string returned from the request converting 
+selection target LOCALES and TRANSPORT.
+.DS 
+	``{@\^\fIcategory\fP\^=[\^\fIvalue\fP,...]}...''
+.DE
+.LP
+The following categories are currently registered.
+.RS
+.TS
+tab(;);
+l l.
+\fBserver\fP;: IM Server name (used for XIM_SERVERS)
+\fBlocale\fP;: XPG4 locale name (LOCALES)
+\fBtransport\fP;: transport-specific name (TRANSPORT)
+.TE
+.RE
+.LP
+The preregistered formats for transport-specific names are as follows:
+.RS
+.LP
+\fBTCP/IP Names\fP
+.LP
+.RS
+The following syntax should be used for system internal domain names:
+.DS
+<\fIlocal name\fP>  ::= ``local/''<\fIhostname\fP>``:''<\fIpathname\fP>
+.DE
+.LP
+Where <\fIpathname\fP> is a path name of socket address.
+.LP
+IM Server's name should be set to <\fIpathname\fP> to run multiple IM Server 
+at the same time
+.LP
+The following syntax should be used for Internet domain names:
+.DS
+<\fITCP name\fP>  ::=  ``tcp/''<\fIhostname\fP>``:''<\fIipportnumber\fP>
+.DE
+where <\fIhostname\fP> is either symbolic (such as expo.lcs.mit.edu) or 
+numeric decimal (such as 18.30.0.212).  The <\fIipportnumber\fP> is the 
+port on which the IM Server is listening for connections.  
+For example:
+.DS
+tcp/expo.lcs.mit.edu:8012
+tcp/18.30.0.212:7890
+.DE
+.RE
+.LP
+\fBDECnet Names\fP
+.LP
+.RS
+The following syntax should be used for DECnet names:
+.DS
+<\fIDECnet name\fP>  ::=  ``decnet/''<\fInodename\fP>``::IMSERVER$''<\fIobjname\fP>
+.DE
+where <\fInodename\fP> is either symbolic (such as SRVNOD) or the numeric 
+decimal form of the DECnet address (such as 44.70).  The <\fIobjname\fP> 
+is normal, case-insensitive DECnet object name. For example:
+.DS
+DECNET/SRVNOD::IMSERVER$DEFAULT
+decnet/44.70::IMSERVER$other
+.DE
+.RE
+.LP
+\fBX Names\fP
+.LP
+.RS
+The following syntax should be used for X names:
+.DS
+<\fIX name\fP>  ::=  ``X/''
+.DE
+.RE
+.RE
+.LP
+If a given category has multiple values, the value is evaluated in order of
+setting.
+.bp
+.XS
+Appendix C \- Protocol number
+.XE
+.ce 10
+.sp 5
+\s+2\fBAppendix C\fP\s-2
+.sp
+\s+1\fBProtocol number\fP\s-1
+.ce 0
+.sp
+.LP
+\fBMajor Protocol number\fP
+.TS
+center, tab(:);
+lw(9c) l.
+XIM_CONNECT:#001
+XIM_CONNECT_REPLY:#002
+XIM_DISCONNECT:#003
+XIM_DISCONNECT_REPLY:#004
+
+XIM_AUTH_REQUIRED:#010
+XIM_AUTH_REPLY:#011
+XIM_AUTH_NEXT:#012
+XIM_AUTH_SETUP:#013
+XIM_AUTH_NG:#014
+
+XIM_ERROR:#020
+
+XIM_OPEN:#030
+XIM_OPEN_REPLY:#031
+XIM_CLOSE:#032
+XIM_CLOSE_REPLY:#033
+XIM_REGISTER_TRIGGERKEYS:#034
+XIM_TRIGGER_NOTIFY:#035
+XIM_TRIGGER_NOTIFY_REPLY:#036
+XIM_SET_EVENT_MASK:#037
+XIM_ENCODING_NEGOTIATION:#038
+XIM_ENCODING_NEGOTIATION_REPLY:#039
+XIM_QUERY_EXTENSION:#040
+XIM_QUERY_EXTENSION_REPLY:#041
+XIM_SET_IM_VALUES:#042
+XIM_SET_IM_VALUES_REPLY:#043
+XIM_GET_IM_VALUES:#044
+XIM_GET_IM_VALUES_REPLY:#045
+
+XIM_CREATE_IC:#050
+XIM_CREATE_IC_REPLY:#051
+XIM_DESTROY_IC:#052
+XIM_DESTROY_IC_REPLY:#053
+XIM_SET_IC_VALUES:#054
+XIM_SET_IC_VALUES_REPLY:#055
+XIM_GET_IC_VALUES:#056
+XIM_GET_IC_VALUES_REPLY:#057
+XIM_SET_IC_FOCUS:#058
+XIM_UNSET_IC_FOCUS:#059
+XIM_FORWARD_EVENT:#060
+XIM_SYNC:#061
+XIM_SYNC_REPLY:#062
+XIM_COMMIT:#063
+XIM_RESET_IC:#064
+XIM_RESET_IC_REPLY:#065
+
+XIM_GEOMETRY:#070
+XIM_STR_CONVERSION:#071
+XIM_STR_CONVERSION_REPLY:#072
+XIM_PREEDIT_START:#073
+XIM_PREEDIT_START_REPLY:#074
+XIM_PREEDIT_DRAW:#075
+XIM_PREEDIT_CARET:#076
+XIM_PREEDIT_CARET_REPLY:#077
+XIM_PREEDIT_DONE:#078
+XIM_STATUS_START:#079
+XIM_STATUS_DRAW:#080
+XIM_STATUS_DONE:#081
+XIM_PREEDITSTATE:#082
+.TE
+.sp
+(*) The IM Server's extension protocol number should be more than #128.
+.bp
+.XS
+Appendix D \- Implementation Tips
+.XE
+.ce 10
+.sp 5
+\s+2\fBAppendix D\fP\s-2
+.sp
+\s+1\fBImplementation Tips\fP\s-1
+.ce 0
+.sp
+.LP
+.B
+.IP \fB(1)
+FrontEnd Method\fP
+.LP
+FrontEnd method is recognized as a performance acceleration by the
+trade off of the variety of the reliability.
+.LP
+In order to use the FrontEnd method, the IM library must query the IM
+Server to see if the FrontEnd extension is available.  The query is
+made by using the 
+.PN XIM_QUERY_EXTENSION
+message. The IM Server may send 
+.PN XIM_EXT_SET_EVENT_MASK
+message with intercept-event-mask, forward-event-mask, and 
+synchronous-event-mask values set after replying 
+.PN XIM_QUERY_EXTENSION_REPLY
+message.  
+.LP
+FrontEnd method can be implemented in a couple of ways depending on
+how the IM Server utilize 
+.PN XIM_EXT_SET_EVENT_MASK
+message.
+.LP
+One approach is to update both of the input mask and the filter-event-mask 
+depending on the preeidting state. The sample protocol sequence using the 
+static event flow is as follows:
+.LP
+.\"===================================================================
+.sp
+\^... 1.675 6.888 6.237 10.296
+\^... 0.000i 3.408i 4.562i 0.000i
+.nr 00 \n(.u
+.nf
+.PS 3.408i 4.562i 
+.br
+.ps 11
+\h'3.750i'\v'0.034i'\v'-.13m'\L'3.374i\(br'\v'.13m'
+.sp -1
+\h'3.912i'\v'1.384i'\D'l-0.100i 0.025i'
+.sp -1
+\h'3.912i'\v'1.434i'\D'l-0.100i -0.025i'
+.sp -1
+\h'3.812i'\v'1.409i'\l'0.750i'
+.sp -1
+\h'3.750i'\h'-0.0m'\v'0.2m'\s12\fRIM Server\fP
+.sp -1
+\h'3.812i'\v'0.818i'\h'-0.0m'\v'0.2m'\s10\fRevent mask is changed\fP
+.sp -1
+\h'3.812i'\v'1.006i'\h'-0.0m'\v'0.2m'\s10\fRto select the event\fP
+.sp -1
+\h'3.875i'\v'2.381i'\h'-0.0m'\v'0.2m'\s10\fRevent mask is changed\fP
+.sp -1
+\h'3.875i'\v'2.568i'\h'-0.0m'\v'0.2m'\s10\fRto deselect the event\fP
+.sp -1
+\h'3.875i'\v'1.631i'\h'-0.0m'\v'0.2m'\s10\fRX events directly come\fP
+.sp -1
+\h'3.875i'\v'1.756i'\h'-0.0m'\v'0.2m'\s10\fRto the IM Server.\fP
+.sp -1
+\h'3.875i'\v'2.006i'\h'-0.0m'\v'0.2m'\s10\fRwhen preediting is turning off\fP
+.sp -1
+\h'0.625i'\v'0.284i'\l'0.875i'
+.sp -1
+\h'1.400i'\v'0.309i'\D'l0.100i -0.025i'
+.sp -1
+\h'1.400i'\v'0.259i'\D'l0.100i 0.025i'
+.sp -1
+\h'1.750i'\v'0.346i'\l'1.687i'
+.sp -1
+\h'3.337i'\v'0.371i'\D'l0.100i -0.025i'
+.sp -1
+\h'3.337i'\v'0.321i'\D'l0.100i 0.025i'
+.sp -1
+\h'1.850i'\v'2.134i'\D'l-0.100i 0.025i'
+.sp -1
+\h'1.850i'\v'2.184i'\D'l-0.100i -0.025i'
+.sp -1
+\h'1.750i'\v'2.159i'\l'1.687i'
+.sp -1
+\h'1.562i'\v'0.034i'\v'-.13m'\L'3.374i\(br'\v'.13m'
+.sp -1
+\h'1.850i'\v'0.446i'\D'l-0.100i 0.025i'
+.sp -1
+\h'1.850i'\v'0.496i'\D'l-0.100i -0.025i'
+.sp -1
+\h'1.750i'\v'0.471i'\l'1.687i'
+.sp -1
+\h'1.687i'\v'0.631i'\h'-0.0m'\v'0.2m'\s10\fRXIM_EXT_SET_EVENT_MASK\fP
+.sp -1
+\h'1.875i'\v'0.818i'\h'-0.0m'\v'0.2m'\s10\fRintercept-event-mask is set\fP
+.sp -1
+\h'1.687i'\v'2.318i'\h'-0.0m'\v'0.2m'\s10\fRXIM_EXT_SET_EVENT_MASK\fP
+.sp -1
+\h'1.875i'\v'2.443i'\h'-0.0m'\v'0.2m'\s10\fRselect-event-mask is set\fP
+.sp -1
+\h'0.937i'\h'-0.0m'\v'0.2m'\s12\fRIM library\fP
+.sp -1
+\v'0.193i'\h'-0.0m'\v'0.2m'\s10\fRKeys in the on-key-list\fP
+.sp -1
+\h'0.250i'\v'2.318i'\h'-0.0m'\v'0.2m'\s10\fRevent mask is changed\fP
+.sp -1
+\h'0.250i'\v'2.506i'\h'-0.0m'\v'0.2m'\s10\fRto select the event\fP
+.sp -1
+\h'0.250i'\v'1.006i'\h'-0.0m'\v'0.2m'\s10\fRto deselect the event\fP
+.sp -1
+\h'0.250i'\v'0.818i'\h'-0.0m'\v'0.2m'\s10\fRevent mask is changed\fP
+.sp -1
+\h'1.812i'\v'0.256i'\h'-0.0m'\v'0.2m'\s10\fRXIM_FORWARD_EVENT\fP
+.sp -1
+.sp 1+3.408i
+.PE
+.if \n(00 .fi
+.sp
+.\"===================================================================
+.LP
+To pursuit a maximum performance regardless of the preediting mode,
+the IM Server may use the dynamic event flow with the following 
+sample protocol sequence.
+.bp
+.LP
+.\"===================================================================
+\^... 1.675 6.888 6.237 10.296
+\^... 0.000i 3.408i 4.562i 0.000i
+.nr 00 \n(.u
+.nf
+.PS 3.408i 4.562i 
+.br
+.ps 11
+\h'3.750i'\v'0.034i'\v'-.13m'\L'3.374i\(br'\v'.13m'
+.sp -1
+\h'3.912i'\v'1.384i'\D'l-0.100i 0.025i'
+.sp -1
+\h'3.912i'\v'1.434i'\D'l-0.100i -0.025i'
+.sp -1
+\h'3.812i'\v'1.409i'\l'0.750i'
+.sp -1
+\h'3.750i'\h'-0.0m'\v'0.2m'\s12\fRIM Server\fP
+.sp -1
+\h'3.812i'\v'0.818i'\h'-0.0m'\v'0.2m'\s10\fRevent mask is changed\fP
+.sp -1
+\h'3.812i'\v'1.006i'\h'-0.0m'\v'0.2m'\s10\fRto select the event\fP
+.sp -1
+\h'3.875i'\v'2.381i'\h'-0.0m'\v'0.2m'\s10\fRevent mask is changed\fP
+.sp -1
+\h'3.875i'\v'2.568i'\h'-0.0m'\v'0.2m'\s10\fRto deselect the event\fP
+.sp -1
+\h'3.875i'\v'1.631i'\h'-0.0m'\v'0.2m'\s10\fRX events directly come\fP
+.sp -1
+\h'3.875i'\v'1.756i'\h'-0.0m'\v'0.2m'\s10\fRto the IM Server.\fP
+.sp -1
+\h'3.875i'\v'2.006i'\h'-0.0m'\v'0.2m'\s10\fRwhen preediting is turning off\fP
+.sp -1
+\h'0.625i'\v'0.284i'\l'0.875i'
+.sp -1
+\h'1.400i'\v'0.309i'\D'l0.100i -0.025i'
+.sp -1
+\h'1.400i'\v'0.259i'\D'l0.100i 0.025i'
+.sp -1
+\h'1.750i'\v'0.346i'\l'1.687i'
+.sp -1
+\h'3.337i'\v'0.371i'\D'l0.100i -0.025i'
+.sp -1
+\h'3.337i'\v'0.321i'\D'l0.100i 0.025i'
+.sp -1
+\h'1.850i'\v'1.196i'\D'l-0.100i 0.025i'
+.sp -1
+\h'1.850i'\v'1.246i'\D'l-0.100i -0.025i'
+.sp -1
+\h'1.750i'\v'1.221i'\l'1.687i'
+.sp -1
+\h'1.850i'\v'2.134i'\D'l-0.100i 0.025i'
+.sp -1
+\h'1.850i'\v'2.184i'\D'l-0.100i -0.025i'
+.sp -1
+\h'1.750i'\v'2.159i'\l'1.687i'
+.sp -1
+\h'1.562i'\v'0.034i'\v'-.13m'\L'3.374i\(br'\v'.13m'
+.sp -1
+\h'1.850i'\v'0.446i'\D'l-0.100i 0.025i'
+.sp -1
+\h'1.850i'\v'0.496i'\D'l-0.100i -0.025i'
+.sp -1
+\h'1.750i'\v'0.471i'\l'1.687i'
+.sp -1
+\h'1.812i'\v'0.256i'\h'-0.0m'\v'0.2m'\s10\fRXIM_TRIGGER_NOTIFY\fP
+.sp -1
+\h'1.687i'\v'1.068i'\h'-0.0m'\v'0.2m'\s10\fRXIM_TRIGGER_NOTIFY_REPLY\fP
+.sp -1
+\h'1.687i'\v'0.631i'\h'-0.0m'\v'0.2m'\s10\fRXIM_EXT_SET_EVENT_MASK\fP
+.sp -1
+\h'1.875i'\v'0.818i'\h'-0.0m'\v'0.2m'\s10\fRintercept-event-mask is set\fP
+.sp -1
+\h'1.687i'\v'2.318i'\h'-0.0m'\v'0.2m'\s10\fRXIM_EXT_SET_EVENT_MASK\fP
+.sp -1
+\h'1.875i'\v'2.443i'\h'-0.0m'\v'0.2m'\s10\fRselect-event-mask is set\fP
+.sp -1
+\h'0.937i'\h'-0.0m'\v'0.2m'\s12\fRIM library\fP
+.sp -1
+\v'0.193i'\h'-0.0m'\v'0.2m'\s10\fRKeys in the on-key-list\fP
+.sp -1
+\h'0.250i'\v'2.318i'\h'-0.0m'\v'0.2m'\s10\fRevent mask is changed\fP
+.sp -1
+\h'0.250i'\v'2.506i'\h'-0.0m'\v'0.2m'\s10\fRto select the event\fP
+.sp -1
+\h'0.250i'\v'1.006i'\h'-0.0m'\v'0.2m'\s10\fRto deselect the event\fP
+.sp -1
+\h'0.250i'\v'0.818i'\h'-0.0m'\v'0.2m'\s10\fRevent mask is changed\fP
+.sp -1
+.sp 1+3.408i
+.PE
+.if \n(00 .fi
+.\"===================================================================
+.LP
+This method can reduce the XIM protocol traffic dramatically
+by updating intercept-event-mask and select-event-mask accordingly.
+The tradeoff of this performance improvement is that the key
+events may be lost or disordered in some particular situation, such as
+when the user types the keyboard in following sequence really fast:
+.sp 6p 
+.RS
+<preediting on key>``some strings''<preediting off key>``another string''
+.RE
+.sp  6p
+Since this method requires the input mask updates to the both the IM Server 
+and Xlib when turning on and off the preediting, and there is a time lag 
+till the requests take effect when two client issues the input mask updates
+simultaneously.
+.LP
+Another approach of the FrontEnd method is to update the filter-event-mask
+depending on the preediting state and not to update the input mask.
+The IM Server must register both of the preediting on key list and off key 
+list by 
+.PN XIM_REGISTER_TRIGGERKEYS
+message.
+In this method, Both the IM Server and the IM client select the same
+events on the same client's window, so that the events are delivered
+to both of the IM Server and the client. The preediting on and off 
+states are expressed by whether the key events are filtered or not.
+The sample protocol sequence are as follows:
+.LP
+.bp
+<<Using static event flow>>
+.LP
+.\"====================================================================
+.sp
+\^... 1.488 7.325 6.487 10.358
+\^... 0.000i 3.033i 4.999i 0.000i
+.nr 00 \n(.u
+.nf
+.PS 3.033i 4.999i 
+.br
+.ps 11
+\h'4.099i'\v'0.383i'\D'l-0.100i 0.025i'
+.sp -1
+\h'4.099i'\v'0.433i'\D'l-0.100i -0.025i'
+.sp -1
+\h'3.999i'\v'0.408i'\l'1.000i'
+.sp -1
+\h'4.099i'\v'1.696i'\D'l-0.100i 0.025i'
+.sp -1
+\h'4.099i'\v'1.746i'\D'l-0.100i -0.025i'
+.sp -1
+\h'3.999i'\v'1.721i'\l'1.000i'
+.sp -1
+\h'3.937i'\v'0.096i'\v'-.13m'\L'2.937i\(br'\v'.13m'
+.sp -1
+\h'3.937i'\v'0.062i'\h'-0.0m'\v'0.2m'\s12\fRIM Server\fP
+.sp -1
+\h'4.062i'\v'0.755i'\h'-0.0m'\v'0.2m'\s10\fRthe specified events\fP
+.sp -1
+\h'4.062i'\v'0.943i'\h'-0.0m'\v'0.2m'\s10\fRare being processed\fP
+.sp -1
+\h'4.062i'\v'2.255i'\h'-0.0m'\v'0.2m'\s10\fRthe specified events\fP
+.sp -1
+\h'4.062i'\v'2.443i'\h'-0.0m'\v'0.2m'\s10\fRare being discarded\fP
+.sp -1
+\h'4.249i'\v'1.568i'\h'-0.0m'\v'0.2m'\s10\fRKeys in the off-key-list\fP
+.sp -1
+\h'4.187i'\v'0.318i'\h'-0.0m'\v'0.2m'\s10\fRKeys in the on-key-list\fP
+.sp -1
+\h'0.812i'\v'0.346i'\l'0.875i'
+.sp -1
+\h'1.587i'\v'0.371i'\D'l0.100i -0.025i'
+.sp -1
+\h'1.587i'\v'0.321i'\D'l0.100i 0.025i'
+.sp -1
+\h'1.937i'\v'0.408i'\l'1.687i'
+.sp -1
+\h'3.524i'\v'0.433i'\D'l0.100i -0.025i'
+.sp -1
+\h'3.524i'\v'0.383i'\D'l0.100i 0.025i'
+.sp -1
+\h'1.749i'\v'0.096i'\v'-.13m'\L'2.937i\(br'\v'.13m'
+.sp -1
+\h'2.037i'\v'0.508i'\D'l-0.100i 0.025i'
+.sp -1
+\h'2.037i'\v'0.558i'\D'l-0.100i -0.025i'
+.sp -1
+\h'1.937i'\v'0.533i'\l'1.687i'
+.sp -1
+\h'0.812i'\v'1.721i'\l'0.875i'
+.sp -1
+\h'1.587i'\v'1.746i'\D'l0.100i -0.025i'
+.sp -1
+\h'1.587i'\v'1.696i'\D'l0.100i 0.025i'
+.sp -1
+\h'2.099i'\v'1.758i'\D'l-0.100i 0.025i'
+.sp -1
+\h'2.099i'\v'1.808i'\D'l-0.100i -0.025i'
+.sp -1
+\h'1.999i'\v'1.783i'\l'1.688i'
+.sp -1
+\h'1.874i'\v'0.693i'\h'-0.0m'\v'0.2m'\s10\fRXIM_EXT_SET_EVENT_MASK\fP
+.sp -1
+\v'0.255i'\h'-0.0m'\v'0.2m'\s10\fRKeys in the on-key-list\fP
+.sp -1
+\h'2.062i'\v'0.880i'\h'-0.0m'\v'0.2m'\s10\fRfilter-event-mask is set\fP
+.sp -1
+\h'0.624i'\v'0.755i'\h'-0.0m'\v'0.2m'\s10\fRthe specified events\fP
+.sp -1
+\h'0.624i'\v'0.943i'\h'-0.0m'\v'0.2m'\s10\fRare being filtered\fP
+.sp -1
+\h'1.937i'\v'1.943i'\h'-0.0m'\v'0.2m'\s10\fRXIM_EXT_SET_EVENT_MASK\fP
+.sp -1
+\h'2.124i'\v'2.068i'\h'-0.0m'\v'0.2m'\s10\fRfilter-event-mask is set\fP
+.sp -1
+\h'0.062i'\v'1.568i'\h'-0.0m'\v'0.2m'\s10\fRKeys in the off-key-list\fP
+.sp -1
+\h'1.062i'\h'-0.0m'\v'0.2m'\s12\fRIM library\fP
+.sp -1
+\h'0.624i'\v'2.255i'\h'-0.0m'\v'0.2m'\s10\fRthe specified events\fP
+.sp -1
+\h'0.624i'\v'2.443i'\h'-0.0m'\v'0.2m'\s10\fRare being processed\fP
+.sp -1
+\h'1.999i'\v'0.318i'\h'-0.0m'\v'0.2m'\s10\fRXIM_FORWARD_EVENT\fP
+.sp -1
+.sp 1+3.033i
+.PE
+.if \n(00 .fi
+.\"====================================================================
+.LP
+<<Using the dynamic event flow>>
+.LP
+.\"====================================================================
+\^... 1.488 7.325 6.487 10.358
+\^... 0.000i 3.033i 4.999i 0.000i
+.nr 00 \n(.u
+.nf
+.PS 3.033i 4.999i 
+.br
+.ps 11
+\h'4.099i'\v'0.383i'\D'l-0.100i 0.025i'
+.sp -1
+\h'4.099i'\v'0.433i'\D'l-0.100i -0.025i'
+.sp -1
+\h'3.999i'\v'0.408i'\l'1.000i'
+.sp -1
+\h'4.099i'\v'1.696i'\D'l-0.100i 0.025i'
+.sp -1
+\h'4.099i'\v'1.746i'\D'l-0.100i -0.025i'
+.sp -1
+\h'3.999i'\v'1.721i'\l'1.000i'
+.sp -1
+\h'3.937i'\v'0.096i'\v'-.13m'\L'2.937i\(br'\v'.13m'
+.sp -1
+\h'3.937i'\v'0.062i'\h'-0.0m'\v'0.2m'\s12\fRIM Server\fP
+.sp -1
+\h'4.062i'\v'0.755i'\h'-0.0m'\v'0.2m'\s10\fRthe specified events\fP
+.sp -1
+\h'4.062i'\v'0.943i'\h'-0.0m'\v'0.2m'\s10\fRare being processed\fP
+.sp -1
+\h'4.062i'\v'2.255i'\h'-0.0m'\v'0.2m'\s10\fRthe specified events\fP
+.sp -1
+\h'4.062i'\v'2.443i'\h'-0.0m'\v'0.2m'\s10\fRare being discarded\fP
+.sp -1
+\h'4.249i'\v'1.568i'\h'-0.0m'\v'0.2m'\s10\fRKeys in the off-key-list\fP
+.sp -1
+\h'4.187i'\v'0.318i'\h'-0.0m'\v'0.2m'\s10\fRKeys in the on-key-list\fP
+.sp -1
+\h'0.812i'\v'0.346i'\l'0.875i'
+.sp -1
+\h'1.587i'\v'0.371i'\D'l0.100i -0.025i'
+.sp -1
+\h'1.587i'\v'0.321i'\D'l0.100i 0.025i'
+.sp -1
+\h'1.937i'\v'0.408i'\l'1.687i'
+.sp -1
+\h'3.524i'\v'0.433i'\D'l0.100i -0.025i'
+.sp -1
+\h'3.524i'\v'0.383i'\D'l0.100i 0.025i'
+.sp -1
+\h'2.037i'\v'1.258i'\D'l-0.100i 0.025i'
+.sp -1
+\h'2.037i'\v'1.308i'\D'l-0.100i -0.025i'
+.sp -1
+\h'1.937i'\v'1.283i'\l'1.687i'
+.sp -1
+\h'1.749i'\v'0.096i'\v'-.13m'\L'2.937i\(br'\v'.13m'
+.sp -1
+\h'2.037i'\v'0.508i'\D'l-0.100i 0.025i'
+.sp -1
+\h'2.037i'\v'0.558i'\D'l-0.100i -0.025i'
+.sp -1
+\h'1.937i'\v'0.533i'\l'1.687i'
+.sp -1
+\h'0.812i'\v'1.721i'\l'0.875i'
+.sp -1
+\h'1.587i'\v'1.746i'\D'l0.100i -0.025i'
+.sp -1
+\h'1.587i'\v'1.696i'\D'l0.100i 0.025i'
+.sp -1
+\h'2.099i'\v'1.758i'\D'l-0.100i 0.025i'
+.sp -1
+\h'2.099i'\v'1.808i'\D'l-0.100i -0.025i'
+.sp -1
+\h'1.999i'\v'1.783i'\l'1.688i'
+.sp -1
+\h'1.999i'\v'0.318i'\h'-0.0m'\v'0.2m'\s10\fRXIM_TRIGGER_NOTIFY\fP
+.sp -1
+\h'1.874i'\v'1.130i'\h'-0.0m'\v'0.2m'\s10\fRXIM_TRIGGER_NOTIFY_REPLY\fP
+.sp -1
+\h'1.874i'\v'0.693i'\h'-0.0m'\v'0.2m'\s10\fRXIM_EXT_SET_EVENT_MASK\fP
+.sp -1
+\v'0.255i'\h'-0.0m'\v'0.2m'\s10\fRKeys in the on-key-list\fP
+.sp -1
+\h'2.062i'\v'0.880i'\h'-0.0m'\v'0.2m'\s10\fRfilter-event-mask is set\fP
+.sp -1
+\h'0.624i'\v'0.755i'\h'-0.0m'\v'0.2m'\s10\fRthe specified events\fP
+.sp -1
+\h'0.624i'\v'0.943i'\h'-0.0m'\v'0.2m'\s10\fRare being filtered\fP
+.sp -1
+\h'1.937i'\v'1.943i'\h'-0.0m'\v'0.2m'\s10\fRXIM_EXT_SET_EVENT_MASK\fP
+.sp -1
+\h'2.124i'\v'2.068i'\h'-0.0m'\v'0.2m'\s10\fRfilter-event-mask is set\fP
+.sp -1
+\h'0.062i'\v'1.568i'\h'-0.0m'\v'0.2m'\s10\fRKeys in the off-key-list\fP
+.sp -1
+\h'1.062i'\h'-0.0m'\v'0.2m'\s12\fRIM library\fP
+.sp -1
+\h'0.624i'\v'2.255i'\h'-0.0m'\v'0.2m'\s10\fRthe specified events\fP
+.sp -1
+\h'0.624i'\v'2.443i'\h'-0.0m'\v'0.2m'\s10\fRare being processed\fP
+.sp -1
+.sp 1+3.033i
+.PE
+.if \n(00 .fi
+
+.\"====================================================================
+.LP
+This method does not have the problem of the time lag when going across
+the preediting on and off mode, however, the amount of the performance
+acceleration is not as good as the method described above.
+.LP
+In general, the FrontEnd method requires some synchronization to some
+of the X protocols, such as the ChangeWindowAttribute protocol for the 
+event mask change or the GrabKey protocol, since it relies on the X's
+principal event dispatching mechanism. Any X protocol bindings do not
+consider the synchronization might cause some mis-synchronization 
+between the IM clients and the IM Server.
+.LP
+.bp
+.IP \fB(2) 
+Transport Layer\fP 
+.LP
+The Xlib XIM implementation is layered into three functions, a protocol
+layer, an interface layer and a transport layer. The purpose of this
+layering is to make the protocol independent of transport implementation.
+Each function of these layers are:
+.RS 3
+.IP "\fIThe protocol layer\fP"
+.br
+implements overall function of XIM and calls the interface layer
+functions when it needs to communicate to IM Server. 
+.IP "\fIThe interface layer\fP"
+.br
+separates the implementation of the transport layer from the protocol
+layer, in other words, it provides implementation independent hook for
+the transport layer functions.
+.IP "\fIThe transport layer\fP"
+.br
+handles actual data communication with IM Server. It is done by a set
+of several functions named transporters.
+.RE
+.LP
+The interface layer and the transport layer make various communication
+channels usable such as X Protocol, TCP/IP, DECnet or STREAM. 
+The following is a sample implementation for the transporter using 
+the X connection.
+Refer to "xtrans" for the transporter using Socket Transport.
+.LP
+At the beginning of the X Transport connection for the XIM transport
+mechanism, two different windows must be created either in an Xlib XIM
+or in an IM Server, with which the Xlib and the IM Server exchange the
+XIM transports by using the ClientMessage events and Window Properties.
+In the following, the window created by the Xlib is referred as the
+"client communication window", and on the other hand, the window created
+by the IM Server is referred as the "IMS communication window".
+.LP
+.B
+Connection
+.LP
+.RS
+In order to establish a connection, a communication window is created.
+A ClientMessage in the following event's format is sent to the owner 
+window of XIM_SERVER selection, which the IM Server has created.
+.LP
+Refer to "The Input Method Protocol" for the XIM_SERVER atom.
+.LP
+.ce
+Table D-1; The ClientMessage sent to the IMS window.
+.TS H
+tab(:);
+l s|l
+l l|l.
+_
+.sp 6p
+.B
+Structure Member:Contents
+.sp 6p
+_
+.sp 6p
+.TH
+.R
+int:type:ClientMessage  
+u_long:serial:Set by the X Window System  
+Bool:send_event:Set by the X Window System  
+Display:*display:The display to which connects
+Window:window:IMS Window ID
+Atom:message_type:XInternAtom(display, ``_XIM_XCONNECT'', False)
+int:format:32  
+long:data.l[0]:client communication window ID  
+long:data.l[1]:client-major-transport-version (*1)
+long:data.l[2]:client-major-transport-version (*1)
+.sp 6p
+_
+.TE
+.LP
+In order to establish the connection (to notify the IM Server communication
+window), the IM Server sends a ClientMessage in the following event's
+format to the client communication window.
+.LP
+.bp
+.ce
+Table D-2; The ClientMessage sent by IM Server.
+.TS H
+tab(:);
+l s | l
+l l | l.
+_
+.sp 6p
+.B
+Structure Member:Contents
+.sp 6p
+_
+.sp 6p
+.TH
+.R
+int:type:ClientMessage  
+u_long:serial:Set by the X Window System  
+Bool:send_event:Set by the X Window System  
+Display:*display:The display to which connects
+Window:window:client communication window ID  
+Atom:message_type:XInternAtom(display, ``_XIM_XCONNECT'', False)
+int:format:32  
+long:data.l[0]:IMS communication window ID  
+long:data.l[1]:server-major-transport-version (*1)
+long:data.l[2]:server-minor-transport-version (*1)
+long:data.l[3]:dividing size between ClientMessage and Property (*2)
+.sp 6p
+_
+.TE
+.LP
+.IP (*1) 
+major/minor-transport-version
+.RS
+The read/write method is decided by the combination of 
+major/minor-transport-version, as follows:
+.LP
+.ce
+Table D-3; The read/write method and the major/minor-transport-version
+.TS
+center, tab(:);
+| c s | l |
+| c | c | l |.
+_
+.sp 6p
+.B
+Transport-version:read/write 
+.sp 6p
+_
+.sp 6p
+major:minor:
+.sp 6p
+_
+.sp 6p
+.R
+0:0:only-CM & Property-with-CM
+:1:only-CM & multi-CM
+:2:only-CM & multi-CM & Property-with-CM
+.sp 6p
+_
+.sp 6p
+1:0:PropertyNotify
+.sp 6p
+_
+.sp 6p
+2:0:only-CM & PropertyNotify
+:1:only-CM & multi-CM & PropertyNotify
+.sp 6p
+_
+.TE
+.LP
+.RS
+.TS
+center, tab(;);
+l n l.
+only-CM;:;data is sent via a ClientMessage
+multi-CM;:;data is sent via multiple ClientMessages 
+Property-with-CM;:;T{
+data is written in Property, and its Atom is send via ClientMessage
+T}
+PropertyNotify;:;T{
+data is written in Property, and its Atom is send via PropertyNotify
+T}
+.TE
+.RE
+.LP
+The method to decide major/minor-transport-version is as follows:
+.LP
+.IP (1)
+The client sends 0 as major/minor-transport-version to the IM Server.
+The client must support all methods in Table D-3.
+The client may send another number as major/minor-transport-version to
+use other method than the above in the future.
+.IP (2)
+The IM Server sends its major/minor-transport-version number to
+the client. The client sends data using the method specified by the 
+IM Server.
+.IP (3)
+If major/minor-transport-version number is not available, it is regarded
+as 0.
+.RE
+.LP
+.IP (*2) 
+dividing size between ClientMessage and Property
+.RS
+If data is sent via both of multi-CM and Property, specify the dividing
+size between ClientMessage and Property. The data, which is smaller than
+this size, is sent via multi-CM (or only-CM), and the data, which is 
+lager than this size, is sent via Property. 
+.RE
+.RE
+.LP
+.sp
+.LP
+.B
+read/write
+.LP  
+.RS
+The data is transferred via either ClientMessage or Window Property in
+the X Window System.
+.LP
+.B
+Format for the data from the Client to the IM Server
+.LP
+.RS
+.B
+ClientMessage
+.LP
+If data is sent via ClientMessage event, the format is as follows:
+.LP
+.ce
+Table D-4; The ClientMessage event's format (first or middle)
+.TS
+tab(;);
+l s | l
+l l | l.
+_
+.sp 6p
+.B
+Structure Member;Contents
+.sp 6p
+_
+.sp 6p
+.R
+int;type;ClientMessage  
+u_long;serial;Set by the X Window System  
+Bool;send_event;Set by the X Window System  
+Display;*display;The display to which connects  
+Window;window;IMS communication window ID  
+Atom;message_type;XInternAtom(display, ``_XIM_MOREDATA'', False)
+int;format;8  
+char;data.b[20];(read/write DATA : 20 byte)  
+.sp 6p
+_
+.TE
+.LP
+.ce
+Table D-5; The ClientMessage event's format (only or last)
+.TS H
+tab(;);
+l s | l
+l l | l.
+_
+.sp 6p
+.B
+Structure Member;Contents
+.sp 6p
+_
+.sp 6p
+.TH
+.R
+int;type;ClientMessage  
+u_long;serial;Set by the X Window System  
+Bool;send_event;Set by the X Window System  
+Display;*display;The display to which connects  
+Window;window;IMS communication window ID  
+Atom;message_type;XInternAtom(display, ``_XIM_PROTOCOL'', False)
+int;format;8  
+char;data.b[20];(read/write DATA : MAX 20 byte)  (*1)
+.sp 6p
+_
+.TE
+.IP (*1)
+If the data is smaller than 20 byte, all data other than available data
+must be 0.
+.RE
+.LP
+.RS
+.B
+Property
+.LP
+In the case of large data, data will be sent via the Window Property 
+for the efficiency.  There are the following two methods to notify 
+Property, and transport-version is decided which method is used.
+.LP
+.IP (1)
+The XChangeProperty function is used to store data in the client 
+communication window, and Atom of the stored data is notified to the 
+IM Server via ClientMessage event.
+.IP (2)
+The XChangeProperty function is used to store data in the client 
+communication window, and Atom of the stored data is notified to the 
+IM Server via PropertyNotify event.
+.LP
+The arguments of the XChangeProperty are as follows:
+.LP
+.bp
+.ce
+Table D-6; The XChangeProperty event's format
+.TS H
+tab(:);
+l s | l
+l l | l.
+_
+.sp 6p
+.B
+Argument:Contents
+.sp 6p
+_
+.sp 6p
+.TH
+.R
+Display:*display:The display to which connects
+Window:window:IMS communication window ID  
+Atom:property:read/write property Atom (*1) 
+Atom:type:XA_STRING  
+int:format:8  
+int:mode:PropModeAppend  
+u_char:*data:read/write DATA 
+int:nelements:length of DATA
+.sp 6p
+_
+.TE
+.LP
+.IP (*1)
+The read/write property ATOM allocates the following strings by
+\fBXInternAtom\fP.
+.RS
+``_clientXXX''
+.RE
+.LP
+The client changes the property with the mode of PropModeAppend and
+the IM Server will read it with the delete mode i.e. (delete = True).
+.LP
+If Atom is notified via ClientMessage event, the format of the ClientMessage 
+is as follows:
+.LP
+.ce 
+Table D-7; The ClientMessage event's format to send Atom of property
+.TS H
+tab(:);
+l s | l 
+l l | l.
+_
+.sp 6p
+.B
+Structure Member:Contents
+.sp 6p
+_
+.sp 6p
+.TH
+.R
+int:type:ClientMessage  
+u_long:serial:Set by the X Window System  
+Bool:send_event:Set by the X Window System  
+Display:*display:The display to which connects
+Window:window:IMS communication window ID  
+Atom:message_type:XInternAtom(display, ``_XIM_PROTOCOL'', False)
+int:format:32  
+long:data.l[0]:length of read/write property Atom  
+long:data.l[1]:read/write property Atom
+.sp 6p
+_
+.TE
+.RE
+.LP
+.B
+Format for the data from the IM Server to the Client
+.LP
+.RS
+.B
+ClientMessage
+.LP
+The format of the ClientMessage is as follows:
+.LP
+.ce
+Table D-8; The ClientMessage event's format (first or middle)
+.TS H
+tab(;);
+l s | l
+l l | l.
+_
+.sp 6p
+.B
+Structure Member;Contents
+.sp 6p
+_
+.sp 6p
+.TH
+.R
+int;type;ClientMessage  
+u_long;serial;Set by the X Window System  
+Bool;send_event ;Set by the X Window System  
+Display;*display;The display to which connects
+Window;window;client communication window ID  
+Atom;message_type;XInternAtom(display, ``_XIM_MOREDATA'', False)
+int;format;8  
+char;data.b[20];(read/write DATA : 20 byte)  
+.sp 6p
+_
+.TE
+.LP
+.bp
+.ce
+Table D-9; The ClientMessage event's format (only or last)
+.TS
+tab(;);
+l s | l
+l l | l.
+_
+.sp 6p
+.B
+Structure Member;Contents
+.sp 6p
+_
+.sp 6p
+.R
+int;type;ClientMessage  
+u_long;serial;Set by the X Window System  
+Bool;send_event ;Set by the X Window System  
+Display;*display;The display to which connects
+Window;window;client communication window ID  
+Atom;message_type;XInternAtom(display, ``_XIM_PROTOCOL'', False)
+int;format;8  
+char;data.b[20];(read/write DATA : MAX 20 byte) (*1) 
+.sp 6p
+_
+.TE
+.LP
+.IP (*1)
+If the data size is smaller than 20 bytes, all data other than available 
+data must be 0.
+.LP
+.B
+Property
+.LP
+In the case of large data, data will be sent via the Window Property
+for the efficiency. There are the following two methods to notify 
+Property, and transport-version is decided which method is used.
+.LP
+.IP (1)
+The XChangeProperty function is used to store data in the IMS 
+communication window, and Atom of the property is sent via the 
+ClientMessage event.
+.IP (2)
+The XChangeProperty function is used to store data in the IMS 
+communication window, and Atom of the property is sent via 
+PropertyNotify event.
+.LP
+The arguments of the XChangeProperty are as follows:
+.LP
+.ce
+Table D-10; The XChangeProperty event's format
+.TS H
+tab(:);
+l s | l
+l l | l.
+_
+.sp 6p
+.B
+Argument:Contents
+.sp 6p
+_
+.sp 6p
+.TH
+.R
+Display:*display:The display which to connects
+Window:window:client communication window ID  
+Atom:property:read/write property Atom (*1)
+Atom:type:XA_STRING  
+int:format:8  
+int:mode:PropModeAppend  
+u_char:*data:read/write DATA  
+int:nelements:length of DATA  
+.sp 6p
+_
+.TE
+.LP  
+.IP (*1)
+The read/write property ATOM allocates some strings, which are not
+allocated by the client, by \fBXInternAtom\fP.
+.LP
+The IM Server changes the property with the mode of PropModeAppend and
+the client reads it with the delete mode, i.e. (delete = True).
+.LP
+If Atom is notified via ClientMessage event, the format of the ClientMessage 
+is as follows:
+.LP
+.bp
+.ce
+Table D-11; The ClientMessage event's format to send Atom of property 
+.TS H
+tab(:);
+l s | l
+l l | l.
+_
+.sp 6p
+.B
+Structure Member:Contents
+.sp 6p
+_
+.sp 6p
+.TH
+.R
+int:type:ClientMessage  
+u_long:serial:Set by the X Window System  
+Bool:send_event:Set by the X Window System  
+Display:*display:The display to which connects  
+Window:window:client communication window ID  
+Atom:message_type:XInternAtom(display, ``_XIM_PROTOCOL'', False)
+int:format:32  
+long:data.l[0]:length of read/write property ATOM  
+long:data.l[1]:read/write property ATOM  
+.sp 6p
+_
+.TE
+.RE
+.RE
+.LP
+.B
+Closing Connection
+.RS
+.LP
+If the client disconnect with the IM Server, shutdown function should 
+free the communication window properties and etc..
+.RE
+.LP
+.bp
+.EH ''''
+.OH ''''
+.EF ''''
+.OF ''''
+.TC
+