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Diffstat (limited to 'libX11/man/XIfEvent.man')
-rw-r--r-- | libX11/man/XIfEvent.man | 502 |
1 files changed, 251 insertions, 251 deletions
diff --git a/libX11/man/XIfEvent.man b/libX11/man/XIfEvent.man index ebfbf8c69..4b5ef141d 100644 --- a/libX11/man/XIfEvent.man +++ b/libX11/man/XIfEvent.man @@ -1,251 +1,251 @@ -.\" Copyright \(co 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1994, 1996 X Consortium -.\" -.\" 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: -.\" -.\" 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 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. -.\" -.\" 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. -.\" -.\" Copyright \(co 1985, 1986, 1987, 1988, 1989, 1990, 1991 by -.\" Digital Equipment Corporation -.\" -.\" Portions Copyright \(co 1990, 1991 by -.\" Tektronix, Inc. -.\" -.\" Permission to use, copy, modify and distribute this documentation for -.\" any purpose and without fee is hereby granted, provided that the above -.\" copyright notice appears in all copies and that both that copyright notice -.\" and this permission notice appear in all copies, and that the names of -.\" Digital and Tektronix not be used in in advertising or publicity pertaining -.\" to this documentation without specific, written prior permission. -.\" Digital and Tektronix makes no representations about the suitability -.\" of this documentation for any purpose. -.\" It is provided ``as is'' without express or implied warranty. -.\" -.\" -.ds xT X Toolkit Intrinsics \- C Language Interface -.ds xW Athena X Widgets \- C Language X Toolkit Interface -.ds xL Xlib \- C Language X Interface -.ds xC Inter-Client Communication Conventions Manual -.na -.de Ds -.nf -.\\$1D \\$2 \\$1 -.ft 1 -.\".ps \\n(PS -.\".if \\n(VS>=40 .vs \\n(VSu -.\".if \\n(VS<=39 .vs \\n(VSp -.. -.de De -.ce 0 -.if \\n(BD .DF -.nr BD 0 -.in \\n(OIu -.if \\n(TM .ls 2 -.sp \\n(DDu -.fi -.. -.de FD -.LP -.KS -.TA .5i 3i -.ta .5i 3i -.nf -.. -.de FN -.fi -.KE -.LP -.. -.de IN \" send an index entry to the stderr -.. -.de C{ -.KS -.nf -.D -.\" -.\" choose appropriate monospace font -.\" the imagen conditional, 480, -.\" may be changed to L if LB is too -.\" heavy for your eyes... -.\" -.ie "\\*(.T"480" .ft L -.el .ie "\\*(.T"300" .ft L -.el .ie "\\*(.T"202" .ft PO -.el .ie "\\*(.T"aps" .ft CW -.el .ft R -.ps \\n(PS -.ie \\n(VS>40 .vs \\n(VSu -.el .vs \\n(VSp -.. -.de C} -.DE -.R -.. -.de Pn -.ie t \\$1\fB\^\\$2\^\fR\\$3 -.el \\$1\fI\^\\$2\^\fP\\$3 -.. -.de ZN -.ie t \fB\^\\$1\^\fR\\$2 -.el \fI\^\\$1\^\fP\\$2 -.. -.de hN -.ie t <\fB\\$1\fR>\\$2 -.el <\fI\\$1\fP>\\$2 -.. -.de NT -.ne 7 -.ds NO Note -.if \\n(.$>$1 .if !'\\$2'C' .ds NO \\$2 -.if \\n(.$ .if !'\\$1'C' .ds NO \\$1 -.ie n .sp -.el .sp 10p -.TB -.ce -\\*(NO -.ie n .sp -.el .sp 5p -.if '\\$1'C' .ce 99 -.if '\\$2'C' .ce 99 -.in +5n -.ll -5n -.R -.. -. \" Note End -- doug kraft 3/85 -.de NE -.ce 0 -.in -5n -.ll +5n -.ie n .sp -.el .sp 10p -.. -.ny0 -.TH XIfEvent __libmansuffix__ __xorgversion__ "XLIB FUNCTIONS" -.SH NAME -XIfEvent, XCheckIfEvent, XPeekIfEvent \- check the event queue with a predicate procedure -.SH SYNTAX -.HP -int XIfEvent\^(\^Display *\fIdisplay\fP\^, XEvent *\fIevent_return\fP\^, Bool -(\^*\fIpredicate\fP\^)\^(\^)\^, XPointer \fIarg\fP\^); -.HP -Bool XCheckIfEvent\^(\^Display *\fIdisplay\fP\^, XEvent *\fIevent_return\fP\^, -Bool (\^*\fIpredicate\fP\^)\^(\^)\^, XPointer \fIarg\fP\^); -.HP -int XPeekIfEvent\^(\^Display *\fIdisplay\fP\^, XEvent *\fIevent_return\fP\^, -Bool (\^*\fIpredicate\fP\^)\^(\^)\^, XPointer \fIarg\fP\^); -.SH ARGUMENTS -.IP \fIarg\fP 1i -Specifies the user-supplied argument that will be passed to the predicate procedure. -.IP \fIdisplay\fP 1i -Specifies the connection to the X server. -.ds Ev \ either a copy of or -.IP \fIevent_return\fP 1i -Returns\*(Ev the matched event's associated structure. -.IP \fIpredicate\fP 1i -Specifies the procedure that is to be called to determine -if the next event in the queue matches what you want. -.SH DESCRIPTION -The -.ZN XIfEvent -function completes only when the specified predicate -procedure returns -.ZN True -for an event, -which indicates an event in the queue matches. -.ZN XIfEvent -flushes the output buffer if it blocks waiting for additional events. -.ZN XIfEvent -removes the matching event from the queue -and copies the structure into the client-supplied -.ZN XEvent -structure. -.LP -When the predicate procedure finds a match, -.ZN XCheckIfEvent -copies the matched event into the client-supplied -.ZN XEvent -structure and returns -.ZN True . -(This event is removed from the queue.) -If the predicate procedure finds no match, -.ZN XCheckIfEvent -returns -.ZN False , -and the output buffer will have been flushed. -All earlier events stored in the queue are not discarded. -.LP -The -.ZN XPeekIfEvent -function returns only when the specified predicate -procedure returns -.ZN True -for an event. -After the predicate procedure finds a match, -.ZN XPeekIfEvent -copies the matched event into the client-supplied -.ZN XEvent -structure without removing the event from the queue. -.ZN XPeekIfEvent -flushes the output buffer if it blocks waiting for additional events. -.LP -Each of these functions requires you to pass a predicate procedure that -determines if an event matches what you want. -Your predicate procedure must decide if the event is useful -without calling any Xlib functions. -If the predicate directly or indirectly causes the state of the event queue -to change, the result is not defined. -If Xlib has been initialized for threads, the predicate is called with -the display locked and the result of a call by the predicate to any -Xlib function that locks the display is not defined unless the caller -has first called -.ZN XLockDisplay . -.LP -The predicate procedure and its associated arguments are: -.HP -Bool (\^*\fIpredicate\fP\^)\^(\^Display *\fIdisplay\fP, XEvent *\fIevent\fP, XPointer \fIarg\fP\^) -.IP \fIdisplay\fP 1i -Specifies the connection to the X server. -.IP \fIevent\fP 1i -Specifies the -.ZN XEvent -structure. -.IP \fIarg\fP 1i -Specifies the argument passed in from the -.ZN XIfEvent , -.ZN XCheckIfEvent , -or -.ZN XPeekIfEvent -function. -.LP -The predicate procedure is called once for each -event in the queue until it finds a match. -After finding a match, the predicate procedure must return -.ZN True . -If it did not find a match, it must return -.ZN False . -.SH "SEE ALSO" -XAnyEvent(__libmansuffix__), -XNextEvent(__libmansuffix__), -XPutBackEvent(__libmansuffix__) -XSendEvent(__libmansuffix__) -.br -\fI\*(xL\fP +.\" Copyright \(co 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1994, 1996 X Consortium
+.\"
+.\" 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:
+.\"
+.\" 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 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.
+.\"
+.\" 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.
+.\"
+.\" Copyright \(co 1985, 1986, 1987, 1988, 1989, 1990, 1991 by
+.\" Digital Equipment Corporation
+.\"
+.\" Portions Copyright \(co 1990, 1991 by
+.\" Tektronix, Inc.
+.\"
+.\" Permission to use, copy, modify and distribute this documentation for
+.\" any purpose and without fee is hereby granted, provided that the above
+.\" copyright notice appears in all copies and that both that copyright notice
+.\" and this permission notice appear in all copies, and that the names of
+.\" Digital and Tektronix not be used in in advertising or publicity pertaining
+.\" to this documentation without specific, written prior permission.
+.\" Digital and Tektronix makes no representations about the suitability
+.\" of this documentation for any purpose.
+.\" It is provided ``as is'' without express or implied warranty.
+.\"
+.\"
+.ds xT X Toolkit Intrinsics \- C Language Interface
+.ds xW Athena X Widgets \- C Language X Toolkit Interface
+.ds xL Xlib \- C Language X Interface
+.ds xC Inter-Client Communication Conventions Manual
+.na
+.de Ds
+.nf
+.\\$1D \\$2 \\$1
+.ft 1
+.\".ps \\n(PS
+.\".if \\n(VS>=40 .vs \\n(VSu
+.\".if \\n(VS<=39 .vs \\n(VSp
+..
+.de De
+.ce 0
+.if \\n(BD .DF
+.nr BD 0
+.in \\n(OIu
+.if \\n(TM .ls 2
+.sp \\n(DDu
+.fi
+..
+.de FD
+.LP
+.KS
+.TA .5i 3i
+.ta .5i 3i
+.nf
+..
+.de FN
+.fi
+.KE
+.LP
+..
+.de IN \" send an index entry to the stderr
+..
+.de C{
+.KS
+.nf
+.D
+.\"
+.\" choose appropriate monospace font
+.\" the imagen conditional, 480,
+.\" may be changed to L if LB is too
+.\" heavy for your eyes...
+.\"
+.ie "\\*(.T"480" .ft L
+.el .ie "\\*(.T"300" .ft L
+.el .ie "\\*(.T"202" .ft PO
+.el .ie "\\*(.T"aps" .ft CW
+.el .ft R
+.ps \\n(PS
+.ie \\n(VS>40 .vs \\n(VSu
+.el .vs \\n(VSp
+..
+.de C}
+.DE
+.R
+..
+.de Pn
+.ie t \\$1\fB\^\\$2\^\fR\\$3
+.el \\$1\fI\^\\$2\^\fP\\$3
+..
+.de ZN
+.ie t \fB\^\\$1\^\fR\\$2
+.el \fI\^\\$1\^\fP\\$2
+..
+.de hN
+.ie t <\fB\\$1\fR>\\$2
+.el <\fI\\$1\fP>\\$2
+..
+.de NT
+.ne 7
+.ds NO Note
+.if \\n(.$>$1 .if !'\\$2'C' .ds NO \\$2
+.if \\n(.$ .if !'\\$1'C' .ds NO \\$1
+.ie n .sp
+.el .sp 10p
+.TB
+.ce
+\\*(NO
+.ie n .sp
+.el .sp 5p
+.if '\\$1'C' .ce 99
+.if '\\$2'C' .ce 99
+.in +5n
+.ll -5n
+.R
+..
+. \" Note End -- doug kraft 3/85
+.de NE
+.ce 0
+.in -5n
+.ll +5n
+.ie n .sp
+.el .sp 10p
+..
+.ny0
+.TH XIfEvent __libmansuffix__ __xorgversion__ "XLIB FUNCTIONS"
+.SH NAME
+XIfEvent, XCheckIfEvent, XPeekIfEvent \- check the event queue with a predicate procedure
+.SH SYNTAX
+.HP
+int XIfEvent\^(\^Display *\fIdisplay\fP\^, XEvent *\fIevent_return\fP\^, Bool
+(\^*\fIpredicate\fP\^)\^(\^)\^, XPointer \fIarg\fP\^);
+.HP
+Bool XCheckIfEvent\^(\^Display *\fIdisplay\fP\^, XEvent *\fIevent_return\fP\^,
+Bool (\^*\fIpredicate\fP\^)\^(\^)\^, XPointer \fIarg\fP\^);
+.HP
+int XPeekIfEvent\^(\^Display *\fIdisplay\fP\^, XEvent *\fIevent_return\fP\^,
+Bool (\^*\fIpredicate\fP\^)\^(\^)\^, XPointer \fIarg\fP\^);
+.SH ARGUMENTS
+.IP \fIarg\fP 1i
+Specifies the user-supplied argument that will be passed to the predicate procedure.
+.IP \fIdisplay\fP 1i
+Specifies the connection to the X server.
+.ds Ev \ either a copy of or
+.IP \fIevent_return\fP 1i
+Returns\*(Ev the matched event's associated structure.
+.IP \fIpredicate\fP 1i
+Specifies the procedure that is to be called to determine
+if the next event in the queue matches what you want.
+.SH DESCRIPTION
+The
+.ZN XIfEvent
+function completes only when the specified predicate
+procedure returns
+.ZN True
+for an event,
+which indicates an event in the queue matches.
+.ZN XIfEvent
+flushes the output buffer if it blocks waiting for additional events.
+.ZN XIfEvent
+removes the matching event from the queue
+and copies the structure into the client-supplied
+.ZN XEvent
+structure.
+.LP
+When the predicate procedure finds a match,
+.ZN XCheckIfEvent
+copies the matched event into the client-supplied
+.ZN XEvent
+structure and returns
+.ZN True .
+(This event is removed from the queue.)
+If the predicate procedure finds no match,
+.ZN XCheckIfEvent
+returns
+.ZN False ,
+and the output buffer will have been flushed.
+All earlier events stored in the queue are not discarded.
+.LP
+The
+.ZN XPeekIfEvent
+function returns only when the specified predicate
+procedure returns
+.ZN True
+for an event.
+After the predicate procedure finds a match,
+.ZN XPeekIfEvent
+copies the matched event into the client-supplied
+.ZN XEvent
+structure without removing the event from the queue.
+.ZN XPeekIfEvent
+flushes the output buffer if it blocks waiting for additional events.
+.LP
+Each of these functions requires you to pass a predicate procedure that
+determines if an event matches what you want.
+Your predicate procedure must decide if the event is useful
+without calling any Xlib functions.
+If the predicate directly or indirectly causes the state of the event queue
+to change, the result is not defined.
+If Xlib has been initialized for threads, the predicate is called with
+the display locked and the result of a call by the predicate to any
+Xlib function that locks the display is not defined unless the caller
+has first called
+.ZN XLockDisplay .
+.LP
+The predicate procedure and its associated arguments are:
+.HP
+Bool (\^*\fIpredicate\fP\^)\^(\^Display *\fIdisplay\fP, XEvent *\fIevent\fP, XPointer \fIarg\fP\^)
+.IP \fIdisplay\fP 1i
+Specifies the connection to the X server.
+.IP \fIevent\fP 1i
+Specifies the
+.ZN XEvent
+structure.
+.IP \fIarg\fP 1i
+Specifies the argument passed in from the
+.ZN XIfEvent ,
+.ZN XCheckIfEvent ,
+or
+.ZN XPeekIfEvent
+function.
+.LP
+The predicate procedure is called once for each
+event in the queue until it finds a match.
+After finding a match, the predicate procedure must return
+.ZN True .
+If it did not find a match, it must return
+.ZN False .
+.SH "SEE ALSO"
+XAnyEvent(__libmansuffix__),
+XNextEvent(__libmansuffix__),
+XPutBackEvent(__libmansuffix__)
+XSendEvent(__libmansuffix__)
+.br
+\fI\*(xL\fP
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