Added libXt-1.0.7

1 files changed, 778 insertions, 0 deletions

diff --git a/libXt/src/Create.c b/libXt/src/Create.c
new file mode 100644
index 000000000..ab98c3d4e
--- /dev/null
+++ b/libXt/src/Create.c
@@ -0,0 +1,778 @@
+/* $Xorg: Create.c,v 1.4 2001/02/09 02:03:54 xorgcvs Exp $ */
+
+/***********************************************************
+Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts,
+Copyright 1993 by Sun Microsystems, Inc. Mountain View, CA
+
+                        All Rights Reserved
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted,
+provided that the above copyright notice appear in all copies and that
+both that copyright notice and this permission notice appear in
+supporting documentation, and that the names of Digital or Sun not be
+used in advertising or publicity pertaining to distribution of the
+software without specific, written prior permission.
+
+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+SOFTWARE.
+
+SUN DISCLAIMS ALL WARRANTIES WITH REGARD TO  THIS  SOFTWARE,
+INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FIT-
+NESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SUN BE  LI-
+ABLE  FOR  ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,  DATA  OR
+PROFITS,  WHETHER  IN  AN  ACTION OF CONTRACT, NEGLIGENCE OR
+OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION  WITH
+THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+******************************************************************/
+/* $XFree86: xc/lib/Xt/Create.c,v 3.10 2002/12/17 04:50:58 dawes Exp $ */
+
+/*
+
+Copyright 1987, 1988, 1994, 1998  The Open Group
+
+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 Open Group 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 Open Group.
+
+*/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include "IntrinsicI.h"
+#include "VarargsI.h"
+#include "ShellP.h"
+#include "CreateI.h"
+#ifndef X_NO_RESOURCE_CONFIGURATION_MANAGEMENT
+#include "ResConfigP.h"
+#endif
+#include <stdio.h>
+
+static String XtNxtCreateWidget = "xtCreateWidget";
+static String XtNxtCreatePopupShell = "xtCreatePopupShell";
+
+static void
+CallClassPartInit(WidgetClass ancestor, WidgetClass wc)
+{
+    if (ancestor->core_class.superclass != NULL) {
+	CallClassPartInit(ancestor->core_class.superclass, wc);
+    }
+    if (ancestor->core_class.class_part_initialize != NULL) {
+	(*(ancestor->core_class.class_part_initialize)) (wc);
+    }
+}
+
+void
+XtInitializeWidgetClass(WidgetClass wc)
+{
+    XtEnum inited;
+    LOCK_PROCESS;
+    if (wc->core_class.class_inited) {
+	UNLOCK_PROCESS;
+	return;
+    }
+    inited = 0x01;
+    {
+	WidgetClass pc;
+#define LeaveIfClass(c, d) if (pc == c) { inited = d; break; }
+	for (pc = wc; pc; pc = pc->core_class.superclass) {
+	    LeaveIfClass(rectObjClass, 0x01 |
+			 RectObjClassFlag);
+	    LeaveIfClass(coreWidgetClass, 0x01 |
+			 RectObjClassFlag |
+			 WidgetClassFlag);
+	    LeaveIfClass(compositeWidgetClass, 0x01 |
+			 RectObjClassFlag |
+			 WidgetClassFlag |
+			 CompositeClassFlag);
+	    LeaveIfClass(constraintWidgetClass, 0x01 |
+			 RectObjClassFlag |
+			 WidgetClassFlag |
+			 CompositeClassFlag |
+			 ConstraintClassFlag);
+	    LeaveIfClass(shellWidgetClass, 0x01 |
+			 RectObjClassFlag |
+			 WidgetClassFlag |
+			 CompositeClassFlag |
+			 ShellClassFlag);
+	    LeaveIfClass(wmShellWidgetClass, 0x01 |
+			 RectObjClassFlag |
+			 WidgetClassFlag |
+			 CompositeClassFlag |
+			 ShellClassFlag |
+			 WMShellClassFlag);
+	    LeaveIfClass(topLevelShellWidgetClass, 0x01 |
+			 RectObjClassFlag |
+			 WidgetClassFlag |
+			 CompositeClassFlag |
+			 ShellClassFlag |
+			 WMShellClassFlag |
+			 TopLevelClassFlag);
+	}
+#undef LeaveIfClass
+    }
+    if (wc->core_class.version != XtVersion &&
+	wc->core_class.version != XtVersionDontCheck) {
+	String param[3];
+	String mismatch = "Widget class %s version mismatch (recompilation needed):\n  widget %d vs. intrinsics %d.";
+	String recompile = "Widget class %s must be re-compiled.";
+	Cardinal num_params;
+
+	param[0] = wc->core_class.class_name;
+	param[1] = (String) wc->core_class.version;
+	param[2] = (String) XtVersion;
+
+	if (wc->core_class.version == (11 * 1000 + 5) || /* MIT X11R5 */
+	    wc->core_class.version == (11 * 1000 + 4)) { /* MIT X11R4 */
+	    if ((inited & WMShellClassFlag) &&
+		(sizeof(Boolean) != sizeof(char) ||
+		 sizeof(Atom) != sizeof(Widget) ||
+		 sizeof(Atom) != sizeof(String))) {
+		num_params=3;
+		XtWarningMsg("versionMismatch","widget",XtCXtToolkitError,
+			     mismatch, param, &num_params);
+		num_params=1;
+		XtErrorMsg("R4orR5versionMismatch","widget",XtCXtToolkitError,
+			   recompile, param, &num_params);
+
+	    }
+	}
+	else if (wc->core_class.version == (11 * 1000 + 3)) { /* MIT X11R3 */
+	    if (inited & ShellClassFlag) {
+		num_params=1;
+		XtWarningMsg("r3versionMismatch","widget",XtCXtToolkitError,
+			     "Shell Widget class %s binary compiled for R3",
+			     param,&num_params);
+		XtErrorMsg("R3versionMismatch","widget",XtCXtToolkitError,
+			   recompile, param, &num_params);
+	    }
+	}
+	else {
+	    num_params=3;
+	    XtWarningMsg("versionMismatch","widget",XtCXtToolkitError,
+			 mismatch, param, &num_params);
+	    if (wc->core_class.version == (2 * 1000 + 2)) /* MIT X11R2 */ {
+		num_params=1;
+		XtErrorMsg("r2versionMismatch","widget",XtCXtToolkitError,
+			   recompile, param, &num_params);
+	    }
+	}
+    }
+
+    if ((wc->core_class.superclass != NULL)
+	    && (!(wc->core_class.superclass->core_class.class_inited)))
+ 	XtInitializeWidgetClass(wc->core_class.superclass);
+
+    if (wc->core_class.class_initialize != NULL)
+	(*(wc->core_class.class_initialize))();
+    CallClassPartInit(wc, wc);
+    wc->core_class.class_inited = inited;
+    UNLOCK_PROCESS;
+}
+
+static void
+CallInitialize (
+    WidgetClass class,
+    Widget      req_widget,
+    Widget      new_widget,
+    ArgList     args,
+    Cardinal    num_args)
+{
+    WidgetClass superclass;
+    XtInitProc initialize;
+    XtArgsProc initialize_hook;
+
+    LOCK_PROCESS;
+    superclass = class->core_class.superclass;
+    UNLOCK_PROCESS;
+    if (superclass)
+        CallInitialize (superclass, req_widget, new_widget, args, num_args);
+    LOCK_PROCESS;
+    initialize = class->core_class.initialize;
+    UNLOCK_PROCESS;
+    if (initialize)
+	(*initialize) (req_widget, new_widget, args, &num_args);
+    LOCK_PROCESS;
+    initialize_hook = class->core_class.initialize_hook;
+    UNLOCK_PROCESS;
+    if (initialize_hook)
+	(*initialize_hook) (new_widget, args, &num_args);
+}
+
+static void
+CallConstraintInitialize (
+    ConstraintWidgetClass class,
+    Widget	req_widget,
+    Widget	new_widget,
+    ArgList	args,
+    Cardinal	num_args)
+{
+    WidgetClass superclass;
+    XtInitProc initialize;
+
+    LOCK_PROCESS;
+    superclass = class->core_class.superclass;
+    UNLOCK_PROCESS;
+    if (superclass != constraintWidgetClass)
+	CallConstraintInitialize((ConstraintWidgetClass) superclass,
+		req_widget, new_widget, args, num_args);
+    LOCK_PROCESS;
+    initialize = class->constraint_class.initialize;
+    UNLOCK_PROCESS;
+    if (initialize)
+        (*initialize) (req_widget, new_widget, args, &num_args);
+}
+
+static Widget
+xtWidgetAlloc(
+    WidgetClass widget_class,
+    ConstraintWidgetClass parent_constraint_class,
+    Widget parent,
+    String name,
+    ArgList     args,		/* must be NULL if typed_args is non-NULL */
+    Cardinal    num_args,
+    XtTypedArgList typed_args,	/* must be NULL if args is non-NULL */
+    Cardinal	num_typed_args)
+{
+    Widget widget;
+    Cardinal                wsize, csize = 0;
+    ObjectClassExtension    ext;
+
+    LOCK_PROCESS;
+    if (! (widget_class->core_class.class_inited))
+	XtInitializeWidgetClass(widget_class);
+    ext = (ObjectClassExtension)
+	XtGetClassExtension(widget_class,
+			    XtOffsetOf(ObjectClassRec, object_class.extension),
+			    NULLQUARK, XtObjectExtensionVersion,
+			    sizeof(ObjectClassExtensionRec));
+    if (parent_constraint_class)
+	csize = parent_constraint_class->constraint_class.constraint_size;
+    if (ext && ext->allocate) {
+	XtAllocateProc allocate;
+	Cardinal extra = 0;
+	Cardinal nargs = num_args;
+	Cardinal ntyped = num_typed_args;
+	allocate = ext->allocate;
+	UNLOCK_PROCESS;
+	(*allocate)(widget_class, &csize, &extra, args, &nargs,
+		    typed_args, &ntyped, &widget, NULL);
+    } else {
+	wsize = widget_class->core_class.widget_size;
+	UNLOCK_PROCESS;
+	if (csize) {
+	    if (sizeof(struct {char a; double b;}) !=
+		(sizeof(struct {char a; unsigned long b;}) -
+		 sizeof(unsigned long) + sizeof(double))) {
+		if (csize && !(csize & (sizeof(double) - 1)))
+		    wsize = (wsize + sizeof(double) - 1) & ~(sizeof(double)-1);
+	    }
+	}
+	widget = (Widget) __XtMalloc((unsigned)(wsize + csize));
+	bzero(widget, wsize + csize);
+	widget->core.constraints =
+	    (csize ? (XtPointer)((char *)widget + wsize) : NULL);
+    }
+    widget->core.self = widget;
+    widget->core.parent = parent;
+    widget->core.widget_class = widget_class;
+    widget->core.xrm_name = StringToName((name != NULL) ? name : "");
+    widget->core.being_destroyed =
+	(parent != NULL ? parent->core.being_destroyed : FALSE);
+    return widget;
+}
+
+static void
+CompileCallbacks(
+    Widget widget)
+{
+    CallbackTable offsets;
+    InternalCallbackList* cl;
+    int i;
+
+    LOCK_PROCESS;
+    offsets = (CallbackTable)
+	widget->core.widget_class->core_class.callback_private;
+
+    for (i = (int)(long) *(offsets++); --i >= 0; offsets++) {
+	cl = (InternalCallbackList *)
+	    ((char *) widget - (*offsets)->xrm_offset - 1);
+	if (*cl)
+	    *cl = _XtCompileCallbackList((XtCallbackList) *cl);
+    }
+    UNLOCK_PROCESS;
+}
+
+static Widget
+xtCreate(
+    char        *name,
+    char        *class,
+    WidgetClass widget_class,
+    Widget      parent,
+    Screen*     default_screen, /* undefined when creating a nonwidget */
+    ArgList     args,		/* must be NULL if typed_args is non-NULL */
+    Cardinal    num_args,
+    XtTypedArgList typed_args,	/* must be NULL if args is non-NULL */
+    Cardinal	num_typed_args,
+    ConstraintWidgetClass parent_constraint_class,
+        /* NULL if not a subclass of Constraint or if child is popup shell */
+    XtWidgetProc post_proc)
+{
+    /* need to use strictest alignment rules possible in next two decls. */
+    double                  widget_cache[100];
+    double                  constraint_cache[20];
+    Widget                  req_widget;
+    XtPointer               req_constraints = NULL;
+    Cardinal                wsize, csize;
+    Widget	    	    widget;
+    XtCacheRef		    *cache_refs;
+    Cardinal		    i;
+    XtCreateHookDataRec     call_data;
+
+    widget = xtWidgetAlloc(widget_class, parent_constraint_class, parent,
+		name, args, num_args, typed_args, num_typed_args);
+
+    if (XtIsRectObj(widget)) {
+	widget->core.managed = FALSE;
+    }
+    if (XtIsWidget(widget)) {
+	widget->core.name = XrmNameToString(widget->core.xrm_name);
+        widget->core.screen = default_screen;
+        widget->core.tm.translations = NULL;
+	widget->core.window = (Window) 0;
+	widget->core.visible = TRUE;
+	widget->core.popup_list = NULL;
+	widget->core.num_popups = 0;
+    };
+    LOCK_PROCESS;
+    if (XtIsApplicationShell(widget)) {
+	ApplicationShellWidget a = (ApplicationShellWidget) widget;
+	if (class != NULL)
+	    a->application.xrm_class = StringToClass(class);
+	else
+	    a->application.xrm_class = widget_class->core_class.xrm_class;
+	a->application.class = XrmQuarkToString(a->application.xrm_class);
+    }
+    UNLOCK_PROCESS;
+
+    /* fetch resources */
+    cache_refs = _XtGetResources(widget, args, num_args,
+		typed_args, &num_typed_args);
+
+    /* Convert typed arg list to arg list */
+    if (typed_args != NULL && num_typed_args > 0) {
+	args = (ArgList)ALLOCATE_LOCAL(sizeof(Arg) * num_typed_args);
+	if (args == NULL) _XtAllocError(NULL);
+	for (i = 0; i < num_typed_args; i++) {
+	    args[i].name = typed_args[i].name;
+	    args[i].value = typed_args[i].value;
+	}
+	num_args = num_typed_args;
+    }
+
+    CompileCallbacks(widget);
+
+    if (cache_refs != NULL) {
+	XtAddCallback(widget, XtNdestroyCallback,
+		XtCallbackReleaseCacheRefList, (XtPointer)cache_refs );
+    }
+
+    wsize = widget_class->core_class.widget_size;
+    csize = 0;
+    req_widget = (Widget) XtStackAlloc(wsize, widget_cache);
+    (void) memmove ((char *) req_widget, (char *) widget, (int) wsize);
+    CallInitialize (XtClass(widget), req_widget, widget, args, num_args);
+    if (parent_constraint_class != NULL) {
+        csize = parent_constraint_class->constraint_class.constraint_size;
+	if (csize) {
+	    req_constraints = XtStackAlloc(csize, constraint_cache);
+	    (void) memmove((char*)req_constraints, widget->core.constraints,
+			(int)csize);
+	    req_widget->core.constraints = req_constraints;
+	} else req_widget->core.constraints = NULL;
+	CallConstraintInitialize(parent_constraint_class, req_widget, widget,
+		args, num_args);
+	if (csize) {
+	    XtStackFree(req_constraints, constraint_cache);
+	}
+    }
+    XtStackFree((XtPointer)req_widget, widget_cache);
+    if (post_proc != (XtWidgetProc) NULL) {
+	Widget hookobj;
+	(*post_proc)(widget);
+	hookobj = XtHooksOfDisplay((default_screen != (Screen*) NULL) ?
+		default_screen->display :
+		XtDisplayOfObject(parent));
+	if (XtHasCallbacks(hookobj, XtNcreateHook) == XtCallbackHasSome) {
+
+	    call_data.type = XtHcreate;
+	    call_data.widget = widget;
+	    call_data.args = args;
+	    call_data.num_args = num_args;
+	    XtCallCallbackList(hookobj,
+		((HookObject)hookobj)->hooks.createhook_callbacks,
+		(XtPointer)&call_data);
+	}
+    }
+    if (typed_args != NULL) {
+	while (num_typed_args-- > 0) {
+
+	    /* In GetResources we may have dynamically alloc'd store to hold */
+	    /* a copy of a resource which was larger then sizeof(XtArgVal). */
+	    /* We must free this store now in order to prevent a memory leak */
+	    /* A typed arg that has a converted value in dynamic store has a */
+	    /* negated size field. */
+
+	    if (typed_args->type != NULL && typed_args->size < 0) {
+		XtFree((char*)typed_args->value);
+		typed_args->size = -(typed_args->size);
+	    }
+	    typed_args++;
+	}
+	DEALLOCATE_LOCAL((char*)args);
+    }
+    return (widget);
+}
+
+static void
+widgetPostProc(Widget w)
+{
+    XtWidgetProc insert_child;
+    Widget parent = XtParent(w);
+    String param = XtName(w);
+    Cardinal num_params = 1;
+
+    if (XtIsComposite(parent)) {
+	LOCK_PROCESS;
+	insert_child = ((CompositeWidgetClass) parent->core.widget_class)->
+	    composite_class.insert_child;
+	UNLOCK_PROCESS;
+    } else {
+	return;
+    }
+    if (insert_child == NULL) {
+	XtAppErrorMsg(XtWidgetToApplicationContext(parent),
+		"nullProc","insertChild",XtCXtToolkitError,
+		"\"%s\" parent has NULL insert_child method",
+		&param, &num_params);
+    } else {
+	(*insert_child) (w);
+    }
+}
+
+Widget
+_XtCreateWidget(
+    String      name,
+    WidgetClass widget_class,
+    Widget      parent,
+    ArgList     args,
+    Cardinal    num_args,
+    XtTypedArgList typed_args,
+    Cardinal	num_typed_args)
+{
+    register Widget	    widget;
+    ConstraintWidgetClass   cwc;
+    Screen*                 default_screen;
+    XtEnum		    class_inited;
+    String		    params[3];
+    Cardinal		    num_params;
+
+    params[0] = name;
+    num_params = 1;
+
+    if (parent == NULL) {
+	XtErrorMsg("invalidParent", XtNxtCreateWidget, XtCXtToolkitError,
+		   "XtCreateWidget \"%s\" requires non-NULL parent",
+		   params, &num_params);
+    } else if (widget_class == NULL) {
+	XtAppErrorMsg(XtWidgetToApplicationContext(parent),
+		      "invalidClass", XtNxtCreateWidget, XtCXtToolkitError,
+		      "XtCreateWidget \"%s\" requires non-NULL widget class",
+		      params, &num_params);
+    }
+    LOCK_PROCESS;
+    if (!widget_class->core_class.class_inited)
+	XtInitializeWidgetClass(widget_class);
+    class_inited = widget_class->core_class.class_inited;
+    UNLOCK_PROCESS;
+    if ((class_inited & WidgetClassFlag) == 0) {
+	/* not a widget */
+	default_screen = NULL;
+	if (XtIsComposite(parent)) {
+	    CompositeClassExtension ext;
+	    ext = (CompositeClassExtension)
+		XtGetClassExtension(XtClass(parent),
+		      XtOffsetOf(CompositeClassRec, composite_class.extension),
+		      NULLQUARK, 1L, (Cardinal) 0);
+	    LOCK_PROCESS;
+	    if (ext &&
+		(ext->version > XtCompositeExtensionVersion ||
+		 ext->record_size > sizeof(CompositeClassExtensionRec))) {
+		params[1] = XtClass(parent)->core_class.class_name;
+		num_params = 2;
+		XtAppWarningMsg(XtWidgetToApplicationContext(parent),
+				"invalidExtension", XtNxtCreateWidget,
+				XtCXtToolkitError,
+	   "widget \"%s\" class %s has invalid CompositeClassExtension record",
+				params, &num_params);
+	    }
+	    if (!ext || !ext->accepts_objects) {
+		params[1] = XtName(parent);
+		num_params = 2;
+		XtAppErrorMsg(XtWidgetToApplicationContext(parent),
+			      "nonWidget", XtNxtCreateWidget,XtCXtToolkitError,
+"attempt to add non-widget child \"%s\" to parent \"%s\" which supports only widgets",
+			      params, &num_params);
+	    }
+	    UNLOCK_PROCESS;
+	}
+    } else {
+	default_screen = parent->core.screen;
+    }
+
+    if (XtIsConstraint(parent)) {
+	cwc = (ConstraintWidgetClass) parent->core.widget_class;
+    } else {
+	cwc = NULL;
+    }
+    widget = xtCreate(name, (char *)NULL, widget_class, parent,
+		default_screen, args, num_args,
+		typed_args, num_typed_args, cwc, widgetPostProc);
+    return (widget);
+}
+
+Widget
+XtCreateWidget(
+    _Xconst char* name,
+    WidgetClass widget_class,
+    Widget   	parent,
+    ArgList 	args,
+    Cardinal    num_args
+    )
+{
+    Widget retval;
+    WIDGET_TO_APPCON(parent);
+
+    LOCK_APP(app);
+    retval = _XtCreateWidget((String)name, widget_class, parent, args, num_args,
+		(XtTypedArgList)NULL, (Cardinal)0);
+    UNLOCK_APP(app);
+    return retval;
+}
+
+
+Widget
+XtCreateManagedWidget(
+    _Xconst char* name,
+    WidgetClass widget_class,
+    Widget      parent,
+    ArgList     args,
+    Cardinal    num_args
+    )
+{
+    register Widget	    widget;
+    WIDGET_TO_APPCON(parent);
+
+    LOCK_APP(app);
+    XtCheckSubclass(parent, compositeWidgetClass, "in XtCreateManagedWidget");
+    widget = _XtCreateWidget((String)name, widget_class, parent, args,
+		num_args, (XtTypedArgList)NULL, (Cardinal) 0);
+    XtManageChild(widget);
+    UNLOCK_APP(app);
+    return widget;
+}
+
+static void
+popupPostProc(Widget w)
+{
+    Widget parent = XtParent(w);
+
+    parent->core.popup_list =
+	(WidgetList) XtRealloc((char*) parent->core.popup_list,
+		(unsigned) (parent->core.num_popups+1) * sizeof(Widget));
+    parent->core.popup_list[parent->core.num_popups++] = w;
+}
+
+Widget
+_XtCreatePopupShell(
+    String      name,
+    WidgetClass widget_class,
+    Widget      parent,
+    ArgList     args,
+    Cardinal    num_args,
+    XtTypedArgList      typed_args,
+    Cardinal            num_typed_args)
+{
+    register Widget widget;
+    Screen* default_screen;
+
+    if (parent == NULL) {
+	XtErrorMsg("invalidParent",XtNxtCreatePopupShell,XtCXtToolkitError,
+		"XtCreatePopupShell requires non-NULL parent",
+		(String *)NULL, (Cardinal *)NULL);
+    } else if (widget_class == NULL) {
+	XtAppErrorMsg(XtWidgetToApplicationContext(parent),
+		"invalidClass",XtNxtCreatePopupShell,XtCXtToolkitError,
+		"XtCreatePopupShell requires non-NULL widget class",
+		(String *)NULL, (Cardinal *)NULL);
+    }
+    XtCheckSubclass(parent, coreWidgetClass, "in XtCreatePopupShell");
+    default_screen = parent->core.screen;
+    widget = xtCreate(name, (char *)NULL, widget_class, parent,
+		default_screen, args, num_args, typed_args,
+		num_typed_args, (ConstraintWidgetClass)NULL,
+		popupPostProc);
+
+#ifndef X_NO_RESOURCE_CONFIGURATION_MANAGEMENT
+    XtAddEventHandler (widget, (EventMask) PropertyChangeMask, FALSE,
+		(XtEventHandler) _XtResourceConfigurationEH, NULL);
+#endif
+    return(widget);
+}
+
+Widget
+XtCreatePopupShell(
+    _Xconst char* name,
+    WidgetClass widget_class,
+    Widget      parent,
+    ArgList     args,
+    Cardinal    num_args
+    )
+{
+    Widget retval;
+    WIDGET_TO_APPCON(parent);
+
+    LOCK_APP(app);
+    retval = _XtCreatePopupShell((String)name, widget_class, parent, args,
+		num_args, (XtTypedArgList)NULL, (Cardinal)0);
+    UNLOCK_APP(app);
+    return retval;
+}
+
+Widget
+_XtAppCreateShell(
+    String      name,
+    String      class,
+    WidgetClass widget_class,
+    Display*    display,
+    ArgList     args,
+    Cardinal    num_args,
+    XtTypedArgList typed_args,
+    Cardinal	num_typed_args)
+{
+    Widget shell;
+
+    if (widget_class == NULL) {
+	XtAppErrorMsg(XtDisplayToApplicationContext(display),
+		"invalidClass","xtAppCreateShell",XtCXtToolkitError,
+		"XtAppCreateShell requires non-NULL widget class",
+		(String *)NULL, (Cardinal *)NULL);
+    }
+    if (name == NULL)
+	name = XrmNameToString(_XtGetPerDisplay(display)->name);
+    shell = xtCreate(name, class, widget_class, (Widget)NULL,
+		(Screen*)DefaultScreenOfDisplay(display),
+		args, num_args, typed_args, num_typed_args,
+		(ConstraintWidgetClass) NULL, _XtAddShellToHookObj);
+
+#ifndef X_NO_RESOURCE_CONFIGURATION_MANAGEMENT
+    XtAddEventHandler (shell, (EventMask) PropertyChangeMask, FALSE,
+		(XtEventHandler) _XtResourceConfigurationEH, NULL);
+#endif
+
+    return shell;
+}
+
+Widget
+XtAppCreateShell(
+    _Xconst char*       name,
+    _Xconst char*       class,
+    WidgetClass         widget_class,
+    Display             *display,
+    ArgList             args,
+    Cardinal            num_args
+    )
+{
+    Widget retval;
+    DPY_TO_APPCON(display);
+
+    LOCK_APP(app);
+    retval = _XtAppCreateShell((String)name, (String)class, widget_class,
+		display, args, num_args, (XtTypedArgList)NULL, (Cardinal)0);
+    UNLOCK_APP(app);
+    return retval;
+}
+
+/* ARGSUSED */
+Widget
+XtCreateApplicationShell(
+    _Xconst char* name,		/* unused in R3 and later */
+    WidgetClass widget_class,
+    ArgList     args,
+    Cardinal    num_args
+    )
+{
+    Widget retval;
+    Display* dpy;
+    XrmClass class;
+    XtAppContext app = _XtDefaultAppContext();
+
+    LOCK_APP(app);
+    dpy = app->list[0];
+    class = _XtGetPerDisplay(dpy)->class;
+
+    retval = _XtAppCreateShell((String)NULL, XrmQuarkToString((XrmQuark)class),
+		widget_class, dpy, args, num_args,
+		(XtTypedArgList)NULL, (Cardinal)0);
+    UNLOCK_APP(app);
+    return retval;
+}
+
+Widget
+_XtCreateHookObj(Screen* screen)
+{
+    Widget req_widget;
+    double widget_cache[100];
+    Cardinal wsize = 0;
+    Widget hookobj = xtWidgetAlloc(hookObjectClass,
+		(ConstraintWidgetClass)NULL,
+		(Widget)NULL, "hooks",
+		(ArgList)NULL, (Cardinal)0,
+		(XtTypedArgList)NULL, (Cardinal)0);
+
+    ((HookObject)hookobj)->hooks.screen = screen;
+    (void) _XtGetResources(hookobj, (ArgList)NULL, 0,
+		(XtTypedArgList)NULL, &wsize);
+    CompileCallbacks(hookobj);
+    wsize = hookObjectClass->core_class.widget_size;
+    req_widget = (Widget) XtStackAlloc(wsize, widget_cache);
+    (void) memmove ((char *) req_widget, (char *) hookobj, (int) wsize);
+    CallInitialize (hookObjectClass, req_widget, hookobj,
+		(ArgList)NULL, (Cardinal) 0);
+    XtStackFree((XtPointer)req_widget, widget_cache);
+    return hookobj;
+}