Initial revision

1 files changed, 4813 insertions, 0 deletions

diff --git a/unix/tkUnixWm.c b/unix/tkUnixWm.c
new file mode 100644
index 0000000..0c26c9b
--- /dev/null
+++ b/unix/tkUnixWm.c
@@ -0,0 +1,4813 @@
+/* 
+ * tkUnixWm.c --
+ *
+ *	This module takes care of the interactions between a Tk-based
+ *	application and the window manager.  Among other things, it
+ *	implements the "wm" command and passes geometry information
+ *	to the window manager.
+ *
+ * Copyright (c) 1991-1994 The Regents of the University of California.
+ * Copyright (c) 1994-1997 Sun Microsystems, Inc.
+ *
+ * See the file "license.terms" for information on usage and redistribution
+ * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ *
+ * SCCS: @(#) tkUnixWm.c 1.155 97/10/28 08:35:19
+ */
+
+#include "tkPort.h"
+#include "tkInt.h"
+#include "tkUnixInt.h"
+#include <errno.h>
+
+/*
+ * A data structure of the following type holds information for
+ * each window manager protocol (such as WM_DELETE_WINDOW) for
+ * which a handler (i.e. a Tcl command) has been defined for a
+ * particular top-level window.
+ */
+
+typedef struct ProtocolHandler {
+    Atom protocol;		/* Identifies the protocol. */
+    struct ProtocolHandler *nextPtr;
+				/* Next in list of protocol handlers for
+				 * the same top-level window, or NULL for
+				 * end of list. */
+    Tcl_Interp *interp;		/* Interpreter in which to invoke command. */
+    char command[4];		/* Tcl command to invoke when a client
+				 * message for this protocol arrives. 
+				 * The actual size of the structure varies
+				 * to accommodate the needs of the actual
+				 * command. THIS MUST BE THE LAST FIELD OF
+				 * THE STRUCTURE. */
+} ProtocolHandler;
+
+#define HANDLER_SIZE(cmdLength) \
+    ((unsigned) (sizeof(ProtocolHandler) - 3 + cmdLength))
+
+/*
+ * A data structure of the following type holds window-manager-related
+ * information for each top-level window in an application.
+ */
+
+typedef struct TkWmInfo {
+    TkWindow *winPtr;		/* Pointer to main Tk information for
+				 * this window. */
+    Window reparent;		/* If the window has been reparented, this
+				 * gives the ID of the ancestor of the window
+				 * that is a child of the root window (may
+				 * not be window's immediate parent).  If
+				 * the window isn't reparented, this has the
+				 * value None. */
+    char *title;		/* Title to display in window caption.  If
+				 * NULL, use name of widget.  Malloced. */
+    char *iconName;		/* Name to display in icon.  Malloced. */
+    Window master;		/* Master window for TRANSIENT_FOR property,
+				 * or None. */
+    XWMHints hints;		/* Various pieces of information for
+				 * window manager. */
+    char *leaderName;		/* Path name of leader of window group
+				 * (corresponds to hints.window_group).
+				 * Malloc-ed.  Note:  this field doesn't
+				 * get updated if leader is destroyed. */
+    char *masterWindowName;	/* Path name of window specified as master
+				 * in "wm transient" command, or NULL.
+				 * Malloc-ed. Note:  this field doesn't
+				 * get updated if masterWindowName is
+				 * destroyed. */
+    Tk_Window icon;		/* Window to use as icon for this window,
+				 * or NULL. */
+    Tk_Window iconFor;		/* Window for which this window is icon, or
+				 * NULL if this isn't an icon for anyone. */
+    int withdrawn;		/* Non-zero means window has been withdrawn. */
+
+    /*
+     * In order to support menubars transparently under X, each toplevel
+     * window is encased in an additional window, called the wrapper,
+     * that holds the toplevel and the menubar, if any.  The information
+     * below is used to keep track of the wrapper and the menubar.
+     */
+
+    TkWindow *wrapperPtr;	/* Pointer to information about the wrapper.
+				 * This is the "real" toplevel window as
+				 * seen by the window manager. Although
+				 * this is an official Tk window, it
+				 * doesn't appear in the application's
+				 * window hierarchy.  NULL means that
+				 * the wrapper hasn't been created yet. */
+    Tk_Window menubar;		/* Pointer to information about the
+				 * menubar, or NULL if there is no
+				 * menubar for this toplevel. */
+    int menuHeight;		/* Amount of vertical space needed for
+				 * menubar, measured in pixels.  If
+				 * menubar is non-NULL, this is >= 1 (X
+				 * servers don't like dimensions of 0). */
+
+    /*
+     * Information used to construct an XSizeHints structure for
+     * the window manager:
+     */
+
+    int sizeHintsFlags;		/* Flags word for XSizeHints structure.
+				 * If the PBaseSize flag is set then the
+				 * window is gridded;  otherwise it isn't
+				 * gridded. */
+    int minWidth, minHeight;	/* Minimum dimensions of window, in
+				 * grid units, not pixels. */
+    int maxWidth, maxHeight;	/* Maximum dimensions of window, in
+				 * grid units, not pixels. */
+    Tk_Window gridWin;		/* Identifies the window that controls
+				 * gridding for this top-level, or NULL if
+				 * the top-level isn't currently gridded. */
+    int widthInc, heightInc;	/* Increments for size changes (# pixels
+				 * per step). */
+    struct {
+	int x;	/* numerator */
+	int y;  /* denominator */
+    } minAspect, maxAspect;	/* Min/max aspect ratios for window. */
+    int reqGridWidth, reqGridHeight;
+				/* The dimensions of the window (in
+				 * grid units) requested through
+				 * the geometry manager. */
+    int gravity;		/* Desired window gravity. */
+
+    /*
+     * Information used to manage the size and location of a window.
+     */
+
+    int width, height;		/* Desired dimensions of window, specified
+				 * in grid units.  These values are
+				 * set by the "wm geometry" command and by
+				 * ConfigureNotify events (for when wm
+				 * resizes window).  -1 means user hasn't
+				 * requested dimensions. */
+    int x, y;			/* Desired X and Y coordinates for window.
+				 * These values are set by "wm geometry",
+				 * plus by ConfigureNotify events (when wm
+				 * moves window).  These numbers are
+				 * different than the numbers stored in
+				 * winPtr->changes because (a) they could be
+				 * measured from the right or bottom edge
+				 * of the screen (see WM_NEGATIVE_X and
+				 * WM_NEGATIVE_Y flags) and (b) if the window
+				 * has been reparented then they refer to the
+				 * parent rather than the window itself. */
+    int parentWidth, parentHeight;
+				/* Width and height of reparent, in pixels
+				 * *including border*.  If window hasn't been
+				 * reparented then these will be the outer
+				 * dimensions of the window, including
+				 * border. */
+    int xInParent, yInParent;	/* Offset of wrapperPtr within reparent,
+				 * measured in pixels from upper-left outer
+				 * corner of reparent's border to upper-left
+				 * outer corner of wrapperPtr's border.  If
+				 * not reparented then these are zero. */
+    int configWidth, configHeight;
+				/* Dimensions passed to last request that we
+				 * issued to change geometry of the wrapper.
+				 * Used to eliminate redundant resize
+				 * operations. */
+
+    /*
+     * Information about the virtual root window for this top-level,
+     * if there is one.
+     */
+
+    Window vRoot;		/* Virtual root window for this top-level,
+				 * or None if there is no virtual root
+				 * window (i.e. just use the screen's root). */
+    int vRootX, vRootY;		/* Position of the virtual root inside the
+				 * root window.  If the WM_VROOT_OFFSET_STALE
+				 * flag is set then this information may be
+				 * incorrect and needs to be refreshed from
+				 * the X server.  If vRoot is None then these
+				 * values are both 0. */
+    int vRootWidth, vRootHeight;/* Dimensions of the virtual root window.
+				 * If vRoot is None, gives the dimensions
+				 * of the containing screen.  This information
+				 * is never stale, even though vRootX and
+				 * vRootY can be. */
+
+    /*
+     * Miscellaneous information.
+     */
+
+    ProtocolHandler *protPtr;	/* First in list of protocol handlers for
+				 * this window (NULL means none). */
+    int cmdArgc;		/* Number of elements in cmdArgv below. */
+    char **cmdArgv;		/* Array of strings to store in the
+				 * WM_COMMAND property.  NULL means nothing
+				 * available. */
+    char *clientMachine;	/* String to store in WM_CLIENT_MACHINE
+				 * property, or NULL. */
+    int flags;			/* Miscellaneous flags, defined below. */
+    struct TkWmInfo *nextPtr;	/* Next in list of all top-level windows. */
+} WmInfo;
+
+/*
+ * Flag values for WmInfo structures:
+ *
+ * WM_NEVER_MAPPED -		non-zero means window has never been
+ *				mapped;  need to update all info when
+ *				window is first mapped.
+ * WM_UPDATE_PENDING -		non-zero means a call to UpdateGeometryInfo
+ *				has already been scheduled for this
+ *				window;  no need to schedule another one.
+ * WM_NEGATIVE_X -		non-zero means x-coordinate is measured in
+ *				pixels from right edge of screen, rather
+ *				than from left edge.
+ * WM_NEGATIVE_Y -		non-zero means y-coordinate is measured in
+ *				pixels up from bottom of screen, rather than
+ *				down from top.
+ * WM_UPDATE_SIZE_HINTS -	non-zero means that new size hints need to be
+ *				propagated to window manager.
+ * WM_SYNC_PENDING -		set to non-zero while waiting for the window
+ *				manager to respond to some state change.
+ * WM_VROOT_OFFSET_STALE -	non-zero means that (x,y) offset information
+ *				about the virtual root window is stale and
+ *				needs to be fetched fresh from the X server.
+ * WM_ABOUT_TO_MAP -		non-zero means that the window is about to
+ *				be mapped by TkWmMapWindow.  This is used
+ *				by UpdateGeometryInfo to modify its behavior.
+ * WM_MOVE_PENDING -		non-zero means the application has requested
+ *				a new position for the window, but it hasn't
+ *				been reflected through the window manager
+ *				yet.
+ * WM_COLORMAPS_EXPLICIT -	non-zero means the colormap windows were
+ *				set explicitly via "wm colormapwindows".
+ * WM_ADDED_TOPLEVEL_COLORMAP - non-zero means that when "wm colormapwindows"
+ *				was called the top-level itself wasn't
+ *				specified, so we added it implicitly at
+ *				the end of the list.
+ * WM_WIDTH_NOT_RESIZABLE -	non-zero means that we're not supposed to
+ *				allow the user to change the width of the
+ *				window (controlled by "wm resizable"
+ *				command).
+ * WM_HEIGHT_NOT_RESIZABLE -	non-zero means that we're not supposed to
+ *				allow the user to change the height of the
+ *				window (controlled by "wm resizable"
+ *				command).
+ */
+
+#define WM_NEVER_MAPPED			1
+#define WM_UPDATE_PENDING		2
+#define WM_NEGATIVE_X			4
+#define WM_NEGATIVE_Y			8
+#define WM_UPDATE_SIZE_HINTS		0x10
+#define WM_SYNC_PENDING			0x20
+#define WM_VROOT_OFFSET_STALE		0x40
+#define WM_ABOUT_TO_MAP			0x100
+#define WM_MOVE_PENDING			0x200
+#define WM_COLORMAPS_EXPLICIT		0x400
+#define WM_ADDED_TOPLEVEL_COLORMAP	0x800
+#define WM_WIDTH_NOT_RESIZABLE		0x1000
+#define WM_HEIGHT_NOT_RESIZABLE		0x2000
+
+/*
+ * This module keeps a list of all top-level windows, primarily to
+ * simplify the job of Tk_CoordsToWindow.
+ */
+
+static WmInfo *firstWmPtr = NULL;	/* Points to first top-level window. */
+
+
+/*
+ * The variable below is used to enable or disable tracing in this
+ * module.  If tracing is enabled, then information is printed on
+ * standard output about interesting interactions with the window
+ * manager.
+ */
+
+static int wmTracing = 0;
+
+/*
+ * The following structures are the official type records for geometry
+ * management of top-level and menubar windows.
+ */
+
+static void		TopLevelReqProc _ANSI_ARGS_((ClientData dummy,
+			    Tk_Window tkwin));
+
+static Tk_GeomMgr wmMgrType = {
+    "wm",				/* name */
+    TopLevelReqProc,			/* requestProc */
+    (Tk_GeomLostSlaveProc *) NULL,	/* lostSlaveProc */
+};
+
+static void		MenubarReqProc _ANSI_ARGS_((ClientData clientData,
+			    Tk_Window tkwin));
+
+static Tk_GeomMgr menubarMgrType = {
+    "menubar",				/* name */
+    MenubarReqProc,			/* requestProc */
+    (Tk_GeomLostSlaveProc *) NULL,	/* lostSlaveProc */
+};
+
+/*
+ * Structures of the following type are used for communication between
+ * WaitForEvent, WaitRestrictProc, and WaitTimeoutProc.
+ */
+
+typedef struct WaitRestrictInfo {
+    Display *display;		/* Window belongs to this display. */
+    Window window;		/* We're waiting for events on this window. */
+    int type;			/* We only care about this type of event. */
+    XEvent *eventPtr;		/* Where to store the event when it's found. */
+    int foundEvent;		/* Non-zero means that an event of the
+				 * desired type has been found. */
+} WaitRestrictInfo;
+
+/*
+ * Forward declarations for procedures defined in this file:
+ */
+
+static int		ComputeReparentGeometry _ANSI_ARGS_((WmInfo *wmPtr));
+static void		ConfigureEvent _ANSI_ARGS_((WmInfo *wmPtr,
+			    XConfigureEvent *eventPtr));
+static void		CreateWrapper _ANSI_ARGS_((WmInfo *wmPtr));
+static void		GetMaxSize _ANSI_ARGS_((WmInfo *wmPtr,
+			    int *maxWidthPtr, int *maxHeightPtr));
+static void		MenubarDestroyProc _ANSI_ARGS_((ClientData clientData,
+			    XEvent *eventPtr));
+static int		ParseGeometry _ANSI_ARGS_((Tcl_Interp *interp,
+			    char *string, TkWindow *winPtr));
+static void		ReparentEvent _ANSI_ARGS_((WmInfo *wmPtr,
+			    XReparentEvent *eventPtr));
+static void		TopLevelReqProc _ANSI_ARGS_((ClientData dummy,
+			    Tk_Window tkwin));
+static void		UpdateGeometryInfo _ANSI_ARGS_((
+			    ClientData clientData));
+static void		UpdateHints _ANSI_ARGS_((TkWindow *winPtr));
+static void		UpdateSizeHints _ANSI_ARGS_((TkWindow *winPtr));
+static void		UpdateVRootGeometry _ANSI_ARGS_((WmInfo *wmPtr));
+static void		UpdateWmProtocols _ANSI_ARGS_((WmInfo *wmPtr));
+static void		WaitForConfigureNotify _ANSI_ARGS_((TkWindow *winPtr,
+			    unsigned long serial));
+static int		WaitForEvent _ANSI_ARGS_((Display *display,
+			    Window window, int type, XEvent *eventPtr));
+static void		WaitForMapNotify _ANSI_ARGS_((TkWindow *winPtr,
+			    int mapped));
+static Tk_RestrictAction
+			WaitRestrictProc _ANSI_ARGS_((ClientData clientData,
+			    XEvent *eventPtr));
+static void		WrapperEventProc _ANSI_ARGS_((ClientData clientData,
+			    XEvent *eventPtr));
+
+/*
+ *--------------------------------------------------------------
+ *
+ * TkWmNewWindow --
+ *
+ *	This procedure is invoked whenever a new top-level
+ *	window is created.  Its job is to initialize the WmInfo
+ *	structure for the window.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	A WmInfo structure gets allocated and initialized.
+ *
+ *--------------------------------------------------------------
+ */
+
+void
+TkWmNewWindow(winPtr)
+    TkWindow *winPtr;		/* Newly-created top-level window. */
+{
+    register WmInfo *wmPtr;
+
+    wmPtr = (WmInfo *) ckalloc(sizeof(WmInfo));
+    wmPtr->winPtr = winPtr;
+    wmPtr->reparent = None;
+    wmPtr->title = NULL;
+    wmPtr->iconName = NULL;
+    wmPtr->master = None;
+    wmPtr->hints.flags = InputHint | StateHint;
+    wmPtr->hints.input = True;
+    wmPtr->hints.initial_state = NormalState;
+    wmPtr->hints.icon_pixmap = None;
+    wmPtr->hints.icon_window = None;
+    wmPtr->hints.icon_x = wmPtr->hints.icon_y = 0;
+    wmPtr->hints.icon_mask = None;
+    wmPtr->hints.window_group = None;
+    wmPtr->leaderName = NULL;
+    wmPtr->masterWindowName = NULL;
+    wmPtr->icon = NULL;
+    wmPtr->iconFor = NULL;
+    wmPtr->withdrawn = 0;
+    wmPtr->wrapperPtr = NULL;
+    wmPtr->menubar = NULL;
+    wmPtr->menuHeight = 0;
+    wmPtr->sizeHintsFlags = 0;
+    wmPtr->minWidth = wmPtr->minHeight = 1;
+
+    /*
+     * Default the maximum dimensions to the size of the display, minus
+     * a guess about how space is needed for window manager decorations.
+     */
+
+    wmPtr->maxWidth = 0;
+    wmPtr->maxHeight = 0;
+    wmPtr->gridWin = NULL;
+    wmPtr->widthInc = wmPtr->heightInc = 1;
+    wmPtr->minAspect.x = wmPtr->minAspect.y = 1;
+    wmPtr->maxAspect.x = wmPtr->maxAspect.y = 1;
+    wmPtr->reqGridWidth = wmPtr->reqGridHeight = -1;
+    wmPtr->gravity = NorthWestGravity;
+    wmPtr->width = -1;
+    wmPtr->height = -1;
+    wmPtr->x = winPtr->changes.x;
+    wmPtr->y = winPtr->changes.y;
+    wmPtr->parentWidth = winPtr->changes.width
+	    + 2*winPtr->changes.border_width;
+    wmPtr->parentHeight = winPtr->changes.height
+	    + 2*winPtr->changes.border_width;
+    wmPtr->xInParent = wmPtr->yInParent = 0;
+    wmPtr->configWidth = -1;
+    wmPtr->configHeight = -1;
+    wmPtr->vRoot = None;
+    wmPtr->protPtr = NULL;
+    wmPtr->cmdArgv = NULL;
+    wmPtr->clientMachine = NULL;
+    wmPtr->flags = WM_NEVER_MAPPED;
+    wmPtr->nextPtr = firstWmPtr;
+    firstWmPtr = wmPtr;
+    winPtr->wmInfoPtr = wmPtr;
+
+    UpdateVRootGeometry(wmPtr);
+
+    /*
+     * Arrange for geometry requests to be reflected from the window
+     * to the window manager.
+     */
+
+    Tk_ManageGeometry((Tk_Window) winPtr, &wmMgrType, (ClientData) 0);
+}
+
+/*
+ *--------------------------------------------------------------
+ *
+ * TkWmMapWindow --
+ *
+ *	This procedure is invoked to map a top-level window.  This
+ *	module gets a chance to update all window-manager-related
+ *	information in properties before the window manager sees
+ *	the map event and checks the properties.  It also gets to
+ *	decide whether or not to even map the window after all.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	Properties of winPtr may get updated to provide up-to-date
+ *	information to the window manager.  The window may also get
+ *	mapped, but it may not be if this procedure decides that
+ *	isn't appropriate (e.g. because the window is withdrawn).
+ *
+ *--------------------------------------------------------------
+ */
+
+void
+TkWmMapWindow(winPtr)
+    TkWindow *winPtr;		/* Top-level window that's about to
+				 * be mapped. */
+{
+    register WmInfo *wmPtr = winPtr->wmInfoPtr;
+    XTextProperty textProp;
+    char *string;
+
+    if (wmPtr->flags & WM_NEVER_MAPPED) {
+	wmPtr->flags &= ~WM_NEVER_MAPPED;
+
+	/*
+	 * This is the first time this window has ever been mapped.
+	 * First create the wrapper window that provides space for a
+	 * menubar.
+	 */
+
+	if (wmPtr->wrapperPtr == NULL) {
+	    CreateWrapper(wmPtr);
+	}
+
+	/*
+	 * Store all the window-manager-related information for the
+	 * window.
+	 */
+
+	string = (wmPtr->title != NULL) ? wmPtr->title : winPtr->nameUid;
+	if (XStringListToTextProperty(&string, 1, &textProp)  != 0) {
+	    XSetWMName(winPtr->display, wmPtr->wrapperPtr->window, &textProp);
+	    XFree((char *) textProp.value);
+	}
+    
+	TkWmSetClass(winPtr);
+
+	if (wmPtr->iconName != NULL) {
+	    XSetIconName(winPtr->display, wmPtr->wrapperPtr->window,
+		    wmPtr->iconName);
+	}
+    
+	if (wmPtr->master != None) {
+	    XSetTransientForHint(winPtr->display, wmPtr->wrapperPtr->window,
+		    wmPtr->master);
+	}
+    
+	wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
+	UpdateHints(winPtr);
+	UpdateWmProtocols(wmPtr);
+	if (wmPtr->cmdArgv != NULL) {
+	    XSetCommand(winPtr->display, wmPtr->wrapperPtr->window,
+		    wmPtr->cmdArgv, wmPtr->cmdArgc);
+	}
+	if (wmPtr->clientMachine != NULL) {
+	    if (XStringListToTextProperty(&wmPtr->clientMachine, 1, &textProp)
+		    != 0) {
+		XSetWMClientMachine(winPtr->display, wmPtr->wrapperPtr->window,
+			&textProp);
+		XFree((char *) textProp.value);
+	    }
+	}
+    }
+    if (wmPtr->hints.initial_state == WithdrawnState) {
+	return;
+    }
+    if (wmPtr->iconFor != NULL) {
+	/*
+	 * This window is an icon for somebody else.  Make sure that
+	 * the geometry is up-to-date, then return without mapping
+	 * the window.
+	 */
+
+	if (wmPtr->flags & WM_UPDATE_PENDING) {
+	    Tcl_CancelIdleCall(UpdateGeometryInfo, (ClientData) winPtr);
+	}
+	UpdateGeometryInfo((ClientData) winPtr);
+	return;
+    }
+    wmPtr->flags |= WM_ABOUT_TO_MAP;
+    if (wmPtr->flags & WM_UPDATE_PENDING) {
+	Tcl_CancelIdleCall(UpdateGeometryInfo, (ClientData) winPtr);
+    }
+    UpdateGeometryInfo((ClientData) winPtr);
+    wmPtr->flags &= ~WM_ABOUT_TO_MAP;
+
+    /*
+     * Map the window, then wait to be sure that the window manager has
+     * processed the map operation.
+     */
+
+    XMapWindow(winPtr->display, wmPtr->wrapperPtr->window);
+    if (wmPtr->hints.initial_state == NormalState) {
+	WaitForMapNotify(winPtr, 1);
+    }
+}
+
+/*
+ *--------------------------------------------------------------
+ *
+ * TkWmUnmapWindow --
+ *
+ *	This procedure is invoked to unmap a top-level window.  The
+ *	only thing it does special is to wait for the window actually
+ *	to be unmapped.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	Unmaps the window.
+ *
+ *--------------------------------------------------------------
+ */
+
+void
+TkWmUnmapWindow(winPtr)
+    TkWindow *winPtr;		/* Top-level window that's about to
+				 * be mapped. */
+{
+    /*
+     * It seems to be important to wait after unmapping a top-level
+     * window until the window really gets unmapped.  I don't completely
+     * understand all the interactions with the window manager, but if
+     * we go on without waiting, and if the window is then mapped again
+     * quickly, events seem to get lost so that we think the window isn't
+     * mapped when in fact it is mapped.  I suspect that this has something
+     * to do with the window manager filtering Map events (and possily not
+     * filtering Unmap events?).
+     */ 
+    XUnmapWindow(winPtr->display, winPtr->wmInfoPtr->wrapperPtr->window);
+    WaitForMapNotify(winPtr, 0);
+}
+
+/*
+ *--------------------------------------------------------------
+ *
+ * TkWmDeadWindow --
+ *
+ *	This procedure is invoked when a top-level window is
+ *	about to be deleted.  It cleans up the wm-related data
+ *	structures for the window.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	The WmInfo structure for winPtr gets freed up.
+ *
+ *--------------------------------------------------------------
+ */
+
+void
+TkWmDeadWindow(winPtr)
+    TkWindow *winPtr;		/* Top-level window that's being deleted. */
+{
+    register WmInfo *wmPtr = winPtr->wmInfoPtr;
+    WmInfo *wmPtr2;
+
+    if (wmPtr == NULL) {
+	return;
+    }
+    if (firstWmPtr == wmPtr) {
+	firstWmPtr = wmPtr->nextPtr;
+    } else {
+	register WmInfo *prevPtr;
+
+	for (prevPtr = firstWmPtr; ; prevPtr = prevPtr->nextPtr) {
+	    if (prevPtr == NULL) {
+		panic("couldn't unlink window in TkWmDeadWindow");
+	    }
+	    if (prevPtr->nextPtr == wmPtr) {
+		prevPtr->nextPtr = wmPtr->nextPtr;
+		break;
+	    }
+	}
+    }
+    if (wmPtr->title != NULL) {
+	ckfree(wmPtr->title);
+    }
+    if (wmPtr->iconName != NULL) {
+	ckfree(wmPtr->iconName);
+    }
+    if (wmPtr->hints.flags & IconPixmapHint) {
+	Tk_FreeBitmap(winPtr->display, wmPtr->hints.icon_pixmap);
+    }
+    if (wmPtr->hints.flags & IconMaskHint) {
+	Tk_FreeBitmap(winPtr->display, wmPtr->hints.icon_mask);
+    }
+    if (wmPtr->leaderName != NULL) {
+	ckfree(wmPtr->leaderName);
+    }
+    if (wmPtr->masterWindowName != NULL) {
+	ckfree(wmPtr->masterWindowName);
+    }
+    if (wmPtr->icon != NULL) {
+	wmPtr2 = ((TkWindow *) wmPtr->icon)->wmInfoPtr;
+	wmPtr2->iconFor = NULL;
+	wmPtr2->withdrawn = 1;
+    }
+    if (wmPtr->iconFor != NULL) {
+	wmPtr2 = ((TkWindow *) wmPtr->iconFor)->wmInfoPtr;
+	wmPtr2->icon = NULL;
+	wmPtr2->hints.flags &= ~IconWindowHint;
+	UpdateHints((TkWindow *) wmPtr->iconFor);
+    }
+    if (wmPtr->menubar != NULL) {
+	Tk_DestroyWindow(wmPtr->menubar);
+    }
+    if (wmPtr->wrapperPtr != NULL) {
+	/*
+	 * The rest of Tk doesn't know that we reparent the toplevel
+	 * inside the wrapper, so reparent it back out again before
+	 * deleting the wrapper; otherwise the toplevel will get deleted
+	 * twice (once implicitly by the deletion of the wrapper).
+	 */
+
+	XUnmapWindow(winPtr->display, winPtr->window);
+	XReparentWindow(winPtr->display, winPtr->window,
+		XRootWindow(winPtr->display, winPtr->screenNum), 0, 0);
+	Tk_DestroyWindow((Tk_Window) wmPtr->wrapperPtr);
+    }
+    while (wmPtr->protPtr != NULL) {
+	ProtocolHandler *protPtr;
+
+	protPtr = wmPtr->protPtr;
+	wmPtr->protPtr = protPtr->nextPtr;
+	Tcl_EventuallyFree((ClientData) protPtr, TCL_DYNAMIC);
+    }
+    if (wmPtr->cmdArgv != NULL) {
+	ckfree((char *) wmPtr->cmdArgv);
+    }
+    if (wmPtr->clientMachine != NULL) {
+	ckfree((char *) wmPtr->clientMachine);
+    }
+    if (wmPtr->flags & WM_UPDATE_PENDING) {
+	Tcl_CancelIdleCall(UpdateGeometryInfo, (ClientData) winPtr);
+    }
+    ckfree((char *) wmPtr);
+    winPtr->wmInfoPtr = NULL;
+}
+
+/*
+ *--------------------------------------------------------------
+ *
+ * TkWmSetClass --
+ *
+ *	This procedure is invoked whenever a top-level window's
+ *	class is changed.  If the window has been mapped then this
+ *	procedure updates the window manager property for the
+ *	class.  If the window hasn't been mapped, the update is
+ *	deferred until just before the first mapping.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	A window property may get updated.
+ *
+ *--------------------------------------------------------------
+ */
+
+void
+TkWmSetClass(winPtr)
+    TkWindow *winPtr;		/* Newly-created top-level window. */
+{
+    if (winPtr->wmInfoPtr->flags & WM_NEVER_MAPPED) {
+	return;
+    }
+
+    if (winPtr->classUid != NULL) {
+	XClassHint *classPtr;
+
+	classPtr = XAllocClassHint();
+	classPtr->res_name = winPtr->nameUid;
+	classPtr->res_class = winPtr->classUid;
+	XSetClassHint(winPtr->display, winPtr->wmInfoPtr->wrapperPtr->window,
+		classPtr);
+	XFree((char *) classPtr);
+    }
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * Tk_WmCmd --
+ *
+ *	This procedure is invoked to process the "wm" Tcl command.
+ *	See the user documentation for details on what it does.
+ *
+ * Results:
+ *	A standard Tcl result.
+ *
+ * Side effects:
+ *	See the user documentation.
+ *
+ *----------------------------------------------------------------------
+ */
+
+	/* ARGSUSED */
+int
+Tk_WmCmd(clientData, interp, argc, argv)
+    ClientData clientData;	/* Main window associated with
+				 * interpreter. */
+    Tcl_Interp *interp;		/* Current interpreter. */
+    int argc;			/* Number of arguments. */
+    char **argv;		/* Argument strings. */
+{
+    Tk_Window tkwin = (Tk_Window) clientData;
+    TkWindow *winPtr;
+    register WmInfo *wmPtr;
+    int c;
+    size_t length;
+
+    if (argc < 2) {
+	wrongNumArgs:
+	Tcl_AppendResult(interp, "wrong # args: should be \"",
+		argv[0], " option window ?arg ...?\"", (char *) NULL);
+	return TCL_ERROR;
+    }
+    c = argv[1][0];
+    length = strlen(argv[1]);
+    if ((c == 't') && (strncmp(argv[1], "tracing", length) == 0)
+	    && (length >= 3)) {
+	if ((argc != 2) && (argc != 3)) {
+	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
+		    argv[0], " tracing ?boolean?\"", (char *) NULL);
+	    return TCL_ERROR;
+	}
+	if (argc == 2) {
+	    interp->result = (wmTracing) ? "on" : "off";
+	    return TCL_OK;
+	}
+	return Tcl_GetBoolean(interp, argv[2], &wmTracing);
+    }
+
+    if (argc < 3) {
+	goto wrongNumArgs;
+    }
+    winPtr = (TkWindow *) Tk_NameToWindow(interp, argv[2], tkwin);
+    if (winPtr == NULL) {
+	return TCL_ERROR;
+    }
+    if (!(winPtr->flags & TK_TOP_LEVEL)) {
+	Tcl_AppendResult(interp, "window \"", winPtr->pathName,
+		"\" isn't a top-level window", (char *) NULL);
+	return TCL_ERROR;
+    }
+    wmPtr = winPtr->wmInfoPtr;
+    if ((c == 'a') && (strncmp(argv[1], "aspect", length) == 0)) {
+	int numer1, denom1, numer2, denom2;
+
+	if ((argc != 3) && (argc != 7)) {
+	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
+		    argv[0], " aspect window ?minNumer minDenom ",
+		    "maxNumer maxDenom?\"", (char *) NULL);
+	    return TCL_ERROR;
+	}
+	if (argc == 3) {
+	    if (wmPtr->sizeHintsFlags & PAspect) {
+		sprintf(interp->result, "%d %d %d %d", wmPtr->minAspect.x,
+			wmPtr->minAspect.y, wmPtr->maxAspect.x,
+			wmPtr->maxAspect.y);
+	    }
+	    return TCL_OK;
+	}
+	if (*argv[3] == '\0') {
+	    wmPtr->sizeHintsFlags &= ~PAspect;
+	} else {
+	    if ((Tcl_GetInt(interp, argv[3], &numer1) != TCL_OK)
+		    || (Tcl_GetInt(interp, argv[4], &denom1) != TCL_OK)
+		    || (Tcl_GetInt(interp, argv[5], &numer2) != TCL_OK)
+		    || (Tcl_GetInt(interp, argv[6], &denom2) != TCL_OK)) {
+		return TCL_ERROR;
+	    }
+	    if ((numer1 <= 0) || (denom1 <= 0) || (numer2 <= 0) ||
+		    (denom2 <= 0)) {
+		interp->result = "aspect number can't be <= 0";
+		return TCL_ERROR;
+	    }
+	    wmPtr->minAspect.x = numer1;
+	    wmPtr->minAspect.y = denom1;
+	    wmPtr->maxAspect.x = numer2;
+	    wmPtr->maxAspect.y = denom2;
+	    wmPtr->sizeHintsFlags |= PAspect;
+	}
+	wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
+	goto updateGeom;
+    } else if ((c == 'c') && (strncmp(argv[1], "client", length) == 0)
+	    && (length >= 2)) {
+	if ((argc != 3) && (argc != 4)) {
+	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
+		    argv[0], " client window ?name?\"",
+		    (char *) NULL);
+	    return TCL_ERROR;
+	}
+	if (argc == 3) {
+	    if (wmPtr->clientMachine != NULL) {
+		interp->result = wmPtr->clientMachine;
+	    }
+	    return TCL_OK;
+	}
+	if (argv[3][0] == 0) {
+	    if (wmPtr->clientMachine != NULL) {
+		ckfree((char *) wmPtr->clientMachine);
+		wmPtr->clientMachine = NULL;
+		if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
+		    XDeleteProperty(winPtr->display, wmPtr->wrapperPtr->window,
+			    Tk_InternAtom((Tk_Window) winPtr,
+			    "WM_CLIENT_MACHINE"));
+		}
+	    }
+	    return TCL_OK;
+	}
+	if (wmPtr->clientMachine != NULL) {
+	    ckfree((char *) wmPtr->clientMachine);
+	}
+	wmPtr->clientMachine = (char *)
+		ckalloc((unsigned) (strlen(argv[3]) + 1));
+	strcpy(wmPtr->clientMachine, argv[3]);
+	if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
+	    XTextProperty textProp;
+	    if (XStringListToTextProperty(&wmPtr->clientMachine, 1, &textProp)
+		    != 0) {
+		XSetWMClientMachine(winPtr->display, wmPtr->wrapperPtr->window,
+			&textProp);
+		XFree((char *) textProp.value);
+	    }
+	}
+    } else if ((c == 'c') && (strncmp(argv[1], "colormapwindows", length) == 0)
+	    && (length >= 3)) {
+	Window *cmapList;
+	TkWindow *winPtr2;
+	int count, i, windowArgc, gotToplevel;
+	char buffer[20], **windowArgv;
+
+	if ((argc != 3) && (argc != 4)) {
+	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
+		    argv[0], " colormapwindows window ?windowList?\"",
+		    (char *) NULL);
+	    return TCL_ERROR;
+	}
+	Tk_MakeWindowExist((Tk_Window) winPtr);
+	if (wmPtr->wrapperPtr == NULL) {
+	    CreateWrapper(wmPtr);
+	}
+	if (argc == 3) {
+	    if (XGetWMColormapWindows(winPtr->display,
+		    wmPtr->wrapperPtr->window, &cmapList, &count) == 0) {
+		return TCL_OK;
+	    }
+	    for (i = 0; i < count; i++) {
+		if ((i == (count-1))
+			&& (wmPtr->flags & WM_ADDED_TOPLEVEL_COLORMAP)) {
+		    break;
+		}
+	        winPtr2  = (TkWindow *) Tk_IdToWindow(winPtr->display,
+			cmapList[i]);
+		if (winPtr2 == NULL) {
+		    sprintf(buffer, "0x%lx", cmapList[i]);
+		    Tcl_AppendElement(interp, buffer);
+		} else {
+		    Tcl_AppendElement(interp, winPtr2->pathName);
+		}
+	    }
+	    XFree((char *) cmapList);
+	    return TCL_OK;
+	}
+	if (Tcl_SplitList(interp, argv[3], &windowArgc, &windowArgv)
+		!= TCL_OK) {
+	    return TCL_ERROR;
+	}
+	cmapList = (Window *) ckalloc((unsigned)
+		((windowArgc+1)*sizeof(Window)));
+	gotToplevel = 0;
+	for (i = 0; i < windowArgc; i++) {
+	    winPtr2 = (TkWindow *) Tk_NameToWindow(interp, windowArgv[i],
+		    tkwin);
+	    if (winPtr2 == NULL) {
+		ckfree((char *) cmapList);
+		ckfree((char *) windowArgv);
+		return TCL_ERROR;
+	    }
+	    if (winPtr2 == winPtr) {
+		gotToplevel = 1;
+	    }
+	    if (winPtr2->window == None) {
+		Tk_MakeWindowExist((Tk_Window) winPtr2);
+	    }
+	    cmapList[i] = winPtr2->window;
+	}
+	if (!gotToplevel) {
+	    wmPtr->flags |= WM_ADDED_TOPLEVEL_COLORMAP;
+	    cmapList[windowArgc] = wmPtr->wrapperPtr->window;
+	    windowArgc++;
+	} else {
+	    wmPtr->flags &= ~WM_ADDED_TOPLEVEL_COLORMAP;
+	}
+	wmPtr->flags |= WM_COLORMAPS_EXPLICIT;
+	XSetWMColormapWindows(winPtr->display, wmPtr->wrapperPtr->window,
+		cmapList, windowArgc);
+	ckfree((char *) cmapList);
+	ckfree((char *) windowArgv);
+	return TCL_OK;
+    } else if ((c == 'c') && (strncmp(argv[1], "command", length) == 0)
+	    && (length >= 3)) {
+	int cmdArgc;
+	char **cmdArgv;
+
+	if ((argc != 3) && (argc != 4)) {
+	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
+		    argv[0], " command window ?value?\"",
+		    (char *) NULL);
+	    return TCL_ERROR;
+	}
+	if (argc == 3) {
+	    if (wmPtr->cmdArgv != NULL) {
+		interp->result = Tcl_Merge(wmPtr->cmdArgc, wmPtr->cmdArgv);
+		interp->freeProc = TCL_DYNAMIC;
+	    }
+	    return TCL_OK;
+	}
+	if (argv[3][0] == 0) {
+	    if (wmPtr->cmdArgv != NULL) {
+		ckfree((char *) wmPtr->cmdArgv);
+		wmPtr->cmdArgv = NULL;
+		if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
+		    XDeleteProperty(winPtr->display, wmPtr->wrapperPtr->window,
+			    Tk_InternAtom((Tk_Window) winPtr, "WM_COMMAND"));
+		}
+	    }
+	    return TCL_OK;
+	}
+	if (Tcl_SplitList(interp, argv[3], &cmdArgc, &cmdArgv) != TCL_OK) {
+	    return TCL_ERROR;
+	}
+	if (wmPtr->cmdArgv != NULL) {
+	    ckfree((char *) wmPtr->cmdArgv);
+	}
+	wmPtr->cmdArgc = cmdArgc;
+	wmPtr->cmdArgv = cmdArgv;
+	if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
+	    XSetCommand(winPtr->display, wmPtr->wrapperPtr->window,
+		    cmdArgv, cmdArgc);
+	}
+    } else if ((c == 'd') && (strncmp(argv[1], "deiconify", length) == 0)) {
+	if (argc != 3) {
+	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
+		    argv[0], " deiconify window\"", (char *) NULL);
+	    return TCL_ERROR;
+	}
+	if (wmPtr->iconFor != NULL) {
+	    Tcl_AppendResult(interp, "can't deiconify ", argv[2],
+		    ": it is an icon for ", Tk_PathName(wmPtr->iconFor),
+		    (char *) NULL);
+	    return TCL_ERROR;
+	}
+	wmPtr->hints.initial_state = NormalState;
+	wmPtr->withdrawn = 0;
+	if (wmPtr->flags & WM_NEVER_MAPPED) {
+	    return TCL_OK;
+	}
+	UpdateHints(winPtr);
+	Tk_MapWindow((Tk_Window) winPtr);
+    } else if ((c == 'f') && (strncmp(argv[1], "focusmodel", length) == 0)
+	    && (length >= 2)) {
+	if ((argc != 3) && (argc != 4)) {
+	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
+		    argv[0], " focusmodel window ?active|passive?\"",
+		    (char *) NULL);
+	    return TCL_ERROR;
+	}
+	if (argc == 3) {
+	    interp->result = wmPtr->hints.input ? "passive" : "active";
+	    return TCL_OK;
+	}
+	c = argv[3][0];
+	length = strlen(argv[3]);
+	if ((c == 'a') && (strncmp(argv[3], "active", length) == 0)) {
+	    wmPtr->hints.input = False;
+	} else if ((c == 'p') && (strncmp(argv[3], "passive", length) == 0)) {
+	    wmPtr->hints.input = True;
+	} else {
+	    Tcl_AppendResult(interp, "bad argument \"", argv[3],
+		    "\": must be active or passive", (char *) NULL);
+	    return TCL_ERROR;
+	}
+	UpdateHints(winPtr);
+    } else if ((c == 'f') && (strncmp(argv[1], "frame", length) == 0)
+	    && (length >= 2)) {
+	Window window;
+
+	if (argc != 3) {
+	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
+		    argv[0], " frame window\"", (char *) NULL);
+	    return TCL_ERROR;
+	}
+	window = wmPtr->reparent;
+	if (window == None) {
+	    window = Tk_WindowId((Tk_Window) winPtr);
+	}
+	sprintf(interp->result, "0x%x", (unsigned int) window);
+    } else if ((c == 'g') && (strncmp(argv[1], "geometry", length) == 0)
+	    && (length >= 2)) {
+	char xSign, ySign;
+	int width, height;
+
+	if ((argc != 3) && (argc != 4)) {
+	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
+		    argv[0], " geometry window ?newGeometry?\"",
+		    (char *) NULL);
+	    return TCL_ERROR;
+	}
+	if (argc == 3) {
+	    xSign = (wmPtr->flags & WM_NEGATIVE_X) ? '-' : '+';
+	    ySign = (wmPtr->flags & WM_NEGATIVE_Y) ? '-' : '+';
+	    if (wmPtr->gridWin != NULL) {
+		width = wmPtr->reqGridWidth + (winPtr->changes.width
+			- winPtr->reqWidth)/wmPtr->widthInc;
+		height = wmPtr->reqGridHeight + (winPtr->changes.height
+			- winPtr->reqHeight)/wmPtr->heightInc;
+	    } else {
+		width = winPtr->changes.width;
+		height = winPtr->changes.height;
+	    }
+	    sprintf(interp->result, "%dx%d%c%d%c%d", width, height,
+		    xSign, wmPtr->x, ySign, wmPtr->y);
+	    return TCL_OK;
+	}
+	if (*argv[3] == '\0') {
+	    wmPtr->width = -1;
+	    wmPtr->height = -1;
+	    goto updateGeom;
+	}
+	return ParseGeometry(interp, argv[3], winPtr);
+    } else if ((c == 'g') && (strncmp(argv[1], "grid", length) == 0)
+	    && (length >= 3)) {
+	int reqWidth, reqHeight, widthInc, heightInc;
+
+	if ((argc != 3) && (argc != 7)) {
+	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
+		    argv[0], " grid window ?baseWidth baseHeight ",
+		    "widthInc heightInc?\"", (char *) NULL);
+	    return TCL_ERROR;
+	}
+	if (argc == 3) {
+	    if (wmPtr->sizeHintsFlags & PBaseSize) {
+		sprintf(interp->result, "%d %d %d %d", wmPtr->reqGridWidth,
+			wmPtr->reqGridHeight, wmPtr->widthInc,
+			wmPtr->heightInc);
+	    }
+	    return TCL_OK;
+	}
+	if (*argv[3] == '\0') {
+	    /*
+	     * Turn off gridding and reset the width and height
+	     * to make sense as ungridded numbers.
+	     */
+
+	    wmPtr->sizeHintsFlags &= ~(PBaseSize|PResizeInc);
+	    if (wmPtr->width != -1) {
+		wmPtr->width = winPtr->reqWidth + (wmPtr->width
+			- wmPtr->reqGridWidth)*wmPtr->widthInc;
+		wmPtr->height = winPtr->reqHeight + (wmPtr->height
+			- wmPtr->reqGridHeight)*wmPtr->heightInc;
+	    }
+	    wmPtr->widthInc = 1;
+	    wmPtr->heightInc = 1;
+	} else {
+	    if ((Tcl_GetInt(interp, argv[3], &reqWidth) != TCL_OK)
+		    || (Tcl_GetInt(interp, argv[4], &reqHeight) != TCL_OK)
+		    || (Tcl_GetInt(interp, argv[5], &widthInc) != TCL_OK)
+		    || (Tcl_GetInt(interp, argv[6], &heightInc) != TCL_OK)) {
+		return TCL_ERROR;
+	    }
+	    if (reqWidth < 0) {
+		interp->result = "baseWidth can't be < 0";
+		return TCL_ERROR;
+	    }
+	    if (reqHeight < 0) {
+		interp->result = "baseHeight can't be < 0";
+		return TCL_ERROR;
+	    }
+	    if (widthInc < 0) {
+		interp->result = "widthInc can't be < 0";
+		return TCL_ERROR;
+	    }
+	    if (heightInc < 0) {
+		interp->result = "heightInc can't be < 0";
+		return TCL_ERROR;
+	    }
+	    Tk_SetGrid((Tk_Window) winPtr, reqWidth, reqHeight, widthInc,
+		    heightInc);
+	}
+	wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
+	goto updateGeom;
+    } else if ((c == 'g') && (strncmp(argv[1], "group", length) == 0)
+	    && (length >= 3)) {
+	Tk_Window tkwin2;
+	WmInfo *wmPtr2;
+
+	if ((argc != 3) && (argc != 4)) {
+	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
+		    argv[0], " group window ?pathName?\"",
+		    (char *) NULL);
+	    return TCL_ERROR;
+	}
+	if (argc == 3) {
+	    if (wmPtr->hints.flags & WindowGroupHint) {
+		interp->result = wmPtr->leaderName;
+	    }
+	    return TCL_OK;
+	}
+	if (*argv[3] == '\0') {
+	    wmPtr->hints.flags &= ~WindowGroupHint;
+	    if (wmPtr->leaderName != NULL) {
+		ckfree(wmPtr->leaderName);
+	    }
+	    wmPtr->leaderName = NULL;
+	} else {
+	    tkwin2 = Tk_NameToWindow(interp, argv[3], tkwin);
+	    if (tkwin2 == NULL) {
+		return TCL_ERROR;
+	    }
+	    while (!Tk_IsTopLevel(tkwin2)) {
+		/*
+		 * Ensure that the group leader is actually a Tk toplevel.
+		 */
+
+		tkwin2 = Tk_Parent(tkwin2);
+	    }
+	    Tk_MakeWindowExist(tkwin2);
+	    wmPtr2 = ((TkWindow *) tkwin2)->wmInfoPtr;
+	    if (wmPtr2->wrapperPtr == NULL) {
+		CreateWrapper(wmPtr2);
+	    }
+	    wmPtr->hints.window_group = Tk_WindowId(wmPtr2->wrapperPtr);
+	    wmPtr->hints.flags |= WindowGroupHint;
+	    wmPtr->leaderName = ckalloc((unsigned) (strlen(argv[3])+1));
+	    strcpy(wmPtr->leaderName, argv[3]);
+	}
+	UpdateHints(winPtr);
+    } else if ((c == 'i') && (strncmp(argv[1], "iconbitmap", length) == 0)
+	    && (length >= 5)) {
+	Pixmap pixmap;
+
+	if ((argc != 3) && (argc != 4)) {
+	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
+		    argv[0], " iconbitmap window ?bitmap?\"",
+		    (char *) NULL);
+	    return TCL_ERROR;
+	}
+	if (argc == 3) {
+	    if (wmPtr->hints.flags & IconPixmapHint) {
+		interp->result = Tk_NameOfBitmap(winPtr->display,
+			wmPtr->hints.icon_pixmap);
+	    }
+	    return TCL_OK;
+	}
+	if (*argv[3] == '\0') {
+	    if (wmPtr->hints.icon_pixmap != None) {
+		Tk_FreeBitmap(winPtr->display, wmPtr->hints.icon_pixmap);
+		wmPtr->hints.icon_pixmap = None;
+	    }
+	    wmPtr->hints.flags &= ~IconPixmapHint;
+	} else {
+	    pixmap = Tk_GetBitmap(interp, (Tk_Window) winPtr,
+		    Tk_GetUid(argv[3]));
+	    if (pixmap == None) {
+		return TCL_ERROR;
+	    }
+	    wmPtr->hints.icon_pixmap = pixmap;
+	    wmPtr->hints.flags |= IconPixmapHint;
+	}
+	UpdateHints(winPtr);
+    } else if ((c == 'i') && (strncmp(argv[1], "iconify", length) == 0)
+	    && (length >= 5)) {
+	if (argc != 3) {
+	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
+		    argv[0], " iconify window\"", (char *) NULL);
+	    return TCL_ERROR;
+	}
+	if (Tk_Attributes((Tk_Window) winPtr)->override_redirect) {
+	    Tcl_AppendResult(interp, "can't iconify \"", winPtr->pathName,
+		    "\": override-redirect flag is set", (char *) NULL);
+	    return TCL_ERROR;
+	}
+	if (wmPtr->master != None) {
+	    Tcl_AppendResult(interp, "can't iconify \"", winPtr->pathName,
+		    "\": it is a transient", (char *) NULL);
+	    return TCL_ERROR;
+	}
+	if (wmPtr->iconFor != NULL) {
+	    Tcl_AppendResult(interp, "can't iconify ", argv[2],
+		    ": it is an icon for ", Tk_PathName(wmPtr->iconFor),
+		   (char *) NULL);
+	    return TCL_ERROR;
+	}
+	wmPtr->hints.initial_state = IconicState;
+	if (wmPtr->flags & WM_NEVER_MAPPED) {
+	    return TCL_OK;
+	}
+	if (wmPtr->withdrawn) {
+	    UpdateHints(winPtr);
+	    Tk_MapWindow((Tk_Window) winPtr);
+	    wmPtr->withdrawn = 0;
+	} else {
+	    if (XIconifyWindow(winPtr->display, wmPtr->wrapperPtr->window,
+		    winPtr->screenNum) == 0) {
+		interp->result =
+			"couldn't send iconify message to window manager";
+		return TCL_ERROR;
+	    }
+	    WaitForMapNotify(winPtr, 0);
+	}
+    } else if ((c == 'i') && (strncmp(argv[1], "iconmask", length) == 0)
+	    && (length >= 5)) {
+	Pixmap pixmap;
+
+	if ((argc != 3) && (argc != 4)) {
+	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
+		    argv[0], " iconmask window ?bitmap?\"",
+		    (char *) NULL);
+	    return TCL_ERROR;
+	}
+	if (argc == 3) {
+	    if (wmPtr->hints.flags & IconMaskHint) {
+		interp->result = Tk_NameOfBitmap(winPtr->display,
+			wmPtr->hints.icon_mask);
+	    }
+	    return TCL_OK;
+	}
+	if (*argv[3] == '\0') {
+	    if (wmPtr->hints.icon_mask != None) {
+		Tk_FreeBitmap(winPtr->display, wmPtr->hints.icon_mask);
+	    }
+	    wmPtr->hints.flags &= ~IconMaskHint;
+	} else {
+	    pixmap = Tk_GetBitmap(interp, tkwin, Tk_GetUid(argv[3]));
+	    if (pixmap == None) {
+		return TCL_ERROR;
+	    }
+	    wmPtr->hints.icon_mask = pixmap;
+	    wmPtr->hints.flags |= IconMaskHint;
+	}
+	UpdateHints(winPtr);
+    } else if ((c == 'i') && (strncmp(argv[1], "iconname", length) == 0)
+	    && (length >= 5)) {
+	if (argc > 4) {
+	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
+		    argv[0], " iconname window ?newName?\"", (char *) NULL);
+	    return TCL_ERROR;
+	}
+	if (argc == 3) {
+	    interp->result = (wmPtr->iconName != NULL) ? wmPtr->iconName : "";
+	    return TCL_OK;
+	} else {
+	    wmPtr->iconName = ckalloc((unsigned) (strlen(argv[3]) + 1));
+	    strcpy(wmPtr->iconName, argv[3]);
+	    if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
+		XSetIconName(winPtr->display, wmPtr->wrapperPtr->window,
+			wmPtr->iconName);
+	    }
+	}
+    } else if ((c == 'i') && (strncmp(argv[1], "iconposition", length) == 0)
+	    && (length >= 5)) {
+	int x, y;
+
+	if ((argc != 3) && (argc != 5)) {
+	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
+		    argv[0], " iconposition window ?x y?\"",
+		    (char *) NULL);
+	    return TCL_ERROR;
+	}
+	if (argc == 3) {
+	    if (wmPtr->hints.flags & IconPositionHint) {
+		sprintf(interp->result, "%d %d", wmPtr->hints.icon_x,
+			wmPtr->hints.icon_y);
+	    }
+	    return TCL_OK;
+	}
+	if (*argv[3] == '\0') {
+	    wmPtr->hints.flags &= ~IconPositionHint;
+	} else {
+	    if ((Tcl_GetInt(interp, argv[3], &x) != TCL_OK)
+		    || (Tcl_GetInt(interp, argv[4], &y) != TCL_OK)){
+		return TCL_ERROR;
+	    }
+	    wmPtr->hints.icon_x = x;
+	    wmPtr->hints.icon_y = y;
+	    wmPtr->hints.flags |= IconPositionHint;
+	}
+	UpdateHints(winPtr);
+    } else if ((c == 'i') && (strncmp(argv[1], "iconwindow", length) == 0)
+	    && (length >= 5)) {
+	Tk_Window tkwin2;
+	WmInfo *wmPtr2;
+	XSetWindowAttributes atts;
+
+	if ((argc != 3) && (argc != 4)) {
+	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
+		    argv[0], " iconwindow window ?pathName?\"",
+		    (char *) NULL);
+	    return TCL_ERROR;
+	}
+	if (argc == 3) {
+	    if (wmPtr->icon != NULL) {
+		interp->result = Tk_PathName(wmPtr->icon);
+	    }
+	    return TCL_OK;
+	}
+	if (*argv[3] == '\0') {
+	    wmPtr->hints.flags &= ~IconWindowHint;
+	    if (wmPtr->icon != NULL) {
+		/*
+		 * Remove the icon window relationship.  In principle we
+		 * should also re-enable button events for the window, but
+		 * this doesn't work in general because the window manager
+		 * is probably selecting on them (we'll get an error if
+		 * we try to re-enable the events).  So, just leave the
+		 * icon window event-challenged;  the user will have to
+		 * recreate it if they want button events.
+		 */
+
+		wmPtr2 = ((TkWindow *) wmPtr->icon)->wmInfoPtr;
+		wmPtr2->iconFor = NULL;
+		wmPtr2->withdrawn = 1;
+		wmPtr2->hints.initial_state = WithdrawnState;
+	    }
+	    wmPtr->icon = NULL;
+	} else {
+	    tkwin2 = Tk_NameToWindow(interp, argv[3], tkwin);
+	    if (tkwin2 == NULL) {
+		return TCL_ERROR;
+	    }
+	    if (!Tk_IsTopLevel(tkwin2)) {
+		Tcl_AppendResult(interp, "can't use ", argv[3],
+			" as icon window: not at top level", (char *) NULL);
+		return TCL_ERROR;
+	    }
+	    wmPtr2 = ((TkWindow *) tkwin2)->wmInfoPtr;
+	    if (wmPtr2->iconFor != NULL) {
+		Tcl_AppendResult(interp, argv[3], " is already an icon for ",
+			Tk_PathName(wmPtr2->iconFor), (char *) NULL);
+		return TCL_ERROR;
+	    }
+	    if (wmPtr->icon != NULL) {
+		WmInfo *wmPtr3 = ((TkWindow *) wmPtr->icon)->wmInfoPtr;
+		wmPtr3->iconFor = NULL;
+		wmPtr3->withdrawn = 1;
+		wmPtr3->hints.initial_state = WithdrawnState;
+	    }
+
+	    /*
+	     * Disable button events in the icon window:  some window
+	     * managers (like olvwm) want to get the events themselves,
+	     * but X only allows one application at a time to receive
+	     * button events for a window.
+	     */
+
+	    atts.event_mask = Tk_Attributes(tkwin2)->event_mask
+		    & ~ButtonPressMask;
+	    Tk_ChangeWindowAttributes(tkwin2, CWEventMask, &atts);
+	    Tk_MakeWindowExist(tkwin2);
+	    if (wmPtr2->wrapperPtr == NULL) {
+		CreateWrapper(wmPtr2);
+	    }
+	    wmPtr->hints.icon_window = Tk_WindowId(wmPtr2->wrapperPtr);
+	    wmPtr->hints.flags |= IconWindowHint;
+	    wmPtr->icon = tkwin2;
+	    wmPtr2->iconFor = (Tk_Window) winPtr;
+	    if (!wmPtr2->withdrawn && !(wmPtr2->flags & WM_NEVER_MAPPED)) {
+		wmPtr2->withdrawn = 0;
+		if (XWithdrawWindow(Tk_Display(tkwin2),
+			Tk_WindowId(wmPtr2->wrapperPtr),
+			Tk_ScreenNumber(tkwin2)) == 0) {
+		    interp->result =
+			    "couldn't send withdraw message to window manager";
+		    return TCL_ERROR;
+		}
+		WaitForMapNotify((TkWindow *) tkwin2, 0);
+	    }
+	}
+	UpdateHints(winPtr);
+    } else if ((c == 'm') && (strncmp(argv[1], "maxsize", length) == 0)
+	    && (length >= 2)) {
+	int width, height;
+	if ((argc != 3) && (argc != 5)) {
+	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
+		    argv[0], " maxsize window ?width height?\"", (char *) NULL);
+	    return TCL_ERROR;
+	}
+	if (argc == 3) {
+	    GetMaxSize(wmPtr, &width, &height);
+	    sprintf(interp->result, "%d %d", width, height);
+	    return TCL_OK;
+	}
+	if ((Tcl_GetInt(interp, argv[3], &width) != TCL_OK)
+		|| (Tcl_GetInt(interp, argv[4], &height) != TCL_OK)) {
+	    return TCL_ERROR;
+	}
+	wmPtr->maxWidth = width;
+	wmPtr->maxHeight = height;
+	wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
+	goto updateGeom;
+    } else if ((c == 'm') && (strncmp(argv[1], "minsize", length) == 0)
+	    && (length >= 2)) {
+	int width, height;
+	if ((argc != 3) && (argc != 5)) {
+	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
+		    argv[0], " minsize window ?width height?\"", (char *) NULL);
+	    return TCL_ERROR;
+	}
+	if (argc == 3) {
+	    sprintf(interp->result, "%d %d", wmPtr->minWidth,
+		    wmPtr->minHeight);
+	    return TCL_OK;
+	}
+	if ((Tcl_GetInt(interp, argv[3], &width) != TCL_OK)
+		|| (Tcl_GetInt(interp, argv[4], &height) != TCL_OK)) {
+	    return TCL_ERROR;
+	}
+	wmPtr->minWidth = width;
+	wmPtr->minHeight = height;
+	wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
+	goto updateGeom;
+    } else if ((c == 'o')
+	    && (strncmp(argv[1], "overrideredirect", length) == 0)) {
+	int boolean;
+	XSetWindowAttributes atts;
+
+	if ((argc != 3) && (argc != 4)) {
+	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
+		    argv[0], " overrideredirect window ?boolean?\"",
+		    (char *) NULL);
+	    return TCL_ERROR;
+	}
+	if (argc == 3) {
+	    if (Tk_Attributes((Tk_Window) winPtr)->override_redirect) {
+		interp->result = "1";
+	    } else {
+		interp->result = "0";
+	    }
+	    return TCL_OK;
+	}
+	if (Tcl_GetBoolean(interp, argv[3], &boolean) != TCL_OK) {
+	    return TCL_ERROR;
+	}
+	atts.override_redirect = (boolean) ? True : False;
+	Tk_ChangeWindowAttributes((Tk_Window) winPtr, CWOverrideRedirect,
+		&atts);
+	if (winPtr->wmInfoPtr->wrapperPtr != NULL) {
+	    Tk_ChangeWindowAttributes(
+		    (Tk_Window) winPtr->wmInfoPtr->wrapperPtr,
+		    CWOverrideRedirect, &atts);
+	}
+    } else if ((c == 'p') && (strncmp(argv[1], "positionfrom", length) == 0)
+	    && (length >= 2)) {
+	if ((argc != 3) && (argc != 4)) {
+	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
+		    argv[0], " positionfrom window ?user/program?\"",
+		    (char *) NULL);
+	    return TCL_ERROR;
+	}
+	if (argc == 3) {
+	    if (wmPtr->sizeHintsFlags & USPosition) {
+		interp->result = "user";
+	    } else if (wmPtr->sizeHintsFlags & PPosition) {
+		interp->result = "program";
+	    }
+	    return TCL_OK;
+	}
+	if (*argv[3] == '\0') {
+	    wmPtr->sizeHintsFlags &= ~(USPosition|PPosition);
+	} else {
+	    c = argv[3][0];
+	    length = strlen(argv[3]);
+	    if ((c == 'u') && (strncmp(argv[3], "user", length) == 0)) {
+		wmPtr->sizeHintsFlags &= ~PPosition;
+		wmPtr->sizeHintsFlags |= USPosition;
+	    } else if ((c == 'p') && (strncmp(argv[3], "program", length) == 0)) {
+		wmPtr->sizeHintsFlags &= ~USPosition;
+		wmPtr->sizeHintsFlags |= PPosition;
+	    } else {
+		Tcl_AppendResult(interp, "bad argument \"", argv[3],
+			"\": must be program or user", (char *) NULL);
+		return TCL_ERROR;
+	    }
+	}
+	wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
+	goto updateGeom;
+    } else if ((c == 'p') && (strncmp(argv[1], "protocol", length) == 0)
+	    && (length >= 2)) {
+	register ProtocolHandler *protPtr, *prevPtr;
+	Atom protocol;
+	int cmdLength;
+
+	if ((argc < 3) || (argc > 5)) {
+	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
+		    argv[0], " protocol window ?name? ?command?\"",
+		    (char *) NULL);
+	    return TCL_ERROR;
+	}
+	if (argc == 3) {
+	    /*
+	     * Return a list of all defined protocols for the window.
+	     */
+	    for (protPtr = wmPtr->protPtr; protPtr != NULL;
+		    protPtr = protPtr->nextPtr) {
+		Tcl_AppendElement(interp,
+			Tk_GetAtomName((Tk_Window) winPtr, protPtr->protocol));
+	    }
+	    return TCL_OK;
+	}
+	protocol = Tk_InternAtom((Tk_Window) winPtr, argv[3]);
+	if (argc == 4) {
+	    /*
+	     * Return the command to handle a given protocol.
+	     */
+	    for (protPtr = wmPtr->protPtr; protPtr != NULL;
+		    protPtr = protPtr->nextPtr) {
+		if (protPtr->protocol == protocol) {
+		    interp->result = protPtr->command;
+		    return TCL_OK;
+		}
+	    }
+	    return TCL_OK;
+	}
+
+	/*
+	 * Delete any current protocol handler, then create a new
+	 * one with the specified command, unless the command is
+	 * empty.
+	 */
+
+	for (protPtr = wmPtr->protPtr, prevPtr = NULL; protPtr != NULL;
+		prevPtr = protPtr, protPtr = protPtr->nextPtr) {
+	    if (protPtr->protocol == protocol) {
+		if (prevPtr == NULL) {
+		    wmPtr->protPtr = protPtr->nextPtr;
+		} else {
+		    prevPtr->nextPtr = protPtr->nextPtr;
+		}
+		Tcl_EventuallyFree((ClientData) protPtr, TCL_DYNAMIC);
+		break;
+	    }
+	}
+	cmdLength = strlen(argv[4]);
+	if (cmdLength > 0) {
+	    protPtr = (ProtocolHandler *) ckalloc(HANDLER_SIZE(cmdLength));
+	    protPtr->protocol = protocol;
+	    protPtr->nextPtr = wmPtr->protPtr;
+	    wmPtr->protPtr = protPtr;
+	    protPtr->interp = interp;
+	    strcpy(protPtr->command, argv[4]);
+	}
+	if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
+	    UpdateWmProtocols(wmPtr);
+	}
+    } else if ((c == 'r') && (strncmp(argv[1], "resizable", length) == 0)) {
+	int width, height;
+
+	if ((argc != 3) && (argc != 5)) {
+	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
+		    argv[0], " resizable window ?width height?\"",
+		    (char *) NULL);
+	    return TCL_ERROR;
+	}
+	if (argc == 3) {
+	    sprintf(interp->result, "%d %d",
+		    (wmPtr->flags  & WM_WIDTH_NOT_RESIZABLE) ? 0 : 1,
+		    (wmPtr->flags  & WM_HEIGHT_NOT_RESIZABLE) ? 0 : 1);
+	    return TCL_OK;
+	}
+	if ((Tcl_GetBoolean(interp, argv[3], &width) != TCL_OK)
+		|| (Tcl_GetBoolean(interp, argv[4], &height) != TCL_OK)) {
+	    return TCL_ERROR;
+	}
+	if (width) {
+	    wmPtr->flags &= ~WM_WIDTH_NOT_RESIZABLE;
+	} else {
+	    wmPtr->flags |= WM_WIDTH_NOT_RESIZABLE;
+	}
+	if (height) {
+	    wmPtr->flags &= ~WM_HEIGHT_NOT_RESIZABLE;
+	} else {
+	    wmPtr->flags |= WM_HEIGHT_NOT_RESIZABLE;
+	}
+	wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
+	goto updateGeom;
+    } else if ((c == 's') && (strncmp(argv[1], "sizefrom", length) == 0)
+	    && (length >= 2)) {
+	if ((argc != 3) && (argc != 4)) {
+	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
+		    argv[0], " sizefrom window ?user|program?\"",
+		    (char *) NULL);
+	    return TCL_ERROR;
+	}
+	if (argc == 3) {
+	    if (wmPtr->sizeHintsFlags & USSize) {
+		interp->result = "user";
+	    } else if (wmPtr->sizeHintsFlags & PSize) {
+		interp->result = "program";
+	    }
+	    return TCL_OK;
+	}
+	if (*argv[3] == '\0') {
+	    wmPtr->sizeHintsFlags &= ~(USSize|PSize);
+	} else {
+	    c = argv[3][0];
+	    length = strlen(argv[3]);
+	    if ((c == 'u') && (strncmp(argv[3], "user", length) == 0)) {
+		wmPtr->sizeHintsFlags &= ~PSize;
+		wmPtr->sizeHintsFlags |= USSize;
+	    } else if ((c == 'p')
+		    && (strncmp(argv[3], "program", length) == 0)) {
+		wmPtr->sizeHintsFlags &= ~USSize;
+		wmPtr->sizeHintsFlags |= PSize;
+	    } else {
+		Tcl_AppendResult(interp, "bad argument \"", argv[3],
+			"\": must be program or user", (char *) NULL);
+		return TCL_ERROR;
+	    }
+	}
+	wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
+	goto updateGeom;
+    } else if ((c == 's') && (strncmp(argv[1], "state", length) == 0)
+	    && (length >= 2)) {
+	if (argc != 3) {
+	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
+		    argv[0], " state window\"", (char *) NULL);
+	    return TCL_ERROR;
+	}
+	if (wmPtr->iconFor != NULL) {
+	    interp->result = "icon";
+	} else if (wmPtr->withdrawn) {
+	    interp->result = "withdrawn";
+	} else if (Tk_IsMapped((Tk_Window) winPtr)
+		|| ((wmPtr->flags & WM_NEVER_MAPPED)
+		&& (wmPtr->hints.initial_state == NormalState))) {
+	    interp->result = "normal";
+	} else {
+	    interp->result = "iconic";
+	}
+    } else if ((c == 't') && (strncmp(argv[1], "title", length) == 0)
+	    && (length >= 2)) {
+	if (argc > 4) {
+	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
+		    argv[0], " title window ?newTitle?\"", (char *) NULL);
+	    return TCL_ERROR;
+	}
+	if (argc == 3) {
+	    interp->result = (wmPtr->title != NULL) ? wmPtr->title
+		    : winPtr->nameUid;
+	    return TCL_OK;
+	} else {
+	    wmPtr->title = ckalloc((unsigned) (strlen(argv[3]) + 1));
+	    strcpy(wmPtr->title, argv[3]);
+	    if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
+		XTextProperty textProp;
+
+		if (XStringListToTextProperty(&wmPtr->title, 1,
+			&textProp)  != 0) {
+		    XSetWMName(winPtr->display, wmPtr->wrapperPtr->window,
+			    &textProp);
+		    XFree((char *) textProp.value);
+		}
+	    }
+	}
+    } else if ((c == 't') && (strncmp(argv[1], "transient", length) == 0)
+	    && (length >= 3)) {
+	Tk_Window master;
+	WmInfo *wmPtr2;
+
+	if ((argc != 3) && (argc != 4)) {
+	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
+		    argv[0], " transient window ?master?\"", (char *) NULL);
+	    return TCL_ERROR;
+	}
+	if (argc == 3) {
+	    if (wmPtr->master != None) {
+		interp->result = wmPtr->masterWindowName;
+	    }
+	    return TCL_OK;
+	}
+	if (argv[3][0] == '\0') {
+	    wmPtr->master = None;
+	    if (wmPtr->masterWindowName != NULL) {
+		ckfree(wmPtr->masterWindowName);
+	    }
+	    wmPtr->masterWindowName = NULL;
+	} else {
+	    master = Tk_NameToWindow(interp, argv[3], tkwin);
+	    if (master == NULL) {
+		return TCL_ERROR;
+	    }
+	    while (!Tk_IsTopLevel(master)) {
+		/*
+		 * Ensure that the master window is actually a Tk toplevel.
+		 */
+
+		master = Tk_Parent(master);
+	    }
+	    Tk_MakeWindowExist(master);
+	    wmPtr2 = ((TkWindow *) master)->wmInfoPtr;
+	    if (wmPtr2->wrapperPtr == NULL) {
+		CreateWrapper(wmPtr2);
+	    }
+	    wmPtr->master = Tk_WindowId(wmPtr2->wrapperPtr);
+	    wmPtr->masterWindowName = ckalloc((unsigned) (strlen(argv[3])+1));
+	    strcpy(wmPtr->masterWindowName, argv[3]);
+	}
+	if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
+	    XSetTransientForHint(winPtr->display, wmPtr->wrapperPtr->window,
+		    wmPtr->master);
+	}
+    } else if ((c == 'w') && (strncmp(argv[1], "withdraw", length) == 0)
+	    && (length >= 2)) {
+	if (argc != 3) {
+	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
+		    argv[0], " withdraw window\"", (char *) NULL);
+	    return TCL_ERROR;
+	}
+	if (wmPtr->iconFor != NULL) {
+	    Tcl_AppendResult(interp, "can't withdraw ", argv[2],
+		    ": it is an icon for ", Tk_PathName(wmPtr->iconFor),
+		    (char *) NULL);
+	    return TCL_ERROR;
+	}
+	wmPtr->hints.initial_state = WithdrawnState;
+	wmPtr->withdrawn = 1;
+	if (wmPtr->flags & WM_NEVER_MAPPED) {
+	    return TCL_OK;
+	}
+	if (XWithdrawWindow(winPtr->display, wmPtr->wrapperPtr->window,
+		winPtr->screenNum) == 0) {
+	    interp->result =
+		    "couldn't send withdraw message to window manager";
+	    return TCL_ERROR;
+	}
+	WaitForMapNotify(winPtr, 0);
+    } else {
+	Tcl_AppendResult(interp, "unknown or ambiguous option \"", argv[1],
+		"\": must be aspect, client, command, deiconify, ",
+		"focusmodel, frame, geometry, grid, group, iconbitmap, ",
+		"iconify, iconmask, iconname, iconposition, ",
+		"iconwindow, maxsize, minsize, overrideredirect, ",
+		"positionfrom, protocol, resizable, sizefrom, state, title, ",
+		"transient, or withdraw",
+		(char *) NULL);
+	return TCL_ERROR;
+    }
+    return TCL_OK;
+
+    updateGeom:
+    if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) {
+	Tcl_DoWhenIdle(UpdateGeometryInfo, (ClientData) winPtr);
+	wmPtr->flags |= WM_UPDATE_PENDING;
+    }
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * Tk_SetGrid --
+ *
+ *	This procedure is invoked by a widget when it wishes to set a grid
+ *	coordinate system that controls the size of a top-level window.
+ *	It provides a C interface equivalent to the "wm grid" command and
+ *	is usually asscoiated with the -setgrid option.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	Grid-related information will be passed to the window manager, so
+ *	that the top-level window associated with tkwin will resize on
+ *	even grid units.  If some other window already controls gridding
+ *	for the top-level window then this procedure call has no effect.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+Tk_SetGrid(tkwin, reqWidth, reqHeight, widthInc, heightInc)
+    Tk_Window tkwin;		/* Token for window.  New window mgr info
+				 * will be posted for the top-level window
+				 * associated with this window. */
+    int reqWidth;		/* Width (in grid units) corresponding to
+				 * the requested geometry for tkwin. */
+    int reqHeight;		/* Height (in grid units) corresponding to
+				 * the requested geometry for tkwin. */
+    int widthInc, heightInc;	/* Pixel increments corresponding to a
+				 * change of one grid unit. */
+{
+    TkWindow *winPtr = (TkWindow *) tkwin;
+    register WmInfo *wmPtr;
+
+    /*
+     * Find the top-level window for tkwin, plus the window manager
+     * information.
+     */
+
+    while (!(winPtr->flags & TK_TOP_LEVEL)) {
+	winPtr = winPtr->parentPtr;
+	if (winPtr == NULL) {
+	    /*
+	     * The window is being deleted... just skip this operation.
+	     */
+
+	    return;
+	}
+    }
+    wmPtr = winPtr->wmInfoPtr;
+
+    if ((wmPtr->gridWin != NULL) && (wmPtr->gridWin != tkwin)) {
+	return;
+    }
+
+    if ((wmPtr->reqGridWidth == reqWidth)
+	    && (wmPtr->reqGridHeight == reqHeight)
+	    && (wmPtr->widthInc == widthInc)
+	    && (wmPtr->heightInc == heightInc)
+	    && ((wmPtr->sizeHintsFlags & (PBaseSize|PResizeInc))
+		    == (PBaseSize|PResizeInc) )) {
+	return;
+    }
+
+    /*
+     * If gridding was previously off, then forget about any window
+     * size requests made by the user or via "wm geometry":  these are
+     * in pixel units and there's no easy way to translate them to
+     * grid units since the new requested size of the top-level window in
+     * pixels may not yet have been registered yet (it may filter up
+     * the hierarchy in DoWhenIdle handlers).  However, if the window
+     * has never been mapped yet then just leave the window size alone:
+     * assume that it is intended to be in grid units but just happened
+     * to have been specified before this procedure was called.
+     */
+
+    if ((wmPtr->gridWin == NULL) && !(wmPtr->flags & WM_NEVER_MAPPED)) {
+	wmPtr->width = -1;
+	wmPtr->height = -1;
+    }
+
+    /* 
+     * Set the new gridding information, and start the process of passing
+     * all of this information to the window manager.
+     */
+
+    wmPtr->gridWin = tkwin;
+    wmPtr->reqGridWidth = reqWidth;
+    wmPtr->reqGridHeight = reqHeight;
+    wmPtr->widthInc = widthInc;
+    wmPtr->heightInc = heightInc;
+    wmPtr->sizeHintsFlags |= PBaseSize|PResizeInc;
+    wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
+    if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) {
+	Tcl_DoWhenIdle(UpdateGeometryInfo, (ClientData) winPtr);
+	wmPtr->flags |= WM_UPDATE_PENDING;
+    }
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * Tk_UnsetGrid --
+ *
+ *	This procedure cancels the effect of a previous call
+ *	to Tk_SetGrid.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	If tkwin currently controls gridding for its top-level window,
+ *	gridding is cancelled for that top-level window;  if some other
+ *	window controls gridding then this procedure has no effect.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+Tk_UnsetGrid(tkwin)
+    Tk_Window tkwin;		/* Token for window that is currently
+				 * controlling gridding. */
+{
+    TkWindow *winPtr = (TkWindow *) tkwin;
+    register WmInfo *wmPtr;
+
+    /*
+     * Find the top-level window for tkwin, plus the window manager
+     * information.
+     */
+
+    while (!(winPtr->flags & TK_TOP_LEVEL)) {
+	winPtr = winPtr->parentPtr;
+	if (winPtr == NULL) {
+	    /*
+	     * The window is being deleted... just skip this operation.
+	     */
+
+	    return;
+	}
+    }
+    wmPtr = winPtr->wmInfoPtr;
+    if (tkwin != wmPtr->gridWin) {
+	return;
+    }
+
+    wmPtr->gridWin = NULL;
+    wmPtr->sizeHintsFlags &= ~(PBaseSize|PResizeInc);
+    if (wmPtr->width != -1) {
+	wmPtr->width = winPtr->reqWidth + (wmPtr->width
+		- wmPtr->reqGridWidth)*wmPtr->widthInc;
+	wmPtr->height = winPtr->reqHeight + (wmPtr->height
+		- wmPtr->reqGridHeight)*wmPtr->heightInc;
+    }
+    wmPtr->widthInc = 1;
+    wmPtr->heightInc = 1;
+
+    wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
+    if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) {
+	Tcl_DoWhenIdle(UpdateGeometryInfo, (ClientData) winPtr);
+	wmPtr->flags |= WM_UPDATE_PENDING;
+    }
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * ConfigureEvent --
+ *
+ *	This procedure is called to handle ConfigureNotify events on
+ *	wrapper windows.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	Information gets updated in the WmInfo structure for the window
+ *	and the toplevel itself gets repositioned within the wrapper.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+ConfigureEvent(wmPtr, configEventPtr)
+    WmInfo *wmPtr;			/* Information about toplevel window. */
+    XConfigureEvent *configEventPtr;	/* Event that just occurred for
+					 * wmPtr->wrapperPtr. */
+{
+    TkWindow *wrapperPtr = wmPtr->wrapperPtr;
+    TkWindow *winPtr = wmPtr->winPtr;
+
+    /* 
+     * Update size information from the event.  There are a couple of
+     * tricky points here:
+     *
+     * 1. If the user changed the size externally then set wmPtr->width
+     *    and wmPtr->height just as if a "wm geometry" command had been
+     *    invoked with the same information.
+     * 2. However, if the size is changing in response to a request
+     *    coming from us (WM_SYNC_PENDING is set), then don't set wmPtr->width
+     *    or wmPtr->height if they were previously -1 (otherwise the
+     *    window will stop tracking geometry manager requests).
+     */
+
+    if (((wrapperPtr->changes.width != configEventPtr->width)
+	    || (wrapperPtr->changes.height != configEventPtr->height))
+	    && !(wmPtr->flags & WM_SYNC_PENDING)){
+	if (wmTracing) {
+	    printf("TopLevelEventProc: user changed %s size to %dx%d\n",
+		    winPtr->pathName, configEventPtr->width,
+		    configEventPtr->height);
+	}
+	if ((wmPtr->width == -1)
+		&& (configEventPtr->width == winPtr->reqWidth)) {
+	    /*
+	     * Don't set external width, since the user didn't change it
+	     * from what the widgets asked for.
+	     */
+	} else {
+	    /*
+	     * Note: if this window is embedded then don't set the external
+	     * size, since it came from the containing application, not the
+	     * user.  In this case we want to keep sending our size requests
+	     * to the containing application;  if the user fixes the size
+	     * of that application then it will still percolate down to us
+	     * in the right way.
+	     */
+
+	    if (!(winPtr->flags & TK_EMBEDDED)) {
+		if (wmPtr->gridWin != NULL) {
+		    wmPtr->width = wmPtr->reqGridWidth
+			    + (configEventPtr->width
+			    - winPtr->reqWidth)/wmPtr->widthInc;
+		    if (wmPtr->width < 0) {
+			wmPtr->width = 0;
+		    }
+		} else {
+		    wmPtr->width = configEventPtr->width;
+		}
+	    }
+	}
+	if ((wmPtr->height == -1)
+		&& (configEventPtr->height ==
+			(winPtr->reqHeight + wmPtr->menuHeight))) {
+	    /*
+	     * Don't set external height, since the user didn't change it
+	     * from what the widgets asked for.
+	     */
+	} else {
+	    /*
+	     * See note for wmPtr->width about not setting external size
+	     * for embedded windows.
+	     */
+
+	    if (!(winPtr->flags & TK_EMBEDDED)) {
+		if (wmPtr->gridWin != NULL) {
+		    wmPtr->height = wmPtr->reqGridHeight
+			    + (configEventPtr->height - wmPtr->menuHeight
+			    - winPtr->reqHeight)/wmPtr->heightInc;
+		    if (wmPtr->height < 0) {
+			wmPtr->height = 0;
+		    }
+		} else {
+		    wmPtr->height = configEventPtr->height - wmPtr->menuHeight;
+		}
+            }
+	}
+	wmPtr->configWidth = configEventPtr->width;
+	wmPtr->configHeight = configEventPtr->height;
+    }
+
+    if (wmTracing) {
+	printf("ConfigureEvent: %s x = %d y = %d, width = %d, height = %d",
+		winPtr->pathName, configEventPtr->x, configEventPtr->y,
+		configEventPtr->width, configEventPtr->height);
+	printf(" send_event = %d, serial = %ld\n", configEventPtr->send_event,
+		configEventPtr->serial);
+    }
+    wrapperPtr->changes.width = configEventPtr->width;
+    wrapperPtr->changes.height = configEventPtr->height;
+    wrapperPtr->changes.border_width = configEventPtr->border_width;
+    wrapperPtr->changes.sibling = configEventPtr->above;
+    wrapperPtr->changes.stack_mode = Above;
+
+    /*
+     * Reparenting window managers make life difficult.  If the
+     * window manager reparents a top-level window then the x and y
+     * information that comes in events for the window is wrong:
+     * it gives the location of the window inside its decorative
+     * parent, rather than the location of the window in root
+     * coordinates, which is what we want.  Window managers
+     * are supposed to send synthetic events with the correct
+     * information, but ICCCM doesn't require them to do this
+     * under all conditions, and the information provided doesn't
+     * include everything we need here.  So, the code below
+     * maintains a bunch of information about the parent window.
+     * If the window hasn't been reparented, we pretend that
+     * there is a parent shrink-wrapped around the window.
+     */
+
+    if ((wmPtr->reparent == None) || !ComputeReparentGeometry(wmPtr)) {
+	wmPtr->parentWidth = configEventPtr->width
+		+ 2*configEventPtr->border_width;
+	wmPtr->parentHeight = configEventPtr->height
+		+ 2*configEventPtr->border_width;
+	wrapperPtr->changes.x = wmPtr->x = configEventPtr->x;
+	wrapperPtr->changes.y = wmPtr->y = configEventPtr->y;
+	if (wmPtr->flags & WM_NEGATIVE_X) {
+	    wmPtr->x = wmPtr->vRootWidth - (wmPtr->x + wmPtr->parentWidth);
+	}
+	if (wmPtr->flags & WM_NEGATIVE_Y) {
+	    wmPtr->y = wmPtr->vRootHeight - (wmPtr->y + wmPtr->parentHeight);
+	}
+    }
+
+    /*
+     * Make sure that the toplevel and menubar are properly positioned within
+     * the wrapper.
+     */
+
+    XMoveResizeWindow(winPtr->display, winPtr->window, 0,
+	    wmPtr->menuHeight, (unsigned) wrapperPtr->changes.width,
+	    (unsigned) (wrapperPtr->changes.height - wmPtr->menuHeight));
+    if ((wmPtr->menubar != NULL)
+	    && ((Tk_Width(wmPtr->menubar) != wrapperPtr->changes.width)
+	    || (Tk_Height(wmPtr->menubar) != wmPtr->menuHeight))) {
+	Tk_MoveResizeWindow(wmPtr->menubar, 0, 0, wrapperPtr->changes.width,
+		wmPtr->menuHeight);
+    }
+
+    /*
+     * Update the coordinates in the toplevel (they should refer to the
+     * position in root window coordinates, not the coordinates of the
+     * wrapper window).  Then synthesize a ConfigureNotify event to tell
+     * the application about the change.
+     */
+
+    winPtr->changes.x = wrapperPtr->changes.x;
+    winPtr->changes.y = wrapperPtr->changes.y + wmPtr->menuHeight;
+    winPtr->changes.width = wrapperPtr->changes.width;
+    winPtr->changes.height = wrapperPtr->changes.height - wmPtr->menuHeight;
+    TkDoConfigureNotify(winPtr);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * ReparentEvent --
+ *
+ *	This procedure is called to handle ReparentNotify events on
+ *	wrapper windows.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	Information gets updated in the WmInfo structure for the window.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+ReparentEvent(wmPtr, reparentEventPtr)
+    WmInfo *wmPtr;			/* Information about toplevel window. */
+    XReparentEvent *reparentEventPtr;	/* Event that just occurred for
+					 * wmPtr->wrapperPtr. */
+{
+    TkWindow *wrapperPtr = wmPtr->wrapperPtr;
+    Window vRoot, ancestor, *children, dummy2, *virtualRootPtr;
+    Atom actualType;
+    int actualFormat;
+    unsigned long numItems, bytesAfter;
+    unsigned int dummy;
+    Tk_ErrorHandler handler;
+
+    /*
+     * Identify the root window for wrapperPtr.  This is tricky because of
+     * virtual root window managers like tvtwm.  If the window has a
+     * property named __SWM_ROOT or __WM_ROOT then this property gives
+     * the id for a virtual root window that should be used instead of
+     * the root window of the screen.
+     */
+
+    vRoot = RootWindow(wrapperPtr->display, wrapperPtr->screenNum);
+    wmPtr->vRoot = None;
+    handler = Tk_CreateErrorHandler(wrapperPtr->display, -1, -1, -1,
+	    (Tk_ErrorProc *) NULL, (ClientData) NULL);
+    if (((XGetWindowProperty(wrapperPtr->display, wrapperPtr->window,
+	    Tk_InternAtom((Tk_Window) wrapperPtr, "__WM_ROOT"), 0, (long) 1,
+	    False, XA_WINDOW, &actualType, &actualFormat, &numItems,
+	    &bytesAfter, (unsigned char **) &virtualRootPtr) == Success)
+	    && (actualType == XA_WINDOW))
+	    || ((XGetWindowProperty(wrapperPtr->display, wrapperPtr->window,
+	    Tk_InternAtom((Tk_Window) wrapperPtr, "__SWM_ROOT"), 0, (long) 1,
+	    False, XA_WINDOW, &actualType, &actualFormat, &numItems,
+	    &bytesAfter, (unsigned char **) &virtualRootPtr) == Success)
+	    && (actualType == XA_WINDOW))) {
+	if ((actualFormat == 32) && (numItems == 1)) {
+	    vRoot = wmPtr->vRoot = *virtualRootPtr;
+	} else if (wmTracing) {
+	    printf("%s format %d numItems %ld\n",
+		    "ReparentEvent got bogus VROOT property:", actualFormat,
+		    numItems);
+	}
+	XFree((char *) virtualRootPtr);
+    }
+    Tk_DeleteErrorHandler(handler);
+
+    if (wmTracing) {
+	printf("ReparentEvent: %s reparented to 0x%x, vRoot = 0x%x\n",
+		wmPtr->winPtr->pathName,
+		(unsigned int) reparentEventPtr->parent, (unsigned int) vRoot);
+    }
+
+    /*
+     * Fetch correct geometry information for the new virtual root.
+     */
+
+    UpdateVRootGeometry(wmPtr);
+
+    /*
+     * If the window's new parent is the root window, then mark it as
+     * no longer reparented.
+     */
+
+    if (reparentEventPtr->parent == vRoot) {
+	noReparent:
+	wmPtr->reparent = None;
+	wmPtr->parentWidth = wrapperPtr->changes.width;
+	wmPtr->parentHeight = wrapperPtr->changes.height;
+	wmPtr->xInParent = wmPtr->yInParent = 0;
+	wrapperPtr->changes.x = reparentEventPtr->x;
+	wrapperPtr->changes.y = reparentEventPtr->y;
+	return;
+    }
+
+    /*
+     * Search up the window hierarchy to find the ancestor of this
+     * window that is just below the (virtual) root.  This is tricky
+     * because it's possible that things have changed since the event
+     * was generated so that the ancestry indicated by the event no
+     * longer exists.  If this happens then an error will occur and
+     * we just discard the event (there will be a more up-to-date
+     * ReparentNotify event coming later).
+     */
+
+    handler = Tk_CreateErrorHandler(wrapperPtr->display, -1, -1, -1,
+	    (Tk_ErrorProc *) NULL, (ClientData) NULL);
+    wmPtr->reparent = reparentEventPtr->parent;
+    while (1) {
+	if (XQueryTree(wrapperPtr->display, wmPtr->reparent, &dummy2, &ancestor,
+		&children, &dummy) == 0) {
+	    Tk_DeleteErrorHandler(handler);
+	    goto noReparent;
+	}
+	XFree((char *) children);
+	if ((ancestor == vRoot) ||
+		(ancestor == RootWindow(wrapperPtr->display,
+		wrapperPtr->screenNum))) {
+	    break;
+	}
+	wmPtr->reparent = ancestor;
+    }
+    Tk_DeleteErrorHandler(handler);
+
+    if (!ComputeReparentGeometry(wmPtr)) {
+	goto noReparent;
+    }
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * ComputeReparentGeometry --
+ *
+ *	This procedure is invoked to recompute geometry information
+ *	related to a reparented top-level window, such as the position
+ *	and total size of the parent and the position within it of
+ *	the top-level window.
+ *
+ * Results:
+ *	The return value is 1 if everything completed successfully
+ *	and 0 if an error occurred while querying information about
+ *	winPtr's parents.  In this case winPtr is marked as no longer
+ *	being reparented.
+ *
+ * Side effects:
+ *	Geometry information in wmPtr, wmPtr->winPtr, and
+ *	wmPtr->wrapperPtr gets updated.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+ComputeReparentGeometry(wmPtr)
+    WmInfo *wmPtr;		/* Information about toplevel window
+				 * whose reparent info is to be recomputed. */
+{
+    TkWindow *wrapperPtr = wmPtr->wrapperPtr;
+    int width, height, bd;
+    unsigned int dummy;
+    int xOffset, yOffset, x, y;
+    Window dummy2;
+    Status status;
+    Tk_ErrorHandler handler;
+
+    handler = Tk_CreateErrorHandler(wrapperPtr->display, -1, -1, -1,
+	    (Tk_ErrorProc *) NULL, (ClientData) NULL);
+    (void) XTranslateCoordinates(wrapperPtr->display, wrapperPtr->window,
+	    wmPtr->reparent, 0, 0, &xOffset, &yOffset, &dummy2);
+    status = XGetGeometry(wrapperPtr->display, wmPtr->reparent,
+	    &dummy2, &x, &y, (unsigned int *) &width,
+	    (unsigned int *) &height, (unsigned int *) &bd, &dummy);
+    Tk_DeleteErrorHandler(handler);
+    if (status == 0) {
+	/*
+	 * It appears that the reparented parent went away and
+	 * no-one told us.  Reset the window to indicate that
+	 * it's not reparented.
+	 */
+	wmPtr->reparent = None;
+	wmPtr->xInParent = wmPtr->yInParent = 0;
+	return 0;
+    }
+    wmPtr->xInParent = xOffset + bd;
+    wmPtr->yInParent = yOffset + bd;
+    wmPtr->parentWidth = width + 2*bd;
+    wmPtr->parentHeight = height + 2*bd;
+
+    /*
+     * Some tricky issues in updating wmPtr->x and wmPtr->y:
+     *
+     * 1. Don't update them if the event occurred because of something
+     * we did (i.e. WM_SYNC_PENDING and WM_MOVE_PENDING are both set).
+     * This is because window managers treat coords differently than Tk,
+     * and no two window managers are alike. If the window manager moved
+     * the window because we told it to, remember the coordinates we told
+     * it, not the ones it actually moved it to.  This allows us to move
+     * the window back to the same coordinates later and get the same
+     * result. Without this check, windows can "walk" across the screen
+     * under some conditions.
+     *
+     * 2. Don't update wmPtr->x and wmPtr->y unless wrapperPtr->changes.x
+     * or wrapperPtr->changes.y has changed (otherwise a size change can
+     * spoof us into thinking that the position changed too and defeat
+     * the intent of (1) above.
+     *
+     * (As of 9/96 the above 2 comments appear to be stale.  They're
+     * being left in place as a reminder of what was once true (and
+     * perhaps should still be true?)).
+     *
+     * 3. Ignore size changes coming from the window system if we're
+     * about to change the size ourselves but haven't seen the event for
+     * it yet:  our size change is supposed to take priority.
+     */
+
+    if (!(wmPtr->flags & WM_MOVE_PENDING)
+	    && ((wmPtr->wrapperPtr->changes.x != (x + wmPtr->xInParent))
+	    || (wmPtr->wrapperPtr->changes.y != (y + wmPtr->yInParent)))) {
+	wmPtr->x = x;
+	if (wmPtr->flags & WM_NEGATIVE_X) {
+	    wmPtr->x = wmPtr->vRootWidth - (wmPtr->x + wmPtr->parentWidth);
+	}
+	wmPtr->y = y;
+	if (wmPtr->flags & WM_NEGATIVE_Y) {
+	    wmPtr->y = wmPtr->vRootHeight - (wmPtr->y + wmPtr->parentHeight);
+	}
+    }
+
+    wmPtr->wrapperPtr->changes.x = x + wmPtr->xInParent;
+    wmPtr->wrapperPtr->changes.y = y + wmPtr->yInParent;
+    if (wmTracing) {
+	printf("wrapperPtr coords %d,%d, wmPtr coords %d,%d, offsets %d %d\n",
+		wrapperPtr->changes.x, wrapperPtr->changes.y,
+		wmPtr->x, wmPtr->y, wmPtr->xInParent, wmPtr->yInParent);
+    }
+    return 1;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * WrapperEventProc --
+ *
+ *	This procedure is invoked by the event loop when a wrapper window
+ *	is restructured.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	Tk's internal data structures for the window get modified to
+ *	reflect the structural change.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+WrapperEventProc(clientData, eventPtr)
+    ClientData clientData;		/* Information about toplevel window. */
+    XEvent *eventPtr;			/* Event that just happened. */
+{
+    WmInfo *wmPtr = (WmInfo *) clientData;
+    XEvent mapEvent;
+
+    wmPtr->flags |= WM_VROOT_OFFSET_STALE;
+    if (eventPtr->type == DestroyNotify) {
+	Tk_ErrorHandler handler;
+
+	if (!(wmPtr->wrapperPtr->flags & TK_ALREADY_DEAD)) {
+	    /*
+	     * A top-level window was deleted externally (e.g., by the window
+	     * manager).  This is probably not a good thing, but cleanup as
+	     * best we can.  The error handler is needed because
+	     * Tk_DestroyWindow will try to destroy the window, but of course
+	     * it's already gone.
+	     */
+    
+	    handler = Tk_CreateErrorHandler(wmPtr->winPtr->display, -1, -1, -1,
+		    (Tk_ErrorProc *) NULL, (ClientData) NULL);
+	    Tk_DestroyWindow((Tk_Window) wmPtr->winPtr);
+	    Tk_DeleteErrorHandler(handler);
+	}
+	if (wmTracing) {
+	    printf("TopLevelEventProc: %s deleted\n", wmPtr->winPtr->pathName);
+	}
+    } else if (eventPtr->type == ConfigureNotify) {
+	/*
+	 * Ignore the event if the window has never been mapped yet.
+	 * Such an event occurs only in weird cases like changing the
+	 * internal border width of a top-level window, which results
+	 * in a synthetic Configure event.  These events are not relevant
+	 * to us, and if we process them confusion may result (e.g. we
+	 * may conclude erroneously that the user repositioned or resized
+	 * the window).
+	 */
+
+	if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
+	    ConfigureEvent(wmPtr, &eventPtr->xconfigure);
+	}
+    } else if (eventPtr->type == MapNotify) {
+	wmPtr->wrapperPtr->flags |= TK_MAPPED;
+	wmPtr->winPtr->flags |= TK_MAPPED;
+	XMapWindow(wmPtr->winPtr->display, wmPtr->winPtr->window);
+	goto doMapEvent;
+    } else if (eventPtr->type == UnmapNotify) {
+	wmPtr->wrapperPtr->flags &= ~TK_MAPPED;
+	wmPtr->winPtr->flags &= ~TK_MAPPED;
+	XUnmapWindow(wmPtr->winPtr->display, wmPtr->winPtr->window);
+	goto doMapEvent;
+    } else if (eventPtr->type == ReparentNotify) {
+	ReparentEvent(wmPtr, &eventPtr->xreparent);
+    }
+    return;
+
+    doMapEvent:
+    mapEvent = *eventPtr;
+    mapEvent.xmap.event = wmPtr->winPtr->window;
+    mapEvent.xmap.window = wmPtr->winPtr->window;
+    Tk_HandleEvent(&mapEvent);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TopLevelReqProc --
+ *
+ *	This procedure is invoked by the geometry manager whenever
+ *	the requested size for a top-level window is changed.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	Arrange for the window to be resized to satisfy the request
+ *	(this happens as a when-idle action).
+ *
+ *----------------------------------------------------------------------
+ */
+
+	/* ARGSUSED */
+static void
+TopLevelReqProc(dummy, tkwin)
+    ClientData dummy;			/* Not used. */
+    Tk_Window tkwin;			/* Information about window. */
+{
+    TkWindow *winPtr = (TkWindow *) tkwin;
+    WmInfo *wmPtr;
+
+    wmPtr = winPtr->wmInfoPtr;
+
+    if ((wmPtr->width >= 0) && (wmPtr->height >= 0)) {
+	/*
+	 * Explicit dimensions have been set for this window, so we
+	 * should ignore the geometry request.  It's actually important
+	 * to ignore the geometry request because, due to quirks in
+	 * window managers, invoking UpdateGeometryInfo may cause the
+	 * window to move.  For example, if "wm geometry -10-20" was
+	 * invoked, the window may be positioned incorrectly the first
+	 * time it appears (because we didn't know the proper width of
+	 * the window manager borders); if we invoke UpdateGeometryInfo
+	 * again, the window will be positioned correctly, which may
+	 * cause it to jump on the screen.
+	 */
+
+	return;
+    }
+
+    wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
+    if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) {
+	Tcl_DoWhenIdle(UpdateGeometryInfo, (ClientData) winPtr);
+	wmPtr->flags |= WM_UPDATE_PENDING;
+    }
+
+    /*
+     * If the window isn't being positioned by its upper left corner
+     * then we have to move it as well.
+     */
+
+    if (wmPtr->flags & (WM_NEGATIVE_X | WM_NEGATIVE_Y)) {
+	wmPtr->flags |= WM_MOVE_PENDING;
+    }
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * UpdateGeometryInfo --
+ *
+ *	This procedure is invoked when a top-level window is first
+ *	mapped, and also as a when-idle procedure, to bring the
+ *	geometry and/or position of a top-level window back into
+ *	line with what has been requested by the user and/or widgets.
+ *	This procedure doesn't return until the window manager has
+ *	responded to the geometry change.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	The size and location of both the toplevel window and its wrapper
+ *	may change, unless the WM prevents that from happening.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+UpdateGeometryInfo(clientData)
+    ClientData clientData;		/* Pointer to the window's record. */
+{
+    register TkWindow *winPtr = (TkWindow *) clientData;
+    register WmInfo *wmPtr = winPtr->wmInfoPtr;
+    int x, y, width, height;
+    unsigned long serial;
+
+    wmPtr->flags &= ~WM_UPDATE_PENDING;
+
+    /*
+     * Compute the new size for the top-level window.  See the
+     * user documentation for details on this, but the size
+     * requested depends on (a) the size requested internally
+     * by the window's widgets, (b) the size requested by the
+     * user in a "wm geometry" command or via wm-based interactive
+     * resizing (if any), and (c) whether or not the window is
+     * gridded.  Don't permit sizes <= 0 because this upsets
+     * the X server.
+     */
+
+    if (wmPtr->width == -1) {
+	width = winPtr->reqWidth;
+    } else if (wmPtr->gridWin != NULL) {
+	width = winPtr->reqWidth
+		+ (wmPtr->width - wmPtr->reqGridWidth)*wmPtr->widthInc;
+    } else {
+	width = wmPtr->width;
+    }
+    if (width <= 0) {
+	width = 1;
+    }
+    if (wmPtr->height == -1) {
+	height = winPtr->reqHeight;
+    } else if (wmPtr->gridWin != NULL) {
+	height = winPtr->reqHeight
+		+ (wmPtr->height - wmPtr->reqGridHeight)*wmPtr->heightInc;
+    } else {
+	height = wmPtr->height;
+    }
+    if (height <= 0) {
+	height = 1;
+    }
+
+    /*
+     * Compute the new position for the upper-left pixel of the window's
+     * decorative frame.  This is tricky, because we need to include the
+     * border widths supplied by a reparented parent in this calculation,
+     * but can't use the parent's current overall size since that may
+     * change as a result of this code.
+     */
+
+    if (wmPtr->flags & WM_NEGATIVE_X) {
+	x = wmPtr->vRootWidth - wmPtr->x
+		- (width + (wmPtr->parentWidth - winPtr->changes.width));
+    } else {
+	x =  wmPtr->x;
+    }
+    if (wmPtr->flags & WM_NEGATIVE_Y) {
+	y = wmPtr->vRootHeight - wmPtr->y
+		- (height + (wmPtr->parentHeight - winPtr->changes.height));
+    } else {
+	y =  wmPtr->y;
+    }
+
+    /*
+     * If the window's size is going to change and the window is
+     * supposed to not be resizable by the user, then we have to
+     * update the size hints.  There may also be a size-hint-update
+     * request pending from somewhere else, too.
+     */
+
+    if (((width != winPtr->changes.width)
+	    || (height != winPtr->changes.height))
+	    && (wmPtr->gridWin == NULL)
+	    && ((wmPtr->sizeHintsFlags & (PMinSize|PMaxSize)) == 0)) {
+	wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
+    }
+    if (wmPtr->flags & WM_UPDATE_SIZE_HINTS) {
+	UpdateSizeHints(winPtr);
+    }
+
+    /*
+     * Reconfigure the wrapper if it isn't already configured correctly.
+     * A few tricky points:
+     *
+     * 1. If the window is embeddedand the container is also in this
+     *    process, don't actually reconfigure the window; just pass the
+     *    desired size on to the container.  Also, zero out any position
+     *    information, since embedded windows are not allowed to move.
+     * 2. Sometimes the window manager will give us a different size
+     *    than we asked for (e.g. mwm has a minimum size for windows), so
+     *    base the size check on what we *asked for* last time, not what we
+     *    got.
+     * 3. Can't just reconfigure always, because we may not get a
+     *    ConfigureNotify event back if nothing changed, so
+     *    WaitForConfigureNotify will hang a long time.
+     * 4. Don't move window unless a new position has been requested for
+     *	  it.  This is because of "features" in some window managers (e.g.
+     *    twm, as of 4/24/91) where they don't interpret coordinates
+     *    according to ICCCM.  Moving a window to its current location may
+     *    cause it to shift position on the screen.
+     */
+
+    if ((winPtr->flags & (TK_EMBEDDED|TK_BOTH_HALVES))
+	    == (TK_EMBEDDED|TK_BOTH_HALVES)) {
+	/*
+	 * This window is embedded and the container is also in this
+	 * process, so we don't need to do anything special about the
+	 * geometry, except to make sure that the desired size is known
+	 * by the container.  Also, zero out any position information,
+	 * since embedded windows are not allowed to move.
+	 */
+
+	wmPtr->x = wmPtr->y = 0;
+	wmPtr->flags &= ~(WM_NEGATIVE_X|WM_NEGATIVE_Y);
+	height += wmPtr->menuHeight;
+	Tk_GeometryRequest((Tk_Window) TkpGetOtherWindow(winPtr),
+		width, height);
+	return;
+    }
+    serial = NextRequest(winPtr->display);
+    height += wmPtr->menuHeight;
+    if (wmPtr->flags & WM_MOVE_PENDING) {
+	if ((x == winPtr->changes.x) && (y == winPtr->changes.y)
+		&& (width == wmPtr->wrapperPtr->changes.width)
+		&& (height == wmPtr->wrapperPtr->changes.height)) {
+	    /*
+	     * The window already has the correct geometry, so don't bother
+	     * to configure it;  the X server appears to ignore these
+	     * requests, so we won't get back a ConfigureNotify and the
+	     * WaitForConfigureNotify call below will hang for a while.
+	     */
+
+	    wmPtr->flags &= ~WM_MOVE_PENDING;
+	    return;
+	}
+	wmPtr->configWidth = width;
+	wmPtr->configHeight = height;
+	if (wmTracing) {
+	   printf("UpdateGeometryInfo moving to %d %d, resizing to %d x %d,\n",
+                   x, y, width, height);
+	}
+	XMoveResizeWindow(winPtr->display, wmPtr->wrapperPtr->window, x, y,
+		(unsigned) width, (unsigned) height);
+    } else if ((width != wmPtr->configWidth)
+	    || (height != wmPtr->configHeight)) {
+	if ((width == wmPtr->wrapperPtr->changes.width)
+		&& (height == wmPtr->wrapperPtr->changes.height)) {
+	    /*
+	     * The window is already just the size we want, so don't bother
+	     * to configure it;  the X server appears to ignore these
+	     * requests, so we won't get back a ConfigureNotify and the
+	     * WaitForConfigureNotify call below will hang for a while.
+	     */
+
+	    return;
+	}
+	wmPtr->configWidth = width;
+	wmPtr->configHeight = height;
+	if (wmTracing) {
+	    printf("UpdateGeometryInfo resizing to %d x %d\n", width, height);
+	}
+	XResizeWindow(winPtr->display, wmPtr->wrapperPtr->window,
+		(unsigned) width, (unsigned) height);
+    } else if ((wmPtr->menubar != NULL)
+	    && ((Tk_Width(wmPtr->menubar) != wmPtr->wrapperPtr->changes.width)
+	    || (Tk_Height(wmPtr->menubar) != wmPtr->menuHeight))) {
+	/*
+	 * It is possible that the window's overall size has not changed
+	 * but the menu size has.
+	 */
+	
+	Tk_MoveResizeWindow(wmPtr->menubar, 0, 0,
+		wmPtr->wrapperPtr->changes.width, wmPtr->menuHeight);
+	XResizeWindow(winPtr->display, wmPtr->wrapperPtr->window,
+		(unsigned) width, (unsigned) height);
+    } else {
+	return;
+    }
+
+    /*
+     * Wait for the configure operation to complete.  Don't need to do
+     * this, however, if the window is about to be mapped:  it will be
+     * taken care of elsewhere.
+     */
+
+    if (!(wmPtr->flags & WM_ABOUT_TO_MAP)) {
+	WaitForConfigureNotify(winPtr, serial);
+    }
+}
+
+/*
+ *--------------------------------------------------------------
+ *
+ * UpdateSizeHints --
+ *
+ *	This procedure is called to update the window manager's
+ *	size hints information from the information in a WmInfo
+ *	structure.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	Properties get changed for winPtr.
+ *
+ *--------------------------------------------------------------
+ */
+
+static void
+UpdateSizeHints(winPtr)
+    TkWindow *winPtr;
+{
+    register WmInfo *wmPtr = winPtr->wmInfoPtr;
+    XSizeHints *hintsPtr;
+    int maxWidth, maxHeight;
+
+    wmPtr->flags &= ~WM_UPDATE_SIZE_HINTS;
+
+    hintsPtr = XAllocSizeHints();
+    if (hintsPtr == NULL) {
+	return;
+    }
+
+    /*
+     * Compute the pixel-based sizes for the various fields in the
+     * size hints structure, based on the grid-based sizes in
+     * our structure.
+     */
+
+    GetMaxSize(wmPtr, &maxWidth, &maxHeight);
+    if (wmPtr->gridWin != NULL) {
+	hintsPtr->base_width = winPtr->reqWidth
+		- (wmPtr->reqGridWidth * wmPtr->widthInc);
+	if (hintsPtr->base_width < 0) {
+	    hintsPtr->base_width = 0;
+	}
+	hintsPtr->base_height = winPtr->reqHeight + wmPtr->menuHeight
+		- (wmPtr->reqGridHeight * wmPtr->heightInc);
+	if (hintsPtr->base_height < 0) {
+	    hintsPtr->base_height = 0;
+	}
+	hintsPtr->min_width = hintsPtr->base_width
+		+ (wmPtr->minWidth * wmPtr->widthInc);
+	hintsPtr->min_height = hintsPtr->base_height
+		+ (wmPtr->minHeight * wmPtr->heightInc);
+	hintsPtr->max_width = hintsPtr->base_width
+		+ (maxWidth * wmPtr->widthInc);
+	hintsPtr->max_height = hintsPtr->base_height
+		+ (maxHeight * wmPtr->heightInc);
+    } else {
+	hintsPtr->min_width = wmPtr->minWidth;
+	hintsPtr->min_height = wmPtr->minHeight;
+	hintsPtr->max_width = maxWidth;
+	hintsPtr->max_height = maxHeight;
+	hintsPtr->base_width = 0;
+	hintsPtr->base_height = 0;
+    }
+    hintsPtr->width_inc = wmPtr->widthInc;
+    hintsPtr->height_inc = wmPtr->heightInc;
+    hintsPtr->min_aspect.x = wmPtr->minAspect.x;
+    hintsPtr->min_aspect.y = wmPtr->minAspect.y;
+    hintsPtr->max_aspect.x = wmPtr->maxAspect.x;
+    hintsPtr->max_aspect.y = wmPtr->maxAspect.y;
+    hintsPtr->win_gravity = wmPtr->gravity;
+    hintsPtr->flags = wmPtr->sizeHintsFlags | PMinSize | PMaxSize;
+
+    /*
+     * If the window isn't supposed to be resizable, then set the
+     * minimum and maximum dimensions to be the same.
+     */
+
+    if (wmPtr->flags & WM_WIDTH_NOT_RESIZABLE) {
+	if (wmPtr->width >= 0) {
+	    hintsPtr->min_width = wmPtr->width;
+	} else {
+	    hintsPtr->min_width = winPtr->reqWidth;
+	}
+	hintsPtr->max_width = hintsPtr->min_width;
+    }
+    if (wmPtr->flags & WM_HEIGHT_NOT_RESIZABLE) {
+	if (wmPtr->height >= 0) {
+	    hintsPtr->min_height = wmPtr->height;
+	} else {
+	    hintsPtr->min_height = winPtr->reqHeight + wmPtr->menuHeight;
+	}
+	hintsPtr->max_height = hintsPtr->min_height;
+    }
+
+    XSetWMNormalHints(winPtr->display, wmPtr->wrapperPtr->window, hintsPtr);
+
+    XFree((char *) hintsPtr);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * WaitForConfigureNotify --
+ *
+ *	This procedure is invoked in order to synchronize with the
+ *	window manager.  It waits for a ConfigureNotify event to
+ *	arrive, signalling that the window manager has seen an attempt
+ *	on our part to move or resize a top-level window.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	Delays the execution of the process until a ConfigureNotify event
+ *	arrives with serial number at least as great as serial.  This
+ *	is useful for two reasons:
+ *
+ *	1. It's important to distinguish ConfigureNotify events that are
+ *	   coming in response to a request we've made from those generated
+ *	   spontaneously by the user.  The reason for this is that if the
+ *	   user resizes the window we take that as an order to ignore
+ *	   geometry requests coming from inside the window hierarchy.  If
+ *	   we accidentally interpret a response to our request as a
+ *	   user-initiated action, the window will stop responding to
+ *	   new geometry requests.  To make this distinction, (a) this
+ *	   procedure sets a flag for TopLevelEventProc to indicate that
+ *	   we're waiting to sync with the wm, and (b) all changes to
+ *	   the size of a top-level window are followed by calls to this
+ *	   procedure.
+ *	2. Races and confusion can come about if there are multiple
+ *	   operations outstanding at a time (e.g. two different resizes
+ *	   of the top-level window:  it's hard to tell which of the
+ *	   ConfigureNotify events coming back is for which request).
+ *	While waiting, all events covered by StructureNotifyMask are
+ *	processed and all others are deferred.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+WaitForConfigureNotify(winPtr, serial)
+    TkWindow *winPtr;		/* Top-level window for which we want
+				 * to see a ConfigureNotify. */
+    unsigned long serial;	/* Serial number of resize request.  Want to
+				 * be sure wm has seen this. */
+{
+    WmInfo *wmPtr = winPtr->wmInfoPtr;
+    XEvent event;
+    int diff, code;
+    int gotConfig = 0;
+
+    /*
+     * One more tricky detail about this procedure.  In some cases the
+     * window manager will decide to ignore a configure request (e.g.
+     * because it thinks the window is already in the right place).
+     * To avoid hanging in this situation, only wait for a few seconds,
+     * then give up.
+     */
+
+    while (!gotConfig) {
+	wmPtr->flags |= WM_SYNC_PENDING;
+	code = WaitForEvent(winPtr->display, wmPtr->wrapperPtr->window,
+		ConfigureNotify, &event);
+	wmPtr->flags &= ~WM_SYNC_PENDING;
+	if (code != TCL_OK) {
+	    if (wmTracing) {
+		printf("WaitForConfigureNotify giving up on %s\n",
+			winPtr->pathName);
+	    }
+	    break;
+	}
+	diff = event.xconfigure.serial - serial;
+	if (diff >= 0) {
+	    gotConfig = 1;
+	}
+    }
+    wmPtr->flags &= ~WM_MOVE_PENDING;
+    if (wmTracing) {
+	printf("WaitForConfigureNotify finished with %s, serial %ld\n",
+		winPtr->pathName, serial);
+    }
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * WaitForEvent --
+ *
+ *	This procedure is used by WaitForConfigureNotify and
+ *	WaitForMapNotify to wait for an event of a certain type
+ *	to arrive.
+ *
+ * Results:
+ *	Under normal conditions, TCL_OK is returned and an event for
+ *	display and window that matches "mask" is stored in *eventPtr.
+ *	This event  has already been processed by Tk before this procedure
+ *	returns.  If a long time goes by with no event of the right type
+ *	arriving, or if an error occurs while waiting for the event to
+ *	arrive, then TCL_ERROR is returned.
+ *
+ * Side effects:
+ *	While waiting for the desired event to occur, Configurenotify
+ *	events for window are processed, as are all ReparentNotify events,
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+WaitForEvent(display, window, type, eventPtr)
+    Display *display;		/* Display event is coming from. */
+    Window window;		/* Window for which event is desired. */
+    int type;			/* Type of event that is wanted. */
+    XEvent *eventPtr;		/* Place to store event. */
+{
+    WaitRestrictInfo info;
+    Tk_RestrictProc *oldRestrictProc;
+    ClientData oldRestrictData;
+    Tcl_Time timeout;
+
+    /*
+     * Set up an event filter to select just the events we want, and
+     * a timer handler, then wait for events until we get the event
+     * we want or a timeout happens.
+     */
+
+    info.display = display;
+    info.window = window;
+    info.type = type;
+    info.eventPtr = eventPtr;
+    info.foundEvent = 0;
+    oldRestrictProc = Tk_RestrictEvents(WaitRestrictProc, (ClientData) &info,
+	    &oldRestrictData);
+
+    TclpGetTime(&timeout);
+    timeout.sec += 2;
+
+    while (!info.foundEvent) {
+	if (!TkUnixDoOneXEvent(&timeout)) {
+	    break;
+	}
+    }
+    (void) Tk_RestrictEvents(oldRestrictProc, oldRestrictData,
+	    &oldRestrictData);
+    if (info.foundEvent) {
+	return TCL_OK;
+    }
+    return TCL_ERROR;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * WaitRestrictProc --
+ *
+ *	This procedure is a Tk_RestrictProc that is used to filter
+ *	events while WaitForEvent is active.
+ *
+ * Results:
+ *	Returns TK_PROCESS_EVENT if the right event is found.  Also
+ *	returns TK_PROCESS_EVENT if any ReparentNotify event is found
+ *	for window or if the event is a ConfigureNotify for window.
+ *	Otherwise returns TK_DEFER_EVENT.
+ *
+ * Side effects:
+ *	An event may get stored in the area indicated by the caller
+ *	of WaitForEvent.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static Tk_RestrictAction
+WaitRestrictProc(clientData, eventPtr)
+    ClientData clientData;	/* Pointer to WaitRestrictInfo structure. */
+    XEvent *eventPtr;		/* Event that is about to be handled. */
+{
+    WaitRestrictInfo *infoPtr = (WaitRestrictInfo *) clientData;
+
+    if (eventPtr->type == ReparentNotify) {
+	return TK_PROCESS_EVENT;
+    }
+    if ((eventPtr->xany.window != infoPtr->window)
+	    || (eventPtr->xany.display != infoPtr->display)) {
+	return TK_DEFER_EVENT;
+    }
+    if (eventPtr->type == infoPtr->type) {
+	*infoPtr->eventPtr = *eventPtr;
+	infoPtr->foundEvent = 1;
+	return TK_PROCESS_EVENT;
+    }
+    if (eventPtr->type == ConfigureNotify) {
+	return TK_PROCESS_EVENT;
+    }
+    return TK_DEFER_EVENT;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * WaitForMapNotify --
+ *
+ *	This procedure is invoked in order to synchronize with the
+ *	window manager.  It waits for the window's mapped state to
+ *	reach the value given by mapped.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	Delays the execution of the process until winPtr becomes mapped
+ *	or unmapped, depending on the "mapped" argument.  This allows us
+ *	to synchronize with the window manager, and allows us to
+ *	identify changes in window size that come about when the window
+ *	manager first starts managing the window (as opposed to those
+ *	requested interactively by the user later).  See the comments
+ *	for WaitForConfigureNotify and WM_SYNC_PENDING.  While waiting,
+ *	all events covered by StructureNotifyMask are processed and all
+ *	others are deferred.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+WaitForMapNotify(winPtr, mapped)
+    TkWindow *winPtr;		/* Top-level window for which we want
+				 * to see a particular mapping state. */
+    int mapped;			/* If non-zero, wait for window to become
+				 * mapped, otherwise wait for it to become
+				 * unmapped. */
+{
+    WmInfo *wmPtr = winPtr->wmInfoPtr;
+    XEvent event;
+    int code;
+
+    while (1) {
+	if (mapped) {
+	    if (winPtr->flags & TK_MAPPED) {
+		break;
+	    }
+	} else if (!(winPtr->flags & TK_MAPPED)) {
+	    break;
+	}
+	wmPtr->flags |= WM_SYNC_PENDING;
+	code = WaitForEvent(winPtr->display, wmPtr->wrapperPtr->window,
+		mapped ? MapNotify : UnmapNotify, &event);
+	wmPtr->flags &= ~WM_SYNC_PENDING;
+	if (code != TCL_OK) {
+	    /*
+	     * There are some bizarre situations in which the window
+	     * manager can't respond or chooses not to (e.g. if we've
+	     * got a grab set it can't respond).  If this happens then
+	     * just quit.
+	     */
+
+	    if (wmTracing) {
+		printf("WaitForMapNotify giving up on %s\n", winPtr->pathName);
+	    }
+	    break;
+	}
+    }
+    wmPtr->flags &= ~WM_MOVE_PENDING;
+    if (wmTracing) {
+	printf("WaitForMapNotify finished with %s\n", winPtr->pathName);
+    }
+}
+
+/*
+ *--------------------------------------------------------------
+ *
+ * UpdateHints --
+ *
+ *	This procedure is called to update the window manager's
+ *	hints information from the information in a WmInfo
+ *	structure.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	Properties get changed for winPtr.
+ *
+ *--------------------------------------------------------------
+ */
+
+static void
+UpdateHints(winPtr)
+    TkWindow *winPtr;
+{
+    WmInfo *wmPtr = winPtr->wmInfoPtr;
+
+    if (wmPtr->flags & WM_NEVER_MAPPED) {
+	return;
+    }
+    XSetWMHints(winPtr->display, wmPtr->wrapperPtr->window, &wmPtr->hints);
+}
+
+/*
+ *--------------------------------------------------------------
+ *
+ * ParseGeometry --
+ *
+ *	This procedure parses a geometry string and updates
+ *	information used to control the geometry of a top-level
+ *	window.
+ *
+ * Results:
+ *	A standard Tcl return value, plus an error message in
+ *	interp->result if an error occurs.
+ *
+ * Side effects:
+ *	The size and/or location of winPtr may change.
+ *
+ *--------------------------------------------------------------
+ */
+
+static int
+ParseGeometry(interp, string, winPtr)
+    Tcl_Interp *interp;		/* Used for error reporting. */
+    char *string;		/* String containing new geometry.  Has the
+				 * standard form "=wxh+x+y". */
+    TkWindow *winPtr;		/* Pointer to top-level window whose
+				 * geometry is to be changed. */
+{
+    register WmInfo *wmPtr = winPtr->wmInfoPtr;
+    int x, y, width, height, flags;
+    char *end;
+    register char *p = string;
+
+    /*
+     * The leading "=" is optional.
+     */
+
+    if (*p == '=') {
+	p++;
+    }
+
+    /*
+     * Parse the width and height, if they are present.  Don't
+     * actually update any of the fields of wmPtr until we've
+     * successfully parsed the entire geometry string.
+     */
+
+    width = wmPtr->width;
+    height = wmPtr->height;
+    x = wmPtr->x;
+    y = wmPtr->y;
+    flags = wmPtr->flags;
+    if (isdigit(UCHAR(*p))) {
+	width = strtoul(p, &end, 10);
+	p = end;
+	if (*p != 'x') {
+	    goto error;
+	}
+	p++;
+	if (!isdigit(UCHAR(*p))) {
+	    goto error;
+	}
+	height = strtoul(p, &end, 10);
+	p = end;
+    }
+
+    /*
+     * Parse the X and Y coordinates, if they are present.
+     */
+
+    if (*p != '\0') {
+	flags &= ~(WM_NEGATIVE_X | WM_NEGATIVE_Y);
+	if (*p == '-') {
+	    flags |= WM_NEGATIVE_X;
+	} else if (*p != '+') {
+	    goto error;
+	}
+	p++;
+	if (!isdigit(UCHAR(*p)) && (*p != '-')) {
+	    goto error;
+	}
+	x = strtol(p, &end, 10);
+	p = end;
+	if (*p == '-') {
+	    flags |= WM_NEGATIVE_Y;
+	} else if (*p != '+') {
+	    goto error;
+	}
+	p++;
+	if (!isdigit(UCHAR(*p)) && (*p != '-')) {
+	    goto error;
+	}
+	y = strtol(p, &end, 10);
+	if (*end != '\0') {
+	    goto error;
+	}
+
+	/*
+	 * Assume that the geometry information came from the user,
+	 * unless an explicit source has been specified.  Otherwise
+	 * most window managers assume that the size hints were
+	 * program-specified and they ignore them.
+	 */
+
+	if ((wmPtr->sizeHintsFlags & (USPosition|PPosition)) == 0) {
+	    wmPtr->sizeHintsFlags |= USPosition;
+	    flags |= WM_UPDATE_SIZE_HINTS;
+	}
+    }
+
+    /*
+     * Everything was parsed OK.  Update the fields of *wmPtr and
+     * arrange for the appropriate information to be percolated out
+     * to the window manager at the next idle moment.
+     */
+
+    wmPtr->width = width;
+    wmPtr->height = height;
+    wmPtr->x = x;
+    wmPtr->y = y;
+    flags |= WM_MOVE_PENDING;
+    wmPtr->flags = flags;
+
+    if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) {
+	Tcl_DoWhenIdle(UpdateGeometryInfo, (ClientData) winPtr);
+	wmPtr->flags |= WM_UPDATE_PENDING;
+    }
+    return TCL_OK;
+
+    error:
+    Tcl_AppendResult(interp, "bad geometry specifier \"",
+	    string, "\"", (char *) NULL);
+    return TCL_ERROR;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * Tk_GetRootCoords --
+ *
+ *	Given a token for a window, this procedure traces through the
+ *	window's lineage to find the (virtual) root-window coordinates
+ *	corresponding to point (0,0) in the window.
+ *
+ * Results:
+ *	The locations pointed to by xPtr and yPtr are filled in with
+ *	the root coordinates of the (0,0) point in tkwin.  If a virtual
+ *	root window is in effect for the window, then the coordinates
+ *	in the virtual root are returned.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+Tk_GetRootCoords(tkwin, xPtr, yPtr)
+    Tk_Window tkwin;		/* Token for window. */
+    int *xPtr;			/* Where to store x-displacement of (0,0). */
+    int *yPtr;			/* Where to store y-displacement of (0,0). */
+{
+    int x, y;
+    register TkWindow *winPtr = (TkWindow *) tkwin;
+
+    /*
+     * Search back through this window's parents all the way to a
+     * top-level window, combining the offsets of each window within
+     * its parent.
+     */
+
+    x = y = 0;
+    while (1) {
+	x += winPtr->changes.x + winPtr->changes.border_width;
+	y += winPtr->changes.y + winPtr->changes.border_width;
+	if ((winPtr->wmInfoPtr != NULL)
+		&& (winPtr->wmInfoPtr->menubar == (Tk_Window) winPtr)) {
+	    /*
+	     * This window is a special menubar; switch over to its
+	     * associated toplevel, compensate for their differences in
+	     * y coordinates, then continue with the toplevel (in case
+	     * it's embedded).
+	     */
+
+	    y -= winPtr->wmInfoPtr->menuHeight;
+	    winPtr = winPtr->wmInfoPtr->winPtr;
+	    continue;
+	}
+	if (winPtr->flags & TK_TOP_LEVEL) {
+	    TkWindow *otherPtr;
+
+	    if (!(winPtr->flags & TK_EMBEDDED)) {
+		break;
+	    }
+	    otherPtr = TkpGetOtherWindow(winPtr);
+	    if (otherPtr == NULL) {
+		/*
+		 * The container window is not in the same application.
+		 * Query the X server.
+		 */
+
+		Window root, dummyChild;
+		int rootX, rootY;
+
+		root = winPtr->wmInfoPtr->vRoot;
+		if (root == None) {
+		    root = RootWindowOfScreen(Tk_Screen((Tk_Window)winPtr));
+		}
+		XTranslateCoordinates(winPtr->display, winPtr->window, 
+		    root, 0, 0, &rootX, &rootY, &dummyChild);
+		x += rootX;
+		y += rootY;
+		break;
+	    } else {
+		/*
+		 * The container window is in the same application.
+		 * Let's query its coordinates.
+		 */
+
+		winPtr = otherPtr;
+		continue;
+	    }
+	}
+	winPtr = winPtr->parentPtr;
+	if (winPtr == NULL) {
+	    break;
+	}
+    }
+    *xPtr = x;
+    *yPtr = y;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * Tk_CoordsToWindow --
+ *
+ *	Given the (virtual) root coordinates of a point, this procedure
+ *	returns the token for the top-most window covering that point,
+ *	if there exists such a window in this application.
+ *
+ * Results:
+ *	The return result is either a token for the window corresponding
+ *	to rootX and rootY, or else NULL to indicate that there is no such
+ *	window.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+Tk_Window
+Tk_CoordsToWindow(rootX, rootY, tkwin)
+    int rootX, rootY;		/* Coordinates of point in root window.  If
+				 * a virtual-root window manager is in use,
+				 * these coordinates refer to the virtual
+				 * root, not the real root. */
+    Tk_Window tkwin;		/* Token for any window in application;
+				 * used to identify the display. */
+{
+    Window window, parent, child;
+    int x, y, childX, childY, tmpx, tmpy, bd;
+    WmInfo *wmPtr;
+    TkWindow *winPtr, *childPtr, *nextPtr;
+
+    /*
+     * Step 1: scan the list of toplevel windows to see if there is a
+     * virtual root for the screen we're interested in.  If so, we have
+     * to translate the coordinates from virtual root to root
+     * coordinates.
+     */
+
+    parent = window = RootWindowOfScreen(Tk_Screen(tkwin));
+    x = rootX;
+    y = rootY;
+    for (wmPtr = firstWmPtr; wmPtr != NULL; wmPtr = wmPtr->nextPtr) {
+	if (Tk_Screen(wmPtr->winPtr) != Tk_Screen(tkwin)) {
+	    continue;
+	}
+	if (wmPtr->vRoot == None) {
+	    continue;
+	}
+	UpdateVRootGeometry(wmPtr);
+	parent = wmPtr->vRoot;
+	break;
+    }
+
+    /*
+     * Step 2: work down through the window hierarchy starting at the
+     * root. For each window, find the child that contains the given
+     * point and then see if this child is either a wrapper for one of
+     * our toplevel windows or a window manager decoration window for
+     * one of our toplevels.  This approach handles several tricky
+     * cases:
+     *
+     * 1. There may be a virtual root window between the root and one of
+     *    our toplevels.
+     * 2. If a toplevel is embedded, we may have to search through the
+     *    windows of the container application(s) before getting to
+     *    the toplevel.
+     */
+
+    while (1) {
+	if (XTranslateCoordinates(Tk_Display(tkwin), parent, window,
+		x, y, &childX, &childY, &child) == False) {
+	    panic("Tk_CoordsToWindow got False return from XTranslateCoordinates");
+	}
+	if (child == None) {
+	    return NULL;
+	}
+	for (wmPtr = firstWmPtr; wmPtr != NULL; wmPtr = wmPtr->nextPtr) {
+	    if (wmPtr->reparent == child) {
+		goto gotToplevel;
+	    }
+	    if (wmPtr->wrapperPtr != NULL) {
+		if (child == wmPtr->wrapperPtr->window) {
+		    goto gotToplevel;
+		}
+	    } else if (child == wmPtr->winPtr->window) {
+		goto gotToplevel;
+	    }
+	}
+	x = childX;
+	y = childY;
+	parent = window;
+	window = child;
+    }
+
+    gotToplevel:
+    winPtr = wmPtr->winPtr;
+    if (winPtr->mainPtr != ((TkWindow *) tkwin)->mainPtr) {
+	return NULL;
+    }
+
+    /*
+     * Step 3: at this point winPtr and wmPtr refer to the toplevel that
+     * contains the given coordinates, and childX and childY give the
+     * translated coordinates in the *parent* of the toplevel.  Now
+     * decide whether the coordinates are in the menubar or the actual
+     * toplevel, and translate the coordinates into the coordinate
+     * system of that window.
+     */
+
+    x = childX - winPtr->changes.x;
+    y = childY - winPtr->changes.y;
+    if ((x < 0) || (x >= winPtr->changes.width)
+	    || (y >= winPtr->changes.height)) {
+	return NULL;
+    }
+    if (y < 0) {
+	winPtr = (TkWindow *) wmPtr->menubar;
+	if (winPtr == NULL) {
+	    return NULL;
+	}
+	y += wmPtr->menuHeight;
+	if (y < 0) {
+	    return NULL;
+	}
+    }
+
+    /*
+     * Step 4: work down through the hierarchy underneath the current
+     * window. At each level, scan through all the children to find the
+     * highest one in the stacking order that contains the point.  Then
+     * repeat the whole process on that child.
+     */
+
+    while (1) {
+	nextPtr = NULL;
+	for (childPtr = winPtr->childList; childPtr != NULL;
+		childPtr = childPtr->nextPtr) {
+	    if (!Tk_IsMapped(childPtr) || (childPtr->flags & TK_TOP_LEVEL)) {
+		continue;
+	    }
+	    if (childPtr->flags & TK_REPARENTED) {
+		continue;
+	    }
+	    tmpx = x - childPtr->changes.x;
+	    tmpy = y - childPtr->changes.y;
+	    bd = childPtr->changes.border_width;
+	    if ((tmpx >= -bd) && (tmpy >= -bd)
+		    && (tmpx < (childPtr->changes.width + bd))
+		    && (tmpy < (childPtr->changes.height + bd))) {
+		nextPtr = childPtr;
+	    }
+	}
+	if (nextPtr == NULL) {
+	    break;
+	}
+	winPtr = nextPtr;
+	x -= winPtr->changes.x;
+	y -= winPtr->changes.y;
+	if ((winPtr->flags & TK_CONTAINER)
+		&& (winPtr->flags & TK_BOTH_HALVES)) {
+	    /*
+	     * The window containing the point is a container, and the
+	     * embedded application is in this same process.  Switch
+	     * over to the toplevel for the embedded application and
+	     * start processing that toplevel from scratch.
+	     */
+
+	    winPtr = TkpGetOtherWindow(winPtr);
+	    wmPtr = winPtr->wmInfoPtr;
+	    childX = x;
+	    childY = y;
+	    goto gotToplevel;
+	}
+    }
+    return (Tk_Window) winPtr;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * UpdateVRootGeometry --
+ *
+ *	This procedure is called to update all the virtual root
+ *	geometry information in wmPtr.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	The vRootX, vRootY, vRootWidth, and vRootHeight fields in
+ *	wmPtr are filled with the most up-to-date information.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+UpdateVRootGeometry(wmPtr)
+    WmInfo *wmPtr;		/* Window manager information to be
+				 * updated.  The wmPtr->vRoot field must
+				 * be valid. */
+{
+    TkWindow *winPtr = wmPtr->winPtr;
+    int bd;
+    unsigned int dummy;
+    Window dummy2;
+    Status status;
+    Tk_ErrorHandler handler;
+
+    /*
+     * If this isn't a virtual-root window manager, just return information
+     * about the screen.
+     */
+
+    wmPtr->flags &= ~WM_VROOT_OFFSET_STALE;
+    if (wmPtr->vRoot == None) {
+	noVRoot:
+	wmPtr->vRootX = wmPtr->vRootY = 0;
+	wmPtr->vRootWidth = DisplayWidth(winPtr->display, winPtr->screenNum);
+	wmPtr->vRootHeight = DisplayHeight(winPtr->display, winPtr->screenNum);
+	return;
+    }
+
+    /*
+     * Refresh the virtual root information if it's out of date.
+     */
+
+    handler = Tk_CreateErrorHandler(winPtr->display, -1, -1, -1,
+	    (Tk_ErrorProc *) NULL, (ClientData) NULL);
+    status = XGetGeometry(winPtr->display, wmPtr->vRoot,
+	    &dummy2, &wmPtr->vRootX, &wmPtr->vRootY,
+	    (unsigned int *) &wmPtr->vRootWidth,
+	    (unsigned int *) &wmPtr->vRootHeight, (unsigned int *) &bd,
+	    &dummy);
+    if (wmTracing) {
+	printf("UpdateVRootGeometry: x = %d, y = %d, width = %d, ",
+		wmPtr->vRootX, wmPtr->vRootY, wmPtr->vRootWidth);
+	printf("height = %d, status = %d\n", wmPtr->vRootHeight, status);
+    }
+    Tk_DeleteErrorHandler(handler);
+    if (status == 0) {
+	/*
+	 * The virtual root is gone!  Pretend that it never existed.
+	 */
+
+	wmPtr->vRoot = None;
+	goto noVRoot;
+    }
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * Tk_GetVRootGeometry --
+ *
+ *	This procedure returns information about the virtual root
+ *	window corresponding to a particular Tk window.
+ *
+ * Results:
+ *	The values at xPtr, yPtr, widthPtr, and heightPtr are set
+ *	with the offset and dimensions of the root window corresponding
+ *	to tkwin.  If tkwin is being managed by a virtual root window
+ *	manager these values correspond to the virtual root window being
+ *	used for tkwin;  otherwise the offsets will be 0 and the
+ *	dimensions will be those of the screen.
+ *
+ * Side effects:
+ *	Vroot window information is refreshed if it is out of date.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+Tk_GetVRootGeometry(tkwin, xPtr, yPtr, widthPtr, heightPtr)
+    Tk_Window tkwin;		/* Window whose virtual root is to be
+				 * queried. */
+    int *xPtr, *yPtr;		/* Store x and y offsets of virtual root
+				 * here. */
+    int *widthPtr, *heightPtr;	/* Store dimensions of virtual root here. */
+{
+    WmInfo *wmPtr;
+    TkWindow *winPtr = (TkWindow *) tkwin;
+
+    /*
+     * Find the top-level window for tkwin, and locate the window manager
+     * information for that window.
+     */
+
+    while (!(winPtr->flags & TK_TOP_LEVEL) && (winPtr->parentPtr != NULL)) {
+	winPtr = winPtr->parentPtr;
+    }
+    wmPtr = winPtr->wmInfoPtr;
+
+    /*
+     * Make sure that the geometry information is up-to-date, then copy
+     * it out to the caller.
+     */
+
+    if (wmPtr->flags & WM_VROOT_OFFSET_STALE) {
+	UpdateVRootGeometry(wmPtr);
+    }
+    *xPtr = wmPtr->vRootX;
+    *yPtr = wmPtr->vRootY;
+    *widthPtr = wmPtr->vRootWidth;
+    *heightPtr = wmPtr->vRootHeight;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * Tk_MoveToplevelWindow --
+ *
+ *	This procedure is called instead of Tk_MoveWindow to adjust
+ *	the x-y location of a top-level window.  It delays the actual
+ *	move to a later time and keeps window-manager information
+ *	up-to-date with the move
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	The window is eventually moved so that its upper-left corner
+ *	(actually, the upper-left corner of the window's decorative
+ *	frame, if there is one) is at (x,y).
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+Tk_MoveToplevelWindow(tkwin, x, y)
+    Tk_Window tkwin;		/* Window to move. */
+    int x, y;			/* New location for window (within
+				 * parent). */
+{
+    TkWindow *winPtr = (TkWindow *) tkwin;
+    register WmInfo *wmPtr = winPtr->wmInfoPtr;
+
+    if (!(winPtr->flags & TK_TOP_LEVEL)) {
+	panic("Tk_MoveToplevelWindow called with non-toplevel window");
+    }
+    wmPtr->x = x;
+    wmPtr->y = y;
+    wmPtr->flags |= WM_MOVE_PENDING;
+    wmPtr->flags &= ~(WM_NEGATIVE_X|WM_NEGATIVE_Y);
+    if ((wmPtr->sizeHintsFlags & (USPosition|PPosition)) == 0) {
+	wmPtr->sizeHintsFlags |= USPosition;
+	wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
+    }
+
+    /*
+     * If the window has already been mapped, must bring its geometry
+     * up-to-date immediately, otherwise an event might arrive from the
+     * server that would overwrite wmPtr->x and wmPtr->y and lose the
+     * new position.
+     */
+
+    if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
+	if (wmPtr->flags & WM_UPDATE_PENDING) {
+	    Tcl_CancelIdleCall(UpdateGeometryInfo, (ClientData) winPtr);
+	}
+	UpdateGeometryInfo((ClientData) winPtr);
+    }
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * UpdateWmProtocols --
+ *
+ *	This procedure transfers the most up-to-date information about
+ *	window manager protocols from the WmInfo structure to the actual
+ *	property on the top-level window.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	The WM_PROTOCOLS property gets changed for wmPtr's window.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+UpdateWmProtocols(wmPtr)
+    register WmInfo *wmPtr;	/* Information about top-level window. */
+{
+    register ProtocolHandler *protPtr;
+    Atom deleteWindowAtom;
+    int count;
+    Atom *arrayPtr, *atomPtr;
+
+    /*
+     * There are only two tricky parts here.  First, there could be any
+     * number of atoms for the window, so count them and malloc an array
+     * to hold all of their atoms.  Second, we *always* want to respond
+     * to the WM_DELETE_WINDOW protocol, even if no-one's officially asked.
+     */
+
+    for (protPtr = wmPtr->protPtr, count = 1; protPtr != NULL;
+	    protPtr = protPtr->nextPtr, count++) {
+	/* Empty loop body;  we're just counting the handlers. */
+    }
+    arrayPtr = (Atom *) ckalloc((unsigned) (count * sizeof(Atom)));
+    deleteWindowAtom = Tk_InternAtom((Tk_Window) wmPtr->winPtr,
+	    "WM_DELETE_WINDOW");
+    arrayPtr[0] = deleteWindowAtom;
+    for (protPtr = wmPtr->protPtr, atomPtr = &arrayPtr[1];
+	    protPtr != NULL; protPtr = protPtr->nextPtr) {
+	if (protPtr->protocol != deleteWindowAtom) {
+	    *atomPtr = protPtr->protocol;
+	    atomPtr++;
+	}
+    }
+    XChangeProperty(wmPtr->winPtr->display, wmPtr->wrapperPtr->window,
+	    Tk_InternAtom((Tk_Window) wmPtr->winPtr, "WM_PROTOCOLS"),
+	    XA_ATOM, 32, PropModeReplace, (unsigned char *) arrayPtr,
+	    atomPtr-arrayPtr);
+    ckfree((char *) arrayPtr);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkWmProtocolEventProc --
+ *
+ *	This procedure is called by the Tk_HandleEvent whenever a
+ *	ClientMessage event arrives whose type is "WM_PROTOCOLS".
+ *	This procedure handles the message from the window manager
+ *	in an appropriate fashion.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	Depends on what sort of handler, if any, was set up for the
+ *	protocol.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+TkWmProtocolEventProc(winPtr, eventPtr)
+    TkWindow *winPtr;		/* Window to which the event was sent. */
+    XEvent *eventPtr;		/* X event. */
+{
+    WmInfo *wmPtr;
+    register ProtocolHandler *protPtr;
+    Atom protocol;
+    int result;
+    char *protocolName;
+    Tcl_Interp *interp;
+
+    wmPtr = winPtr->wmInfoPtr;
+    if (wmPtr == NULL) {
+	return;
+    }
+    protocol = (Atom) eventPtr->xclient.data.l[0];
+
+    /*
+     * Note: it's very important to retrieve the protocol name now,
+     * before invoking the command, even though the name won't be used
+     * until after the command returns.  This is because the command
+     * could delete winPtr, making it impossible for us to use it
+     * later in the call to Tk_GetAtomName.
+     */
+
+    protocolName = Tk_GetAtomName((Tk_Window) winPtr, protocol);
+    for (protPtr = wmPtr->protPtr; protPtr != NULL;
+	    protPtr = protPtr->nextPtr) {
+	if (protocol == protPtr->protocol) {
+	    Tcl_Preserve((ClientData) protPtr);
+            interp = protPtr->interp;
+            Tcl_Preserve((ClientData) interp);
+	    result = Tcl_GlobalEval(interp, protPtr->command);
+	    if (result != TCL_OK) {
+		Tcl_AddErrorInfo(interp, "\n    (command for \"");
+		Tcl_AddErrorInfo(interp, protocolName);
+		Tcl_AddErrorInfo(interp,
+			"\" window manager protocol)");
+		Tcl_BackgroundError(interp);
+	    }
+            Tcl_Release((ClientData) interp);
+	    Tcl_Release((ClientData) protPtr);
+	    return;
+	}
+    }
+
+    /*
+     * No handler was present for this protocol.  If this is a
+     * WM_DELETE_WINDOW message then just destroy the window.
+     */
+
+    if (protocol == Tk_InternAtom((Tk_Window) winPtr, "WM_DELETE_WINDOW")) {
+	Tk_DestroyWindow((Tk_Window) wmPtr->winPtr);
+    }
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkWmRestackToplevel --
+ *
+ *	This procedure restacks a top-level window.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	WinPtr gets restacked  as specified by aboveBelow and otherPtr.
+ *	This procedure doesn't return until the restack has taken
+ *	effect and the ConfigureNotify event for it has been received.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+TkWmRestackToplevel(winPtr, aboveBelow, otherPtr)
+    TkWindow *winPtr;		/* Window to restack. */
+    int aboveBelow;		/* Gives relative position for restacking;
+				 * must be Above or Below. */
+    TkWindow *otherPtr;		/* Window relative to which to restack;
+				 * if NULL, then winPtr gets restacked
+				 * above or below *all* siblings. */
+{
+    XWindowChanges changes;
+    XWindowAttributes atts;
+    unsigned int mask;
+    Window window, dummy1, dummy2, vRoot;
+    Window *children;
+    unsigned int numChildren;
+    int i;
+    int desiredIndex = 0;	/* Initialized to stop gcc warnings. */
+    int ourIndex = 0;		/* Initialized to stop gcc warnings. */
+    unsigned long serial;
+    XEvent event;
+    int diff;
+    Tk_ErrorHandler handler;
+    TkWindow *wrapperPtr;
+
+    changes.stack_mode = aboveBelow;
+    changes.sibling = None;
+    mask = CWStackMode;
+    if (winPtr->window == None) {
+	Tk_MakeWindowExist((Tk_Window) winPtr);
+    }
+    if (winPtr->wmInfoPtr->flags & WM_NEVER_MAPPED) {
+	/*
+	 * Can't set stacking order properly until the window is on the
+	 * screen (mapping it may give it a reparent window), so make sure
+	 * it's on the screen.
+	 */
+
+	TkWmMapWindow(winPtr);
+    }
+    wrapperPtr = winPtr->wmInfoPtr->wrapperPtr;
+    window = (winPtr->wmInfoPtr->reparent != None)
+	    ? winPtr->wmInfoPtr->reparent : wrapperPtr->window;
+    if (otherPtr != NULL) {
+	if (otherPtr->window == None) {
+	    Tk_MakeWindowExist((Tk_Window) otherPtr);
+	}
+	if (otherPtr->wmInfoPtr->flags & WM_NEVER_MAPPED) {
+	    TkWmMapWindow(otherPtr);
+	}
+	changes.sibling = (otherPtr->wmInfoPtr->reparent != None)
+		? otherPtr->wmInfoPtr->reparent
+		: otherPtr->wmInfoPtr->wrapperPtr->window;
+	mask = CWStackMode|CWSibling;
+    }
+
+    /*
+     * Before actually reconfiguring the window, see if it's already
+     * in the right place.  If so then don't reconfigure it.  The
+     * reason for this extra work is that some window managers will
+     * ignore the reconfigure request if the window is already in
+     * the right place, causing a long delay in WaitForConfigureNotify
+     * while it times out.  Special note: if the window is almost in
+     * the right place, and the only windows between it and the right
+     * place aren't mapped, then we don't reconfigure it either, for
+     * the same reason.
+     */
+
+    vRoot = winPtr->wmInfoPtr->vRoot;
+    if (vRoot == None) {
+	vRoot = RootWindowOfScreen(Tk_Screen((Tk_Window) winPtr));
+    }
+    if (XQueryTree(winPtr->display, vRoot, &dummy1, &dummy2,
+	    &children, &numChildren) != 0) {
+	/*
+	 * Find where our window is in the stacking order, and
+	 * compute the desired location in the stacking order.
+	 */
+
+	for (i = 0; i < numChildren; i++) {
+	    if (children[i] == window) {
+		ourIndex = i;
+	    }
+	    if (children[i] == changes.sibling) {
+		desiredIndex = i;
+	    }
+	}
+	if (mask & CWSibling) {
+	    if (aboveBelow == Above) {
+		if (desiredIndex < ourIndex) {
+		    desiredIndex += 1;
+		}
+	    } else {
+		if (desiredIndex > ourIndex) {
+		    desiredIndex -= 1;
+		}
+	    }
+	} else {
+	    if (aboveBelow == Above) {
+		desiredIndex = numChildren-1;
+	    } else {
+		desiredIndex = 0;
+	    }
+	}
+
+	/*
+	 * See if there are any mapped windows between where we are
+	 * and where we want to be.
+	 */
+
+	handler = Tk_CreateErrorHandler(winPtr->display, -1, -1, -1,
+		(Tk_ErrorProc *) NULL, (ClientData) NULL);
+	while (desiredIndex != ourIndex) {
+	    if ((XGetWindowAttributes(winPtr->display, children[desiredIndex],
+		    &atts) != 0) && (atts.map_state != IsUnmapped)) {
+		break;
+	    }
+	    if (desiredIndex < ourIndex) {
+		desiredIndex++;
+	    } else {
+		desiredIndex--;
+	    }
+	}
+	Tk_DeleteErrorHandler(handler);
+	XFree((char *) children);
+	if (ourIndex == desiredIndex) {
+	    return;
+	}
+    }
+
+    /*
+     * Reconfigure the window.  This tricky because of two things:
+     * (a) Some window managers, like olvwm, insist that we raise
+     *     or lower the toplevel window itself, as opposed to its
+     *     decorative frame.  Attempts to raise or lower the frame
+     *     are ignored.
+     * (b) If the raise or lower is relative to a sibling, X will
+     *     generate an error unless we work with the frames (the
+     *     toplevels themselves aren't siblings).
+     * Fortunately, the procedure XReconfigureWMWindow is supposed
+     * to handle all of this stuff, so be careful to use it instead
+     * of XConfigureWindow.
+     */
+
+    serial = NextRequest(winPtr->display);
+    if (window != wrapperPtr->window) {
+	/*
+	 * We're going to have to wait for events on a window that
+	 * Tk doesn't own, so we have to tell X specially that we
+	 * want to get events on that window.  To make matters worse,
+	 * it's possible that the window doesn't exist anymore (e.g.
+	 * the toplevel could have been withdrawn) so ignore events
+	 * occurring during the request.
+	 */
+
+	handler = Tk_CreateErrorHandler(winPtr->display, -1, -1, -1,
+		(Tk_ErrorProc *) NULL, (ClientData) NULL);
+	XSelectInput(winPtr->display, window, StructureNotifyMask);
+	Tk_DeleteErrorHandler(handler);
+    }
+    XReconfigureWMWindow(winPtr->display, wrapperPtr->window,
+	    Tk_ScreenNumber((Tk_Window) winPtr), mask,  &changes);
+
+    /*
+     * Wait for the reconfiguration to complete.  If we don't wait, then
+     * the window may not restack for a while and the application might
+     * observe it before it has restacked.  Waiting for the reconfiguration
+     * is tricky if winPtr has been reparented, since the window getting
+     * the event isn't one that Tk owns.
+     */
+
+    if (window == wrapperPtr->window) {
+	WaitForConfigureNotify(winPtr, serial);
+    } else {
+	while (1) {
+	    if (WaitForEvent(winPtr->display, window, ConfigureNotify,
+		    &event) != TCL_OK) {
+		break;
+	    }
+	    diff = event.xconfigure.serial - serial;
+	    if (diff >= 0) {
+		break;
+	    }
+	}
+
+	/*
+	 * Ignore errors that occur when we are de-selecting events on
+	 * window, since it's possible that the window doesn't exist
+	 * anymore (see comment above previous call to XSelectInput).
+	 */
+
+	handler = Tk_CreateErrorHandler(winPtr->display, -1, -1, -1,
+		(Tk_ErrorProc *) NULL, (ClientData) NULL);
+	XSelectInput(winPtr->display, window, (long) 0);
+	Tk_DeleteErrorHandler(handler);
+    }
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkWmAddToColormapWindows --
+ *
+ *	This procedure is called to add a given window to the
+ *	WM_COLORMAP_WINDOWS property for its top-level, if it
+ *	isn't already there.  It is invoked by the Tk code that
+ *	creates a new colormap, in order to make sure that colormap
+ *	information is propagated to the window manager by default.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	WinPtr's window gets added to the WM_COLORMAP_WINDOWS
+ *	property of its nearest top-level ancestor, unless the
+ *	colormaps have been set explicitly with the
+ *	"wm colormapwindows" command.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+TkWmAddToColormapWindows(winPtr)
+    TkWindow *winPtr;		/* Window with a non-default colormap.
+				 * Should not be a top-level window. */
+{
+    TkWindow *wrapperPtr;
+    TkWindow *topPtr;
+    Window *oldPtr, *newPtr;
+    int count, i;
+
+    if (winPtr->window == None) {
+	return;
+    }
+
+    for (topPtr = winPtr->parentPtr; ; topPtr = topPtr->parentPtr) {
+	if (topPtr == NULL) {
+	    /*
+	     * Window is being deleted.  Skip the whole operation.
+	     */
+
+	    return;
+	}
+	if (topPtr->flags & TK_TOP_LEVEL) {
+	    break;
+	}
+    }
+    if (topPtr->wmInfoPtr->flags & WM_COLORMAPS_EXPLICIT) {
+	return;
+    }
+    if (topPtr->wmInfoPtr->wrapperPtr == NULL) {
+	CreateWrapper(topPtr->wmInfoPtr);
+    }
+    wrapperPtr = topPtr->wmInfoPtr->wrapperPtr;
+
+    /*
+     * Fetch the old value of the property.
+     */
+
+    if (XGetWMColormapWindows(topPtr->display, wrapperPtr->window,
+	    &oldPtr, &count) == 0) {
+	oldPtr = NULL;
+	count = 0;
+    }
+
+    /*
+     * Make sure that the window isn't already in the list.
+     */
+
+    for (i = 0; i < count; i++) {
+	if (oldPtr[i] == winPtr->window) {
+	    return;
+	}
+    }
+
+    /*
+     * Make a new bigger array and use it to reset the property.
+     * Automatically add the toplevel itself as the last element
+     * of the list.
+     */
+
+    newPtr = (Window *) ckalloc((unsigned) ((count+2)*sizeof(Window)));
+    for (i = 0; i < count; i++) {
+	newPtr[i] = oldPtr[i];
+    }
+    if (count == 0) {
+	count++;
+    }
+    newPtr[count-1] = winPtr->window;
+    newPtr[count] = topPtr->window;
+    XSetWMColormapWindows(topPtr->display, wrapperPtr->window, newPtr,
+	    count+1);
+    ckfree((char *) newPtr);
+    if (oldPtr != NULL) {
+	XFree((char *) oldPtr);
+    }
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkWmRemoveFromColormapWindows --
+ *
+ *	This procedure is called to remove a given window from the
+ *	WM_COLORMAP_WINDOWS property for its top-level.  It is invoked
+ *	when windows are deleted.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	WinPtr's window gets removed from the WM_COLORMAP_WINDOWS
+ *	property of its nearest top-level ancestor, unless the
+ *	top-level itself is being deleted too.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+TkWmRemoveFromColormapWindows(winPtr)
+    TkWindow *winPtr;		/* Window that may be present in
+				 * WM_COLORMAP_WINDOWS property for its
+				 * top-level.  Should not be a top-level
+				 * window. */
+{
+    TkWindow *wrapperPtr;
+    TkWindow *topPtr;
+    Window *oldPtr;
+    int count, i, j;
+
+    if (winPtr->window == None) {
+	return;
+    }
+
+    for (topPtr = winPtr->parentPtr; ; topPtr = topPtr->parentPtr) {
+	if (topPtr == NULL) {
+	    /*
+	     * Ancestors have been deleted, so skip the whole operation.
+	     * Seems like this can't ever happen?
+	     */
+
+	    return;
+	}
+	if (topPtr->flags & TK_TOP_LEVEL) {
+	    break;
+	}
+    }
+    if (topPtr->flags & TK_ALREADY_DEAD) {
+	/*
+	 * Top-level is being deleted, so there's no need to cleanup
+	 * the WM_COLORMAP_WINDOWS property.
+	 */
+
+	return;
+    }
+    if (topPtr->wmInfoPtr->wrapperPtr == NULL) {
+	CreateWrapper(topPtr->wmInfoPtr);
+    }
+    wrapperPtr = topPtr->wmInfoPtr->wrapperPtr;
+    if (wrapperPtr == NULL) {
+	return;
+    }
+
+    /*
+     * Fetch the old value of the property.
+     */
+
+    if (XGetWMColormapWindows(topPtr->display, wrapperPtr->window,
+	    &oldPtr, &count) == 0) {
+	return;
+    }
+
+    /*
+     * Find the window and slide the following ones down to cover
+     * it up.
+     */
+
+    for (i = 0; i < count; i++) {
+	if (oldPtr[i] == winPtr->window) {
+	    for (j = i ; j < count-1; j++) {
+		oldPtr[j] = oldPtr[j+1];
+	    }
+	    XSetWMColormapWindows(topPtr->display, wrapperPtr->window,
+		    oldPtr, count-1);
+	    break;
+	}
+    }
+    XFree((char *) oldPtr);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkGetPointerCoords --
+ *
+ *	Fetch the position of the mouse pointer.
+ *
+ * Results:
+ *	*xPtr and *yPtr are filled in with the (virtual) root coordinates
+ *	of the mouse pointer for tkwin's display.  If the pointer isn't
+ *	on tkwin's screen, then -1 values are returned for both
+ *	coordinates.  The argument tkwin must be a toplevel window.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+TkGetPointerCoords(tkwin, xPtr, yPtr)
+    Tk_Window tkwin;		/* Toplevel window that identifies screen
+				 * on which lookup is to be done. */
+    int *xPtr, *yPtr;		/* Store pointer coordinates here. */
+{
+    TkWindow *winPtr = (TkWindow *) tkwin;
+    WmInfo *wmPtr;
+    Window w, root, child;
+    int rootX, rootY;
+    unsigned int mask;
+
+    wmPtr = winPtr->wmInfoPtr;
+
+    w = wmPtr->vRoot;
+    if (w == None) {
+	w = RootWindow(winPtr->display, winPtr->screenNum);
+    }
+    if (XQueryPointer(winPtr->display, w, &root, &child, &rootX, &rootY,
+	    xPtr, yPtr, &mask) != True) {
+	*xPtr = -1;
+	*yPtr = -1;
+    }
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * GetMaxSize --
+ *
+ *	This procedure computes the current maxWidth and maxHeight
+ *	values for a window, taking into account the possibility
+ *	that they may be defaulted.
+ *
+ * Results:
+ *	The values at *maxWidthPtr and *maxHeightPtr are filled
+ *	in with the maximum allowable dimensions of wmPtr's window,
+ *	in grid units.  If no maximum has been specified for the
+ *	window, then this procedure computes the largest sizes that
+ *	will fit on the screen.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+GetMaxSize(wmPtr, maxWidthPtr, maxHeightPtr)
+    WmInfo *wmPtr;		/* Window manager information for the
+				 * window. */
+    int *maxWidthPtr;		/* Where to store the current maximum
+				 * width of the window. */
+    int *maxHeightPtr;		/* Where to store the current maximum
+				 * height of the window. */
+{
+    int tmp;
+
+    if (wmPtr->maxWidth > 0) {
+	*maxWidthPtr = wmPtr->maxWidth;
+    } else {
+	/*
+	 * Must compute a default width.  Fill up the display, leaving a
+	 * bit of extra space for the window manager's borders.
+	 */
+
+	tmp = DisplayWidth(wmPtr->winPtr->display, wmPtr->winPtr->screenNum)
+	    - 15;
+	if (wmPtr->gridWin != NULL) {
+	    /*
+	     * Gridding is turned on;  convert from pixels to grid units.
+	     */
+
+	    tmp = wmPtr->reqGridWidth
+		    + (tmp - wmPtr->winPtr->reqWidth)/wmPtr->widthInc;
+	}
+	*maxWidthPtr = tmp;
+    }
+    if (wmPtr->maxHeight > 0) {
+	*maxHeightPtr = wmPtr->maxHeight;
+    } else {
+	tmp = DisplayHeight(wmPtr->winPtr->display, wmPtr->winPtr->screenNum)
+	    - 30;
+	if (wmPtr->gridWin != NULL) {
+	    tmp = wmPtr->reqGridHeight
+		    + (tmp - wmPtr->winPtr->reqHeight)/wmPtr->heightInc;
+	}
+	*maxHeightPtr = tmp;
+    }
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkpMakeMenuWindow --
+ *
+ *	Configure the window to be either a pull-down (or pop-up)
+ *	menu, or as a toplevel (torn-off) menu or palette.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	Changes the style bit used to create a new Mac toplevel.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+TkpMakeMenuWindow(tkwin, transient)
+    Tk_Window tkwin;		/* New window. */
+    int transient;		/* 1 means menu is only posted briefly as
+				 * a popup or pulldown or cascade.  0 means
+				 * menu is always visible, e.g. as a torn-off
+				 * menu.  Determines whether save_under and
+				 * override_redirect should be set. */
+{
+    WmInfo *wmPtr;
+    XSetWindowAttributes atts;
+    TkWindow *wrapperPtr;
+
+    if (!Tk_IsTopLevel(tkwin)) {
+	return;
+    }
+    wmPtr = ((TkWindow *) tkwin)->wmInfoPtr;
+    if (wmPtr->wrapperPtr == NULL) {
+	CreateWrapper(wmPtr);
+    }
+    wrapperPtr = wmPtr->wrapperPtr;
+    if (transient) {
+	atts.override_redirect = True;
+	atts.save_under = True;
+    } else {
+	atts.override_redirect = False;
+	atts.save_under = False;
+    }
+
+    /*
+     * The override-redirect and save-under bits must be set on the
+     * wrapper window in order to have the desired effect.  However,
+     * also set the override-redirect bit on the window itself, so
+     * that the "wm overrideredirect" command will see it.
+     */
+
+    if ((atts.override_redirect != Tk_Attributes(wrapperPtr)->override_redirect)
+	    || (atts.save_under != Tk_Attributes(wrapperPtr)->save_under)) {
+	Tk_ChangeWindowAttributes((Tk_Window) wrapperPtr,
+		CWOverrideRedirect|CWSaveUnder, &atts);
+    }
+    if (atts.override_redirect != Tk_Attributes(tkwin)->override_redirect) {
+	Tk_ChangeWindowAttributes(tkwin, CWOverrideRedirect, &atts);
+    }
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * CreateWrapper --
+ *
+ *	This procedure is invoked to create the wrapper window for a
+ *	toplevel window.  It is called just before a toplevel is mapped
+ *	for the first time.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	The wrapper is created and the toplevel is reparented inside it.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+CreateWrapper(wmPtr)
+    WmInfo *wmPtr;		/* Window manager information for the
+				 * window. */
+{
+    TkWindow *winPtr, *wrapperPtr;
+    Window parent;
+    Tcl_HashEntry *hPtr;
+    int new;
+
+    winPtr = wmPtr->winPtr;
+    if (winPtr->window == None) {
+	Tk_MakeWindowExist((Tk_Window) winPtr);
+    }
+
+    /*
+     * The code below is copied from CreateTopLevelWindow,
+     * Tk_MakeWindowExist, and TkpMakeWindow; The idea is to create an
+     * "official" Tk window (so that we can get events on it), but to
+     * hide the window outside the official Tk hierarchy so that it
+     * isn't visible to the application.  See the comments for the other
+     * procedures if you have questions about this code.
+     */
+
+    wmPtr->wrapperPtr = wrapperPtr = TkAllocWindow(winPtr->dispPtr,
+	    Tk_ScreenNumber((Tk_Window) winPtr), winPtr);
+    wrapperPtr->dirtyAtts |= CWBorderPixel;
+
+    /*
+     * Tk doesn't normally select for StructureNotifyMask events because
+     * the events are synthesized internally.  However, for wrapper
+     * windows we need to know when the window manager modifies the
+     * window configuration.  We also need to select on focus change
+     * events; these are the only windows for which we care about focus
+     * changes.
+     */
+
+    wrapperPtr->flags |= TK_WRAPPER;
+    wrapperPtr->atts.event_mask |= StructureNotifyMask|FocusChangeMask;
+    wrapperPtr->atts.override_redirect = winPtr->atts.override_redirect;
+    if (winPtr->flags & TK_EMBEDDED) {
+	parent = TkUnixContainerId(winPtr);
+    } else {
+	parent = XRootWindow(wrapperPtr->display, wrapperPtr->screenNum);
+    }
+    wrapperPtr->window = XCreateWindow(wrapperPtr->display,
+	    parent, wrapperPtr->changes.x, wrapperPtr->changes.y,
+	    (unsigned) wrapperPtr->changes.width,
+	    (unsigned) wrapperPtr->changes.height,
+	    (unsigned) wrapperPtr->changes.border_width, wrapperPtr->depth,
+	    InputOutput, wrapperPtr->visual,
+	    wrapperPtr->dirtyAtts|CWOverrideRedirect, &wrapperPtr->atts);
+    hPtr = Tcl_CreateHashEntry(&wrapperPtr->dispPtr->winTable,
+	    (char *) wrapperPtr->window, &new);
+    Tcl_SetHashValue(hPtr, wrapperPtr);
+    wrapperPtr->mainPtr = winPtr->mainPtr;
+    wrapperPtr->mainPtr->refCount++;
+    wrapperPtr->dirtyAtts = 0;
+    wrapperPtr->dirtyChanges = 0;
+#ifdef TK_USE_INPUT_METHODS
+    wrapperPtr->inputContext = NULL;
+#endif /* TK_USE_INPUT_METHODS */
+    wrapperPtr->wmInfoPtr = wmPtr;
+
+    /*
+     * Reparent the toplevel window inside the wrapper.
+     */
+
+    XReparentWindow(wrapperPtr->display, winPtr->window, wrapperPtr->window,
+	    0, 0);
+
+    /*
+     * Tk must monitor structure events for wrapper windows in order
+     * to detect changes made by window managers such as resizing,
+     * mapping, unmapping, etc..
+     */
+
+    Tk_CreateEventHandler((Tk_Window) wmPtr->wrapperPtr, StructureNotifyMask,
+	    WrapperEventProc, (ClientData) wmPtr);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkWmFocusToplevel --
+ *
+ *	This is a utility procedure invoked by focus-management code.
+ *	The focus code responds to externally generated focus-related
+ *	events on wrapper windows but ignores those events for any other
+ *	windows.  This procedure determines whether a given window is a
+ *	wrapper window and, if so, returns the toplevel window
+ *	corresponding to the wrapper.
+ *
+ * Results:
+ *	If winPtr is a wrapper window, returns a pointer to the
+ *	corresponding toplevel window; otherwise returns NULL.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+TkWindow *
+TkWmFocusToplevel(winPtr)
+    TkWindow *winPtr;		/* Window that received a focus-related
+				 * event. */
+{
+    if (!(winPtr->flags & TK_WRAPPER)) {
+	return NULL;
+    }
+    return winPtr->wmInfoPtr->winPtr;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkUnixSetMenubar --
+ *
+ *	This procedure is invoked by menu management code to specify the
+ *	window to use as a menubar for a given toplevel window.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	The window given by menubar will be mapped and positioned inside
+ *	the wrapper for tkwin and above tkwin.  Menubar will
+ *	automatically be resized to maintain the height specified by
+ *	TkUnixSetMenuHeight the same width as tkwin.  Any previous
+ *	menubar specified for tkwin will be unmapped and ignored from
+ *	now on.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+TkUnixSetMenubar(tkwin, menubar)
+    Tk_Window tkwin;		/* Token for toplevel window. */
+    Tk_Window menubar;		/* Token for window that is to serve as
+				 * menubar for tkwin.  Must not be a
+				 * toplevel window.  If NULL, any
+				 * existing menubar is canceled and the
+				 * menu height is reset to 0. */
+{
+    WmInfo *wmPtr = ((TkWindow *) tkwin)->wmInfoPtr;
+    Tk_Window parent;
+    TkWindow *menubarPtr = (TkWindow *) menubar;
+
+    if (wmPtr->menubar != NULL) {
+	/*
+	 * There's already a menubar for this toplevel.  If it isn't the
+	 * same as the new menubar, unmap it so that it is out of the
+	 * way, and reparent it back to its original parent.
+	 */
+
+	if (wmPtr->menubar == menubar) {
+	    return;
+	}
+	((TkWindow *) wmPtr->menubar)->wmInfoPtr = NULL;
+	((TkWindow *) wmPtr->menubar)->flags &= ~TK_REPARENTED;
+	Tk_UnmapWindow(wmPtr->menubar);
+	parent = Tk_Parent(wmPtr->menubar);
+	if (parent != NULL) {
+	    Tk_MakeWindowExist(parent);
+	    XReparentWindow(Tk_Display(wmPtr->menubar),
+		    Tk_WindowId(wmPtr->menubar), Tk_WindowId(parent), 0, 0);
+	}
+	Tk_DeleteEventHandler(wmPtr->menubar, StructureNotifyMask,
+		MenubarDestroyProc, (ClientData) wmPtr->menubar);
+	Tk_ManageGeometry(wmPtr->menubar, NULL, (ClientData) NULL);
+    }
+
+    wmPtr->menubar = menubar;
+    if (menubar == NULL) {
+	wmPtr->menuHeight = 0;
+    } else {
+	if ((menubarPtr->flags & TK_TOP_LEVEL)
+	     || (Tk_Screen(menubar) != Tk_Screen(tkwin))) {
+	    panic("TkUnixSetMenubar got bad menubar");
+	}
+	wmPtr->menuHeight = Tk_ReqHeight(menubar);
+	if (wmPtr->menuHeight == 0) {
+	    wmPtr->menuHeight = 1;
+	}
+	Tk_MakeWindowExist(tkwin);
+	Tk_MakeWindowExist(menubar);
+	if (wmPtr->wrapperPtr == NULL) {
+	    CreateWrapper(wmPtr);
+	}
+	XReparentWindow(Tk_Display(menubar), Tk_WindowId(menubar),
+		wmPtr->wrapperPtr->window, 0, 0);
+	menubarPtr->wmInfoPtr = wmPtr;
+	Tk_MoveResizeWindow(menubar, 0, 0, Tk_Width(tkwin), wmPtr->menuHeight);
+	Tk_MapWindow(menubar);
+	Tk_CreateEventHandler(menubar, StructureNotifyMask, MenubarDestroyProc,
+		(ClientData) menubar);
+	Tk_ManageGeometry(menubar, &menubarMgrType, (ClientData) wmPtr);
+	menubarPtr->flags |= TK_REPARENTED;
+    }
+    wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
+    if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) {
+	Tcl_DoWhenIdle(UpdateGeometryInfo, (ClientData) tkwin);
+	wmPtr->flags |= WM_UPDATE_PENDING;
+    }
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * MenubarDestroyProc --
+ *
+ *	This procedure is invoked by the event dispatcher whenever a
+ *	menubar window is destroyed (it's also invoked for a few other
+ *	kinds of events, but we ignore those).
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	The association between the window and its toplevel is broken,
+ *	so that the window is no longer considered to be a menubar.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+MenubarDestroyProc(clientData, eventPtr)
+    ClientData clientData;		/* TkWindow pointer for menubar. */
+    XEvent *eventPtr;			/* Describes what just happened. */
+{
+    WmInfo *wmPtr;
+
+    if (eventPtr->type != DestroyNotify) {
+	return;
+    }
+    wmPtr = ((TkWindow *) clientData)->wmInfoPtr;
+    wmPtr->menubar = NULL;
+    wmPtr->menuHeight = 0;
+    wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
+    if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) {
+	Tcl_DoWhenIdle(UpdateGeometryInfo, (ClientData) wmPtr->winPtr);
+	wmPtr->flags |= WM_UPDATE_PENDING;
+    }
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * MenubarReqProc --
+ *
+ *	This procedure is invoked by the Tk geometry management code
+ *	whenever a menubar calls Tk_GeometryRequest to request a new
+ *	size.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+MenubarReqProc(clientData, tkwin)
+    ClientData clientData;	/* Pointer to the window manager
+				 * information for tkwin's toplevel. */
+    Tk_Window tkwin;		/* Handle for menubar window. */
+{
+    WmInfo *wmPtr = (WmInfo *) clientData;
+
+    wmPtr->menuHeight = Tk_ReqHeight(tkwin);
+    if (wmPtr->menuHeight <= 0) {
+	wmPtr->menuHeight = 1;
+    }
+    wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
+    if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) {
+	Tcl_DoWhenIdle(UpdateGeometryInfo, (ClientData) wmPtr->winPtr);
+	wmPtr->flags |= WM_UPDATE_PENDING;
+    }
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkpGetWrapperWindow --
+ *
+ *	Given a toplevel window return the hidden wrapper window for
+ *	the toplevel window if available.
+ *
+ * Results:
+ *	The wrapper window.  NULL is we were not passed a toplevel
+ *	window or the wrapper has yet to be created.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+TkWindow *
+TkpGetWrapperWindow(winPtr)
+    TkWindow *winPtr;		/* A toplevel window pointer. */
+{
+    register WmInfo *wmPtr = winPtr->wmInfoPtr;
+
+    if ((winPtr == NULL) || (wmPtr == NULL)) {
+	return NULL;
+    }
+
+    return wmPtr->wrapperPtr;
+}