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diff --git a/X11/Xmu/DisplayQue.h b/X11/Xmu/DisplayQue.h
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+/*
+
+Copyright 1994, 1998  The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of The Open Group shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from The Open Group.
+
+*/
+
+#ifndef _XMU_DISPLAYQUE_H_
+#define _XMU_DISPLAYQUE_H_
+
+#include <X11/Xmu/CloseHook.h>
+#include <X11/Xfuncproto.h>
+
+/*
+ *			      Public Entry Points
+ * 
+ * 
+ * XmuDisplayQueue *XmuDQCreate (closefunc, freefunc, data)
+ *     XmuCloseDisplayQueueProc closefunc;
+ *     XmuFreeDisplayQueueProc freefunc;
+ *     XPointer data;
+ * 
+ *         Creates and returns a queue into which displays may be placed.  When
+ *         the display is closed, the closefunc (if non-NULL) is upcalled with
+ *         as follows:
+ *
+ *                 (*closefunc) (queue, entry)
+ *
+ *         The freeproc, if non-NULL, is called whenever the last display is
+ *         closed, notifying the creator that display queue may be released
+ *         using XmuDQDestroy.
+ *
+ *
+ * Bool XmuDQDestroy (q, docallbacks)
+ *     XmuDisplayQueue *q;
+ *     Bool docallbacks;
+ * 
+ *         Releases all memory for the indicated display queue.  If docallbacks
+ *         is true, then the closefunc (if non-NULL) is called for each 
+ *         display.
+ * 
+ * 
+ * XmuDisplayQueueEntry *XmuDQLookupDisplay (q, dpy)
+ *     XmuDisplayQueue *q;
+ *     Display *dpy;
+ *
+ *         Returns the queue entry for the specified display or NULL if the
+ *         display is not in the queue.
+ *
+ * 
+ * XmuDisplayQueueEntry *XmuDQAddDisplay (q, dpy, data)
+ *     XmuDisplayQueue *q;
+ *     Display *dpy;
+ *     XPointer data;
+ *
+ *         Adds the indicated display to the end of the queue or NULL if it
+ *         is unable to allocate memory.  The data field may be used by the
+ *         caller to attach arbitrary data to this display in this queue.  The
+ *         caller should use XmuDQLookupDisplay to make sure that the display
+ *         hasn't already been added.
+ * 
+ * 
+ * Bool XmuDQRemoveDisplay (q, dpy)
+ *     XmuDisplayQueue *q;
+ *     Display *dpy;
+ *
+ *         Removes the specified display from the given queue.  If the 
+ *         indicated display is not found on this queue, False is returned,
+ *         otherwise True is returned.
+ */
+
+typedef struct _XmuDisplayQueue XmuDisplayQueue;
+typedef struct _XmuDisplayQueueEntry XmuDisplayQueueEntry;
+
+typedef int (*XmuCloseDisplayQueueProc)(XmuDisplayQueue *queue,
+					XmuDisplayQueueEntry *entry);
+
+typedef int (*XmuFreeDisplayQueueProc)(XmuDisplayQueue *queue);
+
+struct _XmuDisplayQueueEntry {
+    struct _XmuDisplayQueueEntry *prev, *next;
+    Display *display;
+    CloseHook closehook;
+    XPointer data;
+};
+
+struct _XmuDisplayQueue {
+    int nentries;
+    XmuDisplayQueueEntry *head, *tail;
+    XmuCloseDisplayQueueProc closefunc;
+    XmuFreeDisplayQueueProc freefunc;
+    XPointer data;
+};
+
+_XFUNCPROTOBEGIN
+
+XmuDisplayQueue *XmuDQCreate
+(
+ XmuCloseDisplayQueueProc	closefunc,
+ XmuFreeDisplayQueueProc	freefunc,
+ XPointer			data
+ );
+
+Bool XmuDQDestroy
+(
+ XmuDisplayQueue		*q,
+ Bool				docallbacks
+ );
+
+XmuDisplayQueueEntry *XmuDQLookupDisplay
+(
+ XmuDisplayQueue		*q,
+ Display			*dpy
+ );
+
+XmuDisplayQueueEntry *XmuDQAddDisplay
+(
+ XmuDisplayQueue		*q,
+ Display			*dpy,
+ XPointer			data
+ );
+
+Bool XmuDQRemoveDisplay
+(
+ XmuDisplayQueue		*q,
+ Display			*dpy
+ );
+
+_XFUNCPROTOEND
+
+#define XmuDQNDisplays(q) ((q)->nentries)
+
+#endif /* _XMU_DISPLAYQUE_H_ */