Add wacky hack suggested by Keith Packard to get X properties

2002-10-06  Havoc Pennington  <hp@pobox.com>

	* src/async-getprop.c: Add wacky hack suggested by Keith Packard
	to get X properties asynchronously. Not actually used by metacity
	yet, but thinking about it.

src/async-getprop.h

@@ -0,0 +1,61 @@
+/* Asynchronous X property getting hack */
+
+/*
+ * Copyright (C) 2002 Havoc Pennington
+ * 
+ * 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 ASYNC_GETPROP_H
+#define ASYNC_GETPROP_H
+
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+
+typedef struct _AgGetPropertyTask AgGetPropertyTask;
+
+AgGetPropertyTask* ag_task_create             (Display            *display,
+                                               Window              window,
+                                               Atom                property,
+                                               long                offset,
+                                               long                length,
+                                               Bool                delete,
+                                               Atom                req_type);
+Status             ag_task_get_reply_and_free (AgGetPropertyTask  *task,
+                                               Atom               *actual_type,
+                                               int                *actual_format,
+                                               unsigned long      *nitems,
+                                               unsigned long      *bytesafter,
+                                               unsigned char     **prop);
+
+Bool     ag_task_have_reply   (AgGetPropertyTask *task);
+Atom     ag_task_get_property (AgGetPropertyTask *task);
+Window   ag_task_get_window   (AgGetPropertyTask *task);
+Display* ag_task_get_display  (AgGetPropertyTask *task);
+
+AgGetPropertyTask* ag_get_next_completed_task (Display *display);
+
+#endif
+
+
+
+