get the offscreen pixmaps for all windows (including their frames)

[chaz/openbox] / openbox / extensions.c

diff --git a/openbox/extensions.c b/openbox/extensions.c
index b7d8e73aa9ea53f148e36e1c81f29890254067c2..2fdc686316321b278b188ee411a7104e5e8b957d 100644 (file)
--- a/openbox/extensions.c
+++ b/openbox/extensions.c
@@ -33,6 +33,8 @@ gboolean extensions_randr     = FALSE;
 gint     extensions_randr_event_basep;
 gboolean extensions_sync      = FALSE;
 gint     extensions_sync_event_basep;
+gboolean extensions_comp      = FALSE;
+gint     extensions_comp_event_basep;
 
 void extensions_query_all()
 {
@@ -80,6 +82,22 @@ void extensions_query_all()
         ob_debug("X Sync extension is not present on the server or is an "
                  "incompatible version\n");
 #endif
+
+#ifdef USE_XCOMPOSITE
+    if (XCompositeQueryExtension(ob_display, &extensions_comp_event_basep,
+                                 &junk))
+    {
+        gint major = 0, minor = 2;
+        XCompositeQueryVersion(ob_display, &major, &minor);
+        /* Version 0.2 is the first version to have the
+           XCompositeNameWindowPixmap() request. */
+        if (major > 0 || minor >= 2)
+            extensions_comp = TRUE;
+    }
+    if (!extensions_comp)
+        ob_debug("X Composite extension is not present on the server or is an "
+                 "incompatible version\n");
+#endif
 }
 
 void extensions_xinerama_screens(Rect **xin_areas, guint *nxin)
@@ -128,3 +146,10 @@ void extensions_xinerama_screens(Rect **xin_areas, guint *nxin)
     }
     RECT_SET((*xin_areas)[*nxin], l, t, r - l + 1, b - t + 1);
 }
+
+#ifdef USE_XCOMPOSITE
+Picture extensions_create_composite_picture(Window win, Visual *vis,
+                                            gboolean *has_alpha)
+{
+}
+#endif