X-Git-Url: http://git.openbox.org/?p=dana%2Fdcompmgr.git;a=blobdiff_plain;f=dcompmgr.c;h=542f1adbe3c1588c5eda4182b7951e34895a10af;hp=1c4a5f94b716a5424eba8d1050814fd10ce9a4ea;hb=7ec77b43f6a7216eb99aab26bac720b51f2c195f;hpb=3ccb99ec7abb0c6f86edbc18db224351e7b8c130

diff --git a/dcompmgr.c b/dcompmgr.c
index 1c4a5f9..542f1ad 100644
--- a/dcompmgr.c
+++ b/dcompmgr.c
@@ -91,6 +91,12 @@ main(int argc, char **argv)
         display_unref(dpy);
         return 1;
     }
+    if (dpy->composite.major_version <= 0 && dpy->composite.minor_version < 3)
+    {
+        printf(_("composite extension does not support the overlay window"));
+        display_unref(dpy);
+        return 1;
+    }
 
     nscreens = all_screens(dpy, &screens);
     if (nscreens < 1) {