+
+ if (dpyinfo->root_window == f->output_data.x->parent_desc)
+ {
+ /* Try _NET_FRAME_EXTENTS if our parent is the root window. */
+ rc = XGetWindowProperty (dpy, win, dpyinfo->Xatom_net_frame_extents,
+ 0, max_len, False, target_type,
+ &actual_type, &actual_format, &actual_size,
+ &bytes_remaining, &tmp_data);
+
+ if (rc == Success && actual_type == target_type && !x_had_errors_p (dpy)
+ && actual_size == 4 && actual_format == 32)
+ {
+ int ign;
+ Window rootw;
+
+ XGetGeometry (FRAME_X_DISPLAY (f), win,
+ &rootw, &real_x, &real_y, &ign, &ign, &ign, &ign);
+ long *fe = (long *)tmp_data;
+
+ outer_x = -fe[0];
+ outer_y = -fe[2];
+ real_x -= fe[0];
+ real_y -= fe[2];
+ }
+ }
+
+ if (tmp_data) XFree (tmp_data);
+