* gtkutil.c (xg_update_scrollbar_pos): Call x_sync so that the

  GTK main loop is entered in xterm.c, thus doing the redraw.

1 files changed, 7 insertions, 2 deletions

diff --git a/src/gtkutil.c b/src/gtkutil.c
index 6dcba3036c0..8bd83e40043 100644
--- a/src/gtkutil.c
+++ b/src/gtkutil.c
@@ -2999,9 +2999,14 @@ xg_update_scrollbar_pos (f, scrollbar_id, top, left, width, height)
       GtkWidget *wparent = gtk_widget_get_parent (wscroll);
 
       /* Move and resize to new values.  */
-      gtk_widget_set_size_request (wscroll, width, height);
       gtk_fixed_move (GTK_FIXED (wfixed), wparent, left, top);
-
+      gtk_widget_set_size_request (wscroll, width, height);
+      gtk_widget_queue_draw (wparent);
+      gdk_window_process_all_updates ();
+      /* GTK does not redraw until the main loop is entered again, but
+         if there are no X events pending we will not enter it.  So we sync
+         here to get some events.  */
+      x_sync (f);
       SET_FRAME_GARBAGED (f);
       cancel_mouse_face (f);
     }