From 7a16039c2d3da2c4a80ae9fa11a40b274329b317 Mon Sep 17 00:00:00 2001
From: Benjamin Otte <otte@redhat.com>
Date: Sun, 19 Jul 2015 04:37:47 +0200
Subject: [PATCH] window: Allow setting type hint on mapped windows

---
 gtk/gtkwindow.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/gtk/gtkwindow.c b/gtk/gtkwindow.c
index 6889455322..9bb1f90c89 100644
--- a/gtk/gtkwindow.c
+++ b/gtk/gtkwindow.c
@@ -3503,13 +3503,15 @@ gtk_window_set_type_hint (GtkWindow           *window,
   GtkWindowPrivate *priv;
 
   g_return_if_fail (GTK_IS_WINDOW (window));
-  g_return_if_fail (!gtk_widget_get_mapped (GTK_WIDGET (window)));
 
   priv = window->priv;
 
   priv->type_hint = hint;
 
-  priv->reset_type_hint = TRUE;
+  if (gtk_widget_get_mapped (GTK_WIDGET (window)))
+    gdk_window_set_type_hint (gtk_widget_get_window (GTK_WIDGET (window)), hint);
+  else
+    priv->reset_type_hint = TRUE;
 
   update_window_buttons (window);
 }