From e12ab6bc99fe72af4cb791e3540bcd6f9a575a72 Mon Sep 17 00:00:00 2001
From: cxl <cxl@f0d560ea-af0d-0410-9eb7-867de7ffcac7>
Date: Mon, 6 Jan 2014 15:20:20 +0000
Subject: [PATCH] CtrlCtrl: GtkWnd IsCompositedGui implementation (thanks
 Klugier)

git-svn-id: svn://ultimatepp.org/upp/trunk@6720 f0d560ea-af0d-0410-9eb7-867de7ffcac7
---
 uppsrc/CtrlCore/GtkWnd.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/uppsrc/CtrlCore/GtkWnd.cpp b/uppsrc/CtrlCore/GtkWnd.cpp
index a3d1a2d65..24d1524a6 100644
--- a/uppsrc/CtrlCore/GtkWnd.cpp
+++ b/uppsrc/CtrlCore/GtkWnd.cpp
@@ -56,7 +56,9 @@ bool Ctrl::IsAlphaSupported()
 
 bool Ctrl::IsCompositedGui()
 {
-	return false;
+    GuiLock __;
+    static bool b = gdk_display_supports_composite(gdk_display_get_default());
+    return b;
 }
 
 Vector<Ctrl *> Ctrl::GetTopCtrls()