From fb4b0165b22fef2c47e97e90ef5257ca8eadc804 Mon Sep 17 00:00:00 2001
From: Michael Wetherell <mike.wetherell@ntlworld.com>
Date: Tue, 28 Jul 2009 17:48:37 +0000
Subject: [PATCH] Fix SetToolTip(NULL) to unset the tooltip.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@61549 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 src/gtk/window.cpp | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/gtk/window.cpp b/src/gtk/window.cpp
index 99b0125..a397575 100644
--- a/src/gtk/window.cpp
+++ b/src/gtk/window.cpp
@@ -3763,7 +3763,21 @@ void wxWindowGTK::DoSetToolTip( wxToolTip *tip )
     wxWindowBase::DoSetToolTip(tip);
 
     if (m_tooltip)
+    {
         m_tooltip->GTKApply( (wxWindow *)this );
+    }
+    else
+    {
+        GtkWidget *w = GetConnectWidget();
+        wxToolTip::GTKApply(w, NULL);
+#if GTK_CHECK_VERSION(2, 12, 0)
+        // Just applying NULL doesn't work on 2.12.0, so also use
+        // gtk_widget_set_has_tooltip. It is part of the new GtkTooltip API
+        // but seems also to work with the old GtkTooltips.
+        if (gtk_check_version(2, 12, 0) == NULL)
+            gtk_widget_set_has_tooltip(w, FALSE);
+#endif
+    }
 }
 
 void wxWindowGTK::GTKApplyToolTip( GtkTooltips *tips, const gchar *tip )
-- 
2.7.4