From 9d03cf946c17b86b35d57f7f410901a24fbe7f80 Mon Sep 17 00:00:00 2001
From: Julian Smart <julian@anthemion.co.uk>
Date: Fri, 25 Sep 2009 10:11:06 +0000
Subject: [PATCH] Applied #10007: SetWindowGroupParent hangs in Mac Carbon
 dialog.cpp

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@62117 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 src/mac/carbon/dialog.cpp | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/mac/carbon/dialog.cpp b/src/mac/carbon/dialog.cpp
index 114be10e4e..8a61ceba87 100644
--- a/src/mac/carbon/dialog.cpp
+++ b/src/mac/carbon/dialog.cpp
@@ -153,9 +153,12 @@ void wxDialog::DoShowModal()
     if ( GetParent() == NULL )
     {
         windowGroup = GetWindowGroup(windowRef) ;
-        formerParentGroup = GetWindowGroupParent( windowGroup );
-        SetWindowGroupParent( windowGroup, GetWindowGroupOfClass( kMovableModalWindowClass ) );
-        resetGroupParent = true;
+        if ( windowGroup != GetWindowGroupOfClass( kMovableModalWindowClass ) )
+        {
+            formerParentGroup = GetWindowGroupParent( windowGroup );
+            SetWindowGroupParent( windowGroup, GetWindowGroupOfClass( kMovableModalWindowClass ) );
+            resetGroupParent = true;
+        }
     }
     BeginAppModalStateForWindow(windowRef) ;