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Implemented NtUserGetAncestor with GA_ROOT flag, stops winhello from crashing when clicking on the title bar.

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svn path=/trunk/; revision=4828
This commit is contained in:
Jurgen van Gael 2003-06-03 15:43:57 +00:00
parent 1018ad9087
commit 7e41bced72
1 changed files with 24 additions and 1 deletions
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25
reactos/subsys/win32k/ntuser/window.c
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@ -16,7 +16,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* $Id: window.c,v 1.51 2003/05/31 08:51:58 gvg Exp $
/* $Id: window.c,v 1.52 2003/06/03 15:43:57 jvangael Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
@ -94,6 +94,29 @@ NtUserGetAncestor(HWND hWnd, UINT Flags)
return(hParent);
}
else if (Flags & GA_ROOT)
{
PWINDOW_OBJECT Window;
PWINDOW_OBJECT pChainEnumerator;
HWND hRoot;
Window = W32kGetWindowObject(hWnd);
if(Window == NULL)
{
return(NULL);
}
pChainEnumerator = Window;
while(pChainEnumerator->Parent != NULL)
{
pChainEnumerator = pChainEnumerator->Parent;
}
hRoot = pChainEnumerator->Self;
W32kReleaseWindowObject(Window);
return(hRoot);
}
else
{
UNIMPLEMENTED;