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You can ask for e.g. GWL_STYLE for the desktop window,
but GWL_WNDPROC is off-limits for all windows if your process didn't create it svn path=/trunk/; revision=14709
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@ -16,8 +16,7 @@
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* along with this program; if not, write to the Free Software
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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*/
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/* $Id$
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/*
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*
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* COPYRIGHT: See COPYING in the top level directory
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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* PROJECT: ReactOS kernel
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* PURPOSE: Windows
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* PURPOSE: Windows
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@ -26,7 +25,9 @@
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* REVISION HISTORY:
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* REVISION HISTORY:
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* 06-06-2001 CSH Created
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* 06-06-2001 CSH Created
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*/
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*/
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/* INCLUDES ******************************************************************/
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/* INCLUDES ******************************************************************/
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#include <w32k.h>
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#include <w32k.h>
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static WndProcHandle *WndProcHandlesArray = 0;
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static WndProcHandle *WndProcHandlesArray = 0;
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@ -3204,12 +3205,12 @@ NtUserGetWindowLong(HWND hWnd, DWORD Index, BOOL Ansi)
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}
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}
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/*
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/*
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* Only allow CSRSS to mess with the desktop window
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* WndProc is only available to the owner process
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*/
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*/
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if (hWnd == IntGetDesktopWindow()
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if (GWL_WNDPROC == Index
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&& WindowObject->OwnerThread->ThreadsProcess != PsGetCurrentProcess())
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&& WindowObject->OwnerThread->ThreadsProcess != PsGetCurrentProcess())
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{
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{
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SetLastWin32Error(STATUS_ACCESS_DENIED);
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SetLastWin32Error(ERROR_ACCESS_DENIED);
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return 0;
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return 0;
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}
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}
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