76 lines
1.4 KiB
C++
76 lines
1.4 KiB
C++
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/*++
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Copyright (c) 2000 Microsoft Corporation
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Module Name:
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BigGameHunter3.cpp
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Abstract:
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BGH calls GetWindowLong() to get a window procedure and subsequently
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does not call CallWindowProc() with the value returned from
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GetWindowLong(). This patch calls GetWindowLongW( ), which returns the
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window procedure.
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Notes:
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This is an app specific shim. Making it general will require generating
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a stub function that just uses CallWindowProc for every returned handle.
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Too much work, not enough gain.
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History:
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03/16/2000 prashkud Created
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--*/
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#include "precomp.h"
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IMPLEMENT_SHIM_BEGIN(BigGameHunter3)
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#include "ShimHookMacro.h"
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APIHOOK_ENUM_BEGIN
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APIHOOK_ENUM_ENTRY(GetWindowLongA)
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APIHOOK_ENUM_END
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/*++
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This function intercepts GetWindowLong( ), checks the nIndex for GWL_WNDPROC
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and if it is,calls GetWindowLongW( ). Otherwise, it calls GetWindowLongA( )
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--*/
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LONG
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APIHOOK(GetWindowLongA)(
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HWND hwnd,
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int nIndex )
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{
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LONG lRet;
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// Apply the modification only if the App wants a WindowProc.
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if (nIndex == GWL_WNDPROC)
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{
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lRet = GetWindowLongW(hwnd, nIndex);
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}
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else
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{
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lRet = ORIGINAL_API(GetWindowLongA)(hwnd, nIndex);
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}
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return lRet;
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}
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/*++
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Register hooked functions
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--*/
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HOOK_BEGIN
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APIHOOK_ENTRY(USER32.DLL, GetWindowLongA)
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HOOK_END
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IMPLEMENT_SHIM_END
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