106 lines
2.0 KiB
C++
106 lines
2.0 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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RiskII.cpp
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Abstract:
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This shim hooks LoadImageA to intercept the loading of two
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cursors and returns copies of the system cursors instead of
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the ones RiskII was trying to get. RiskII's cursors were
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being rendered by software and it caused them to flicker since
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RiskII locks the primary surface. The system cursors are
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hardware cursors and don't flicker.
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History:
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08/03/2000 t-adams Created
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--*/
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#include "precomp.h"
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#include <mmsystem.h>
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IMPLEMENT_SHIM_BEGIN(RiskII)
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#include "ShimHookMacro.h"
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APIHOOK_ENUM_BEGIN
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APIHOOK_ENUM_ENTRY(LoadImageA)
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APIHOOK_ENUM_END
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/*++
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Abstract:
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Intercept the load of two cursors, and replace with the appropriate
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similar-looking system cursors.
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History:
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08/03/2000 t-adams Created
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--*/
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HANDLE
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APIHOOK(LoadImageA)(
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HINSTANCE hinst,
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LPCSTR lpszName,
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UINT uType,
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int cxDesired,
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int cyDesired,
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UINT fuLoad)
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{
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HANDLE hRet = INVALID_HANDLE_VALUE;
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CSTRING_TRY
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{
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CString csName(lpszName);
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if (csName.CompareNoCase(L"Gfx\\Arrow_m.cur") == 0 )
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{
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HCURSOR hCur = LoadCursor(NULL, IDC_ARROW);
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if (hCur)
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{
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hRet = CopyCursor(hCur);
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}
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}
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else if (csName.CompareNoCase(L"Gfx\\Busy_m.cur") == 0 )
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{
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HCURSOR hCur = LoadCursor(NULL, IDC_WAIT);
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if (hCur)
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{
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hRet = CopyCursor(hCur);
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}
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}
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}
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CSTRING_CATCH
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{
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// Do Nothing
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}
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if (hRet == INVALID_HANDLE_VALUE)
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{
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hRet = ORIGINAL_API(LoadImageA)(hinst, lpszName, uType, cxDesired, cyDesired, fuLoad);
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}
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return hRet;
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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, LoadImageA)
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HOOK_END
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IMPLEMENT_SHIM_END
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