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158 lines
3.7 KiB
158 lines
3.7 KiB
/*++
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Copyright (c) 2002 Microsoft Corporation
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Module Name:
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EmulateGetUIEffects.cpp
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Abstract:
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Force SPI_GETUIEFFECTS to FALSE if this is a remote (TS) session
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History:
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08/07/2002 linstev Created
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08/22/2002 robkenny Converted to a general shim
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--*/
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#include "precomp.h"
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IMPLEMENT_SHIM_BEGIN(EmulateGetUIEffects)
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#include "ShimHookMacro.h"
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APIHOOK_ENUM_BEGIN
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APIHOOK_ENUM_ENTRY(SystemParametersInfoA)
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APIHOOK_ENUM_ENTRY(SystemParametersInfoW)
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APIHOOK_ENUM_END
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BOOL bGetUIEffects = FALSE;
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/*++
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If the caller was after SPI_GETUIEFFECTS and this is a TS session
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force the value to the value specified on the command line.
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--*/
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VOID CorrectGetUIEffects(
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UINT uiAction, // system parameter to retrieve or set
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UINT uiParam, // depends on action to be taken
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PVOID pvParam, // depends on action to be taken
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UINT fWinIni // user profile update option
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)
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{
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if (pvParam && (uiAction == SPI_GETUIEFFECTS))
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{
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if (GetSystemMetrics(SM_REMOTESESSION))
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{
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BOOL * bUiEffect = (BOOL *)pvParam;
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// Only spew the message if we are actually changing the value
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if (*bUiEffect != bGetUIEffects)
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{
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LOGN(eDbgLevelWarning, "SystemParametersInfoA: Forcing SPI_GETUIEFFECTS to %s", bGetUIEffects ? "TRUE" : "FALSE");
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*bUiEffect = bGetUIEffects;
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}
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}
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}
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}
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/*++
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Force SPI_GETUIEFFECTS to bGetUIEffects (defaults to FALSE) if this is a remote (TS) session
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--*/
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BOOL
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APIHOOK(SystemParametersInfoA)(
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UINT uiAction, // system parameter to retrieve or set
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UINT uiParam, // depends on action to be taken
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PVOID pvParam, // depends on action to be taken
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UINT fWinIni // user profile update option
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)
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{
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BOOL bRet = ORIGINAL_API(SystemParametersInfoA)(uiAction, uiParam, pvParam, fWinIni);
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if (bRet)
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{
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CorrectGetUIEffects(uiAction, uiParam, pvParam, fWinIni);
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}
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return bRet;
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}
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BOOL
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APIHOOK(SystemParametersInfoW)(
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UINT uiAction, // system parameter to retrieve or set
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UINT uiParam, // depends on action to be taken
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PVOID pvParam, // depends on action to be taken
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UINT fWinIni // user profile update option
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)
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{
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BOOL bRet = ORIGINAL_API(SystemParametersInfoW)(uiAction, uiParam, pvParam, fWinIni);
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if (bRet)
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{
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CorrectGetUIEffects(uiAction, uiParam, pvParam, fWinIni);
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}
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return bRet;
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}
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BOOL
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NOTIFY_FUNCTION(
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DWORD fdwReason)
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{
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switch (fdwReason)
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{
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case DLL_PROCESS_ATTACH:
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{
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CSTRING_TRY
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{
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CString csCl(COMMAND_LINE);
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if (csCl.CompareNoCase(L"true") == 0)
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{
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DPFN(eDbgLevelSpew, "EmulateGetUIEffects command line forcing SPI_GETUIEFFECTS to TRUE");
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bGetUIEffects = TRUE;
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}
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else if (csCl.CompareNoCase(L"false") == 0)
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{
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DPFN(eDbgLevelSpew, "EmulateGetUIEffects command line forcing SPI_GETUIEFFECTS to FALSE");
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bGetUIEffects = FALSE;
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}
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}
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CSTRING_CATCH
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{
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return FALSE;
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}
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}
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break;
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default:
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break;
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}
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return TRUE;
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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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CALL_NOTIFY_FUNCTION
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APIHOOK_ENTRY(USER32.DLL, SystemParametersInfoA)
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APIHOOK_ENTRY(USER32.DLL, SystemParametersInfoW)
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HOOK_END
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IMPLEMENT_SHIM_END
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