159 lines
3.0 KiB
C++
159 lines
3.0 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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ForceTemporaryModeChange.cpp
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Abstract:
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A hack for several apps that permanently change the display mode and fail
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to restore it correctly. Some of these apps do restore the resolution, but
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not the refresh rate. 1024x768 @ 60Hz looks really bad.
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Notes:
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This is a general purpose shim.
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History:
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01/20/2000 linstev Created
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--*/
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#include "precomp.h"
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IMPLEMENT_SHIM_BEGIN(ForceTemporaryModeChange)
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#include "ShimHookMacro.h"
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APIHOOK_ENUM_BEGIN
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APIHOOK_ENUM_ENTRY(ChangeDisplaySettingsA)
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APIHOOK_ENUM_ENTRY(ChangeDisplaySettingsW)
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APIHOOK_ENUM_ENTRY(ChangeDisplaySettingsExA)
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APIHOOK_ENUM_ENTRY(ChangeDisplaySettingsExW)
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APIHOOK_ENUM_END
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/*++
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Force temporary change.
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--*/
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LONG
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APIHOOK(ChangeDisplaySettingsA)(
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LPDEVMODEA lpDevMode,
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DWORD dwFlags
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)
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{
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if (dwFlags != CDS_FULLSCREEN) {
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LOGN(
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eDbgLevelError,
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"[ChangeDisplaySettingsA] Changing flags to CDS_FULLSCREEN.");
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}
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return ORIGINAL_API(ChangeDisplaySettingsA)(
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lpDevMode,
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CDS_FULLSCREEN);
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}
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/*++
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Force temporary change.
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--*/
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LONG
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APIHOOK(ChangeDisplaySettingsW)(
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LPDEVMODEW lpDevMode,
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DWORD dwFlags
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)
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{
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if (dwFlags != CDS_FULLSCREEN) {
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LOGN(
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eDbgLevelError,
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"[ChangeDisplaySettingsW] Changing flags to CDS_FULLSCREEN.");
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}
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return ORIGINAL_API(ChangeDisplaySettingsW)(
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lpDevMode,
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CDS_FULLSCREEN);
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}
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/*++
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Force temporary change.
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--*/
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LONG
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APIHOOK(ChangeDisplaySettingsExA)(
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LPCSTR lpszDeviceName,
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LPDEVMODEA lpDevMode,
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HWND hwnd,
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DWORD dwflags,
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LPVOID lParam
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)
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{
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if (dwflags != CDS_FULLSCREEN) {
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LOGN(
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eDbgLevelError,
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"[ChangeDisplaySettingsExA] Changing flags to CDS_FULLSCREEN.");
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}
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return ORIGINAL_API(ChangeDisplaySettingsExA)(
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lpszDeviceName,
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lpDevMode,
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hwnd,
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CDS_FULLSCREEN,
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lParam);
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}
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/*++
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Force temporary change.
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--*/
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LONG
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APIHOOK(ChangeDisplaySettingsExW)(
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LPCWSTR lpszDeviceName,
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LPDEVMODEW lpDevMode,
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HWND hwnd,
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DWORD dwflags,
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LPVOID lParam
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)
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{
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if (dwflags != CDS_FULLSCREEN) {
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LOGN(
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eDbgLevelError,
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"[ChangeDisplaySettingsExW] Changing flags to CDS_FULLSCREEN.");
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}
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return ORIGINAL_API(ChangeDisplaySettingsExW)(
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lpszDeviceName,
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lpDevMode,
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hwnd,
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CDS_FULLSCREEN,
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lParam);
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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, ChangeDisplaySettingsA)
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APIHOOK_ENTRY(USER32.DLL, ChangeDisplaySettingsW)
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APIHOOK_ENTRY(USER32.DLL, ChangeDisplaySettingsExA)
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APIHOOK_ENTRY(USER32.DLL, ChangeDisplaySettingsExW)
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HOOK_END
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IMPLEMENT_SHIM_END
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