85 lines
1.3 KiB
C++
85 lines
1.3 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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Force640x480x8.cpp
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Abstract:
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This shim is for games that assume the start resolution is 640x480x8.
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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(Force640x480x8)
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#include "ShimHookMacro.h"
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APIHOOK_ENUM_BEGIN
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APIHOOK_ENUM_END
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#define CDS_WIDTH 640
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#define CDS_HEIGHT 480
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#define CDS_BITS 8
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VOID
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ChangeMode()
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{
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DEVMODEA dm;
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__try {
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EnumDisplaySettingsA(NULL, ENUM_CURRENT_SETTINGS, &dm);
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if ((dm.dmPelsWidth != CDS_WIDTH) ||
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(dm.dmPelsHeight != CDS_HEIGHT) ||
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(dm.dmBitsPerPel != CDS_BITS)) {
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//
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// The mode is different, so change
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//
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dm.dmPelsWidth = CDS_WIDTH;
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dm.dmPelsHeight = CDS_HEIGHT;
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dm.dmBitsPerPel = CDS_BITS;
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ChangeDisplaySettingsA(&dm, CDS_FULLSCREEN);
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}
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}
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__except(1) {
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DPFN( eDbgLevelWarning, "Exception trying to change mode");
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};
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}
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/*++
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Register hooked functions
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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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if (fdwReason == SHIM_STATIC_DLLS_INITIALIZED) {
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ChangeMode();
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}
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return TRUE;
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}
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HOOK_BEGIN
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CALL_NOTIFY_FUNCTION
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HOOK_END
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IMPLEMENT_SHIM_END
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