windows-nt/Source/XPSP1/NT/windows/appcompat/shims/specific/creativeonscreendisplay.cpp

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2020-09-26 03:20:57 -05:00
/*++
Copyright (c) 2002 Microsoft Corporation
Module Name:
CreativeOnScreenDisplay.cpp
Abstract:
App crashes with low resolution display changes.
Notes:
This is an app specific shim.
History:
06/25/2002 linstev Created
--*/
#include "precomp.h"
IMPLEMENT_SHIM_BEGIN(CreativeOnScreenDisplay)
#include "ShimHookMacro.h"
APIHOOK_ENUM_BEGIN
APIHOOK_ENUM_ENTRY(RegisterClassA)
APIHOOK_ENUM_ENTRY(SetWindowLongA)
APIHOOK_ENUM_END
/*++
Handle display change messages
--*/
LRESULT
CALLBACK
Creative_WindowProcHook(
WNDPROC pfnOld,
HWND hwnd,
UINT uMsg,
WPARAM wParam,
LPARAM lParam
)
{
if (uMsg == WM_DISPLAYCHANGE)
{
// Ignore this message if the resolution is too low
if ((LOWORD(lParam) < 512) || (HIWORD(lParam) < 384))
{
LOGN(eDbgLevelError, "[WndProc] Hiding WM_DISPLAYCHANGE for low resolution mode");
return 0;
}
}
return (*pfnOld)(hwnd, uMsg, wParam, lParam);
}
/*++
Hook the wndproc
--*/
ATOM
APIHOOK(RegisterClassA)(
CONST WNDCLASSA *lpWndClass
)
{
WNDCLASSA wcNewWndClass = *lpWndClass;
wcNewWndClass.lpfnWndProc =
(WNDPROC) HookCallback(lpWndClass->lpfnWndProc, Creative_WindowProcHook);
return ORIGINAL_API(RegisterClassA)(&wcNewWndClass);
}
LONG
APIHOOK(SetWindowLongA)(
HWND hWnd,
int nIndex,
LONG dwNewLong
)
{
if (nIndex == GWL_WNDPROC)
{
dwNewLong = (LONG) HookCallback((PVOID)dwNewLong, Creative_WindowProcHook);
}
return ORIGINAL_API(SetWindowLongA)(
hWnd,
nIndex,
dwNewLong);
}
/*++
Register hooked functions
--*/
HOOK_BEGIN
APIHOOK_ENTRY(USER32.DLL, RegisterClassA)
APIHOOK_ENTRY(USER32.DLL, SetWindowLongA)
HOOK_END
IMPLEMENT_SHIM_END