Source code of Windows XP (NT5)
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138 lines
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/*++
Copyright (c) 2000 Microsoft Corporation
Module Name:
DirtTrackRacing.cpp
Abstract:
App shows a white (or whatever your default window background color is) screen when starting up which is
inconsistent behavior from on 9x because on 9x it doesn't draw anything if the app's window class doesn't
have a background brush. Use a black brush for the background.
Notes:
This is an app specific shim.
History:
10/01/2000 maonis Created
11/07/2000 maonis Added checking for Dirt Track Racing Sprint Cars window class.
11/29/2000 andyseti Converted into AppSpecific shim.
--*/
#include "precomp.h"
IMPLEMENT_SHIM_BEGIN(DirtTrackRacing)
#include "ShimHookMacro.h"
APIHOOK_ENUM_BEGIN
APIHOOK_ENUM_ENTRY(RegisterClassA)
APIHOOK_ENUM_ENTRY(CreateWindowExA)
APIHOOK_ENUM_END
/*++
Register a black brush for the window class.
--*/
ATOM
APIHOOK(RegisterClassA)(
CONST WNDCLASSA *lpwcx
)
{
CSTRING_TRY
{
CString csClassName(lpwcx->lpszClassName);
if ( !csClassName.CompareNoCase(L"DTR Class") || !csClassName.CompareNoCase(L"DTRSC Class"))
{
WNDCLASSA wcNewWndClass = *lpwcx;
wcNewWndClass.hbrBackground = (HBRUSH) GetStockObject(BLACK_BRUSH);
LOGN(
eDbgLevelError,
"RegisterClassA called. Register a black brush for the window class=%s.",
lpwcx->lpszClassName);
return ORIGINAL_API(RegisterClassA)(&wcNewWndClass);
}
}
CSTRING_CATCH
{
// Do nothing
}
return ORIGINAL_API(RegisterClassA)(lpwcx);
}
/*++
We need to hide the window at first so after you choose the mode and start the app it won't flicker.
DDraw will automatically unhide the window.
--*/
HWND
APIHOOK(CreateWindowExA)(
DWORD dwExStyle,
LPCSTR lpClassName, // registered class name
LPCSTR lpWindowName, // window name
DWORD dwStyle, // window style
int x, // horizontal position of window
int y, // vertical position of window
int nWidth, // window width
int nHeight, // window height
HWND hWndParent, // handle to parent or owner window
HMENU hMenu, // menu handle or child identifier
HINSTANCE hInstance, // handle to application instance
LPVOID lpParam // window-creation data
)
{
CSTRING_TRY
{
CString csClassName(lpClassName);
if ( !csClassName.CompareNoCase(L"DTR Class") || !csClassName.CompareNoCase(L"DTRSC Class"))
{
dwStyle &= ~WS_VISIBLE;
LOGN( eDbgLevelError,
"CreateWindowExA called. Hide the window at first for the window class=%s.",
lpClassName);
}
}
CSTRING_CATCH
{
// Do nothing
}
return ORIGINAL_API(CreateWindowExA)(
dwExStyle,
lpClassName,
lpWindowName,
dwStyle,
x, y,
nWidth, nHeight,
hWndParent,
hMenu,
hInstance,
lpParam);
}
/*++
Register hooked functions
--*/
HOOK_BEGIN
APIHOOK_ENTRY(USER32.DLL, RegisterClassA)
APIHOOK_ENTRY(USER32.DLL, CreateWindowExA)
HOOK_END
IMPLEMENT_SHIM_END