120 lines
2.2 KiB
C++
120 lines
2.2 KiB
C++
|
/*++
|
||
|
|
|
||
|
|
Copyright (c) 2000 Microsoft Corporation
|
||
|
|
|
||
|
|
Module Name:
|
||
|
|
|
||
|
|
ForceAVIWindow.cpp
|
||
|
|
|
||
|
|
Abstract:
|
||
|
|
|
||
|
|
Some apps that use MCI to play their AVIs send messages in an order that
|
||
|
|
causes mciavi32 to continually re-open the window it's supposed to be
|
||
|
|
playing to.
|
||
|
|
|
||
|
|
The code in mciavi is different on win9x, so the exact reason for this shim
|
||
|
|
is hidden in layers of user/avi code. Here we just filter the message that
|
||
|
|
causes the avi stuff to not use the existing window it's been given.
|
||
|
|
|
||
|
|
Notes:
|
||
|
|
|
||
|
|
This is an app specific shim.
|
||
|
|
|
||
|
|
History:
|
||
|
|
|
||
|
|
02/22/2000 linstev Created
|
||
|
|
09/27/2000 mnikkel Modified to destroy the MCI window on a command line input
|
||
|
|
|
||
|
|
--*/
|
||
|
|
|
||
|
|
#include "precomp.h"
|
||
|
|
|
||
|
|
IMPLEMENT_SHIM_BEGIN(ForceAVIWindow)
|
||
|
|
#include "ShimHookMacro.h"
|
||
|
|
|
||
|
|
APIHOOK_ENUM_BEGIN
|
||
|
|
APIHOOK_ENUM_ENTRY(PostMessageW)
|
||
|
|
APIHOOK_ENUM_END
|
||
|
|
|
||
|
|
BOOL g_bDestroyWindow= FALSE;
|
||
|
|
|
||
|
|
/*++
|
||
|
|
|
||
|
|
Filter AVIM_SHOWSTAGE
|
||
|
|
|
||
|
|
--*/
|
||
|
|
|
||
|
|
BOOL
|
||
|
|
APIHOOK(PostMessageW)(
|
||
|
|
HWND hWnd,
|
||
|
|
UINT Msg,
|
||
|
|
WPARAM wParam,
|
||
|
|
LPARAM lParam
|
||
|
|
)
|
||
|
|
{
|
||
|
|
#define AVIM_SHOWSTAGE (WM_USER+104)
|
||
|
|
|
||
|
|
BOOL bRet;
|
||
|
|
|
||
|
|
// Eat the AVIM_SHOWSTAGE message
|
||
|
|
if (Msg != AVIM_SHOWSTAGE)
|
||
|
|
{
|
||
|
|
bRet = ORIGINAL_API(PostMessageW)(
|
||
|
|
hWnd,
|
||
|
|
Msg,
|
||
|
|
wParam,
|
||
|
|
lParam);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
LOGN( eDbgLevelError,
|
||
|
|
"[APIHook_PostMessageW] AVIM_SHOWSTAGE message discarded");
|
||
|
|
|
||
|
|
// if command line specified to destroy the MCI window do so now.
|
||
|
|
if (g_bDestroyWindow)
|
||
|
|
{
|
||
|
|
MCIWndDestroy(hWnd);
|
||
|
|
}
|
||
|
|
|
||
|
|
bRet = TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
return bRet;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*++
|
||
|
|
|
||
|
|
Register hooked functions
|
||
|
|
|
||
|
|
--*/
|
||
|
|
|
||
|
|
BOOL
|
||
|
|
NOTIFY_FUNCTION(
|
||
|
|
DWORD fdwReason)
|
||
|
|
{
|
||
|
|
if (fdwReason == DLL_PROCESS_ATTACH)
|
||
|
|
{
|
||
|
|
CSTRING_TRY
|
||
|
|
{
|
||
|
|
CString csCl(COMMAND_LINE);
|
||
|
|
g_bDestroyWindow = csCl.CompareNoCase(L"DestroyMCIWindow") == 0;
|
||
|
|
}
|
||
|
|
CSTRING_CATCH
|
||
|
|
{
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
HOOK_BEGIN
|
||
|
|
|
||
|
|
APIHOOK_ENTRY(USER32.DLL, PostMessageW)
|
||
|
|
CALL_NOTIFY_FUNCTION
|
||
|
|
|
||
|
|
HOOK_END
|
||
|
|
|
||
|
|
IMPLEMENT_SHIM_END
|
||
|
|
|