100 lines
2 KiB
C++
100 lines
2 KiB
C++
/*++
|
|
|
|
Copyright (c) 2001 Microsoft Corporation
|
|
|
|
Module Name:
|
|
|
|
QuickTime5.cpp
|
|
|
|
Abstract:
|
|
|
|
QuickTime 5 is calling Get/SetWindowLong(GWL_WNDPROC/DWL_DLGPROC) on hwnds outside its process
|
|
and it is passing hardcoded strings within its address space (these calls will always fail on
|
|
win9x). On 32-bit platforms this is pretty much benign, but on ia64 the call to SetWindowLong(hwnd, DWL_DLGPROC, crap)
|
|
succeeds in trashing private window bits in explorer windows (since the window is not a dialog hwnd).
|
|
|
|
Notes:
|
|
|
|
This is an app specific shim.
|
|
|
|
History:
|
|
|
|
7/31/2001 reinerf Created
|
|
|
|
--*/
|
|
|
|
#include "precomp.h"
|
|
|
|
IMPLEMENT_SHIM_BEGIN(QuickTime5)
|
|
#include "ShimHookMacro.h"
|
|
|
|
APIHOOK_ENUM_BEGIN
|
|
APIHOOK_ENUM_ENTRY(GetWindowLongA)
|
|
APIHOOK_ENUM_ENTRY(SetWindowLongA)
|
|
APIHOOK_ENUM_END
|
|
|
|
|
|
LONG
|
|
APIHOOK(GetWindowLongA)(HWND hwnd, int iIndex)
|
|
{
|
|
if (hwnd)
|
|
{
|
|
if ((iIndex == GWL_WNDPROC) ||
|
|
(iIndex == DWL_DLGPROC))
|
|
{
|
|
DWORD dwPID = 0;
|
|
|
|
GetWindowThreadProcessId(hwnd, &dwPID);
|
|
|
|
if (GetCurrentProcessId() != dwPID)
|
|
{
|
|
// we are querying an hwnd that is not in our
|
|
// process-- just fail the call
|
|
return 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
return ORIGINAL_API(GetWindowLongA)(hwnd, iIndex);
|
|
}
|
|
|
|
|
|
LONG
|
|
APIHOOK(SetWindowLongA)(HWND hwnd, int iIndex, LONG lNew)
|
|
{
|
|
if (hwnd)
|
|
{
|
|
if ((iIndex == GWL_WNDPROC) ||
|
|
(iIndex == DWL_DLGPROC))
|
|
{
|
|
|
|
DWORD dwPID = 0;
|
|
|
|
GetWindowThreadProcessId(hwnd, &dwPID);
|
|
|
|
if (GetCurrentProcessId() != dwPID)
|
|
{
|
|
// we are trying modify an hwnd that is not in our
|
|
// process-- just fail the call
|
|
return 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
return ORIGINAL_API(SetWindowLongA)(hwnd, iIndex, lNew);
|
|
}
|
|
|
|
|
|
/*++
|
|
|
|
Register hooked functions
|
|
|
|
--*/
|
|
|
|
HOOK_BEGIN
|
|
APIHOOK_ENTRY(USER32.DLL, GetWindowLongA)
|
|
APIHOOK_ENTRY(USER32.DLL, SetWindowLongA)
|
|
HOOK_END
|
|
|
|
IMPLEMENT_SHIM_END
|