mirror of https://github.com/tongzx/nt5src
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
90 lines
1.3 KiB
90 lines
1.3 KiB
/*++
|
|
|
|
Copyright (c) 2000 Microsoft Corporation
|
|
|
|
Module Name:
|
|
|
|
NullHwndInMessageBox.cpp
|
|
|
|
Abstract:
|
|
|
|
This shim replaces "non window" handles in msgbox with NULL to tell it
|
|
that desktop is owner.
|
|
|
|
Notes:
|
|
|
|
This is a general purpose shim.
|
|
|
|
History:
|
|
|
|
12/08/1999 a-jamd Created
|
|
|
|
--*/
|
|
|
|
#include "precomp.h"
|
|
|
|
IMPLEMENT_SHIM_BEGIN(NullHwndInMessageBox)
|
|
#include "ShimHookMacro.h"
|
|
|
|
APIHOOK_ENUM_BEGIN
|
|
APIHOOK_ENUM_ENTRY(MessageBoxA)
|
|
APIHOOK_ENUM_ENTRY(MessageBoxW)
|
|
APIHOOK_ENUM_END
|
|
|
|
/*++
|
|
|
|
This stub function sets hWnd to NULL if it is not a valid window.
|
|
|
|
--*/
|
|
int
|
|
APIHOOK(MessageBoxA)(
|
|
HWND hWnd,
|
|
LPCSTR lpText,
|
|
LPCSTR lpCaption,
|
|
UINT uType
|
|
)
|
|
{
|
|
if (IsWindow(hWnd) == 0) {
|
|
hWnd = NULL;
|
|
}
|
|
|
|
return ORIGINAL_API(MessageBoxA)(hWnd, lpText, lpCaption, uType);
|
|
}
|
|
|
|
/*++
|
|
|
|
This stub function sets hWnd to NULL if it is not a valid window.
|
|
|
|
--*/
|
|
|
|
int
|
|
APIHOOK(MessageBoxW)(
|
|
HWND hWnd,
|
|
LPCWSTR lpText,
|
|
LPCWSTR lpCaption,
|
|
UINT uType
|
|
)
|
|
{
|
|
if (IsWindow(hWnd) == 0) {
|
|
hWnd = NULL;
|
|
}
|
|
|
|
return ORIGINAL_API(MessageBoxW)(hWnd, lpText, lpCaption, uType);
|
|
}
|
|
|
|
/*++
|
|
|
|
Register hooked functions
|
|
|
|
--*/
|
|
|
|
HOOK_BEGIN
|
|
|
|
APIHOOK_ENTRY(USER32.DLL, MessageBoxA)
|
|
APIHOOK_ENTRY(USER32.DLL, MessageBoxW)
|
|
|
|
HOOK_END
|
|
|
|
|
|
IMPLEMENT_SHIM_END
|
|
|