windows-nt/Source/XPSP1/NT/windows/appcompat/shims/general/removebroadcastpostmessage.cpp

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2020-09-26 03:20:57 -05:00
/*++
Copyright (c) 2000 Microsoft Corporation
Module Name:
RemoveBroadcastPostMessage.cpp
Abstract:
Fix apps that don't handle broadcast messages.
Notes:
This is a general purpose shim.
History:
04/28/2000 a-batjar Created
--*/
#include "precomp.h"
IMPLEMENT_SHIM_BEGIN(RemoveBroadcastPostMessage)
#include "ShimHookMacro.h"
APIHOOK_ENUM_BEGIN
APIHOOK_ENUM_ENTRY(PostMessageA)
APIHOOK_ENUM_END
/*++
Filter HWND_BROADCAST messages
--*/
BOOL
APIHOOK(PostMessageA)(
HWND hwnd,
UINT Msg,
WPARAM wParam,
LPARAM lParam
)
{
if (hwnd == HWND_BROADCAST)
{
hwnd = NULL;
}
return ORIGINAL_API(PostMessageA)(
hwnd,
Msg,
wParam,
lParam);
}
/*++
Register hooked functions
--*/
HOOK_BEGIN
APIHOOK_ENTRY(USER32.DLL, PostMessageA)
HOOK_END
IMPLEMENT_SHIM_END