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- Fix NtUserCallMsgFilter so it initiates the hook call.

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svn path=/trunk/; revision=34794
This commit is contained in:
James Tabor 2008-07-25 23:08:50 +00:00
parent 4b1181962c
commit 9bec76e407
1 changed files with 44 additions and 4 deletions
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48
reactos/subsystems/win32/win32k/ntuser/message.c
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@ -298,17 +298,57 @@ UnpackParam(LPARAM lParamPacked, UINT Msg, WPARAM wParam, LPARAM lParam)
BOOL
STDCALL
NtUserCallMsgFilter(
LPMSG msg,
LPMSG lpmsg,
INT code)
{
BOOL BadChk = FALSE;
MSG Msg;
DECLARE_RETURN(BOOL);
DPRINT("Enter NtUserCallMsgFilter\n");
UserEnterExclusive();
if (lpmsg)
{
_SEH_TRY
{
ProbeForRead((PVOID)lpmsg,
sizeof(MSG),
1);
RtlCopyMemory( &Msg,
(PVOID)lpmsg,
sizeof(MSG));
}
_SEH_HANDLE
{
BadChk = TRUE;
}
_SEH_END;
}
else
RETURN( FALSE);
if ( UserCallNextHookEx( WH_SYSMSGFILTER, code, 0, (LPARAM)msg, FALSE))
RETURN( TRUE);
RETURN( UserCallNextHookEx( WH_MSGFILTER, code, 0, (LPARAM)msg, FALSE));
if (BadChk) RETURN( FALSE);
if (!co_HOOK_CallHooks( WH_SYSMSGFILTER, code, 0, (LPARAM)&Msg))
{
co_HOOK_CallHooks( WH_MSGFILTER, code, 0, (LPARAM)&Msg);
}
_SEH_TRY
{
ProbeForWrite((PVOID)lpmsg,
sizeof(MSG),
1);
RtlCopyMemory((PVOID)lpmsg,
&Msg,
sizeof(MSG));
}
_SEH_HANDLE
{
BadChk = TRUE;
}
_SEH_END;
if (BadChk) RETURN( FALSE);
CLEANUP:
DPRINT("Leave NtUserCallMsgFilter. ret=%i\n", _ret_);