BOOL FASTCALL
co_IntSetCaretPos(int X, int Y)
{
PTHREADINFO pti;
PWND pWnd;
PUSER_MESSAGE_QUEUE ThreadQueue;
pti = PsGetCurrentThreadWin32Thread();
ThreadQueue = pti->MessageQueue;
if(ThreadQueue->CaretInfo->hWnd)
{
pWnd = UserGetWindowObject(ThreadQueue->CaretInfo->hWnd);
if(ThreadQueue->CaretInfo->Pos.x != X || ThreadQueue->CaretInfo->Pos.y != Y)
{
co_IntHideCaret(ThreadQueue->CaretInfo);
ThreadQueue->CaretInfo->Showing = 0;
ThreadQueue->CaretInfo->Pos.x = X;
ThreadQueue->CaretInfo->Pos.y = Y;
IntSetTimer(pWnd, IDCARETTIMER, gpsi->dtCaretBlink, CaretSystemTimerProc, TMRF_SYSTEM);
IntNotifyWinEvent(EVENT_OBJECT_LOCATIONCHANGE, pWnd, OBJID_CARET, CHILDID_SELF, 0);
}
return TRUE;
}
return FALSE;
}
BOOL FASTCALL co_UserHideCaret(PWND Window OPTIONAL)
{
PTHREADINFO pti;
PUSER_MESSAGE_QUEUE ThreadQueue;
if (Window) ASSERT_REFS_CO(Window);
if(Window && Window->head.pti->pEThread != PsGetCurrentThread())
{
EngSetLastError(ERROR_ACCESS_DENIED);
return FALSE;
}
pti = PsGetCurrentThreadWin32Thread();
ThreadQueue = pti->MessageQueue;
if(Window && ThreadQueue->CaretInfo->hWnd != Window->head.h)
{
EngSetLastError(ERROR_ACCESS_DENIED);
return FALSE;
}
if(ThreadQueue->CaretInfo->Visible)
{
PWND pwnd = UserGetWindowObject(ThreadQueue->CaretInfo->hWnd);
IntKillTimer(pwnd, IDCARETTIMER, TRUE);
co_IntHideCaret(ThreadQueue->CaretInfo);
ThreadQueue->CaretInfo->Visible = 0;
ThreadQueue->CaretInfo->Showing = 0;
}
return TRUE;
}
BOOL FASTCALL
co_IntDestroyCaret(PTHREADINFO Win32Thread)
{
PUSER_MESSAGE_QUEUE ThreadQueue;
PWND pWnd;
ThreadQueue = (PUSER_MESSAGE_QUEUE)Win32Thread->MessageQueue;
if(!ThreadQueue || !ThreadQueue->CaretInfo)
return FALSE;
pWnd = UserGetWindowObject(ThreadQueue->CaretInfo->hWnd);
co_IntHideCaret(ThreadQueue->CaretInfo);
ThreadQueue->CaretInfo->Bitmap = (HBITMAP)0;
ThreadQueue->CaretInfo->hWnd = (HWND)0;
ThreadQueue->CaretInfo->Size.cx = ThreadQueue->CaretInfo->Size.cy = 0;
ThreadQueue->CaretInfo->Showing = 0;
ThreadQueue->CaretInfo->Visible = 0;
IntNotifyWinEvent(EVENT_OBJECT_DESTROY, pWnd, OBJID_CARET, CHILDID_SELF, 0);
return TRUE;
}
BOOL
APIENTRY
NtUserCreateCaret(
HWND hWnd,
HBITMAP hBitmap,
int nWidth,
int nHeight)
{
PWND Window;
PTHREADINFO pti;
PUSER_MESSAGE_QUEUE ThreadQueue;
DECLARE_RETURN(BOOL);
TRACE("Enter NtUserCreateCaret\n");
UserEnterExclusive();
if(!(Window = UserGetWindowObject(hWnd)))
{
RETURN(FALSE);
}
if(Window->head.pti->pEThread != PsGetCurrentThread())
{
EngSetLastError(ERROR_ACCESS_DENIED);
RETURN(FALSE);
}
pti = PsGetCurrentThreadWin32Thread();
ThreadQueue = pti->MessageQueue;
if (ThreadQueue->CaretInfo->Visible)
{
IntKillTimer(Window, IDCARETTIMER, TRUE);
co_IntHideCaret(ThreadQueue->CaretInfo);
}
ThreadQueue->CaretInfo->hWnd = hWnd;
if(hBitmap)
{
ThreadQueue->CaretInfo->Bitmap = hBitmap;
ThreadQueue->CaretInfo->Size.cx = ThreadQueue->CaretInfo->Size.cy = 0;
}
else
{
if (nWidth == 0)
{
nWidth = UserGetSystemMetrics(SM_CXBORDER);
}
if (nHeight == 0)
{
nHeight = UserGetSystemMetrics(SM_CYBORDER);
}
ThreadQueue->CaretInfo->Bitmap = (HBITMAP)0;
ThreadQueue->CaretInfo->Size.cx = nWidth;
ThreadQueue->CaretInfo->Size.cy = nHeight;
}
ThreadQueue->CaretInfo->Visible = 0;
ThreadQueue->CaretInfo->Showing = 0;
IntSetTimer( Window, IDCARETTIMER, gpsi->dtCaretBlink, CaretSystemTimerProc, TMRF_SYSTEM );
IntNotifyWinEvent(EVENT_OBJECT_CREATE, Window, OBJID_CARET, CHILDID_SELF, 0);
RETURN(TRUE);
CLEANUP:
TRACE("Leave NtUserCreateCaret, ret=%i\n",_ret_);
UserLeave();
END_CLEANUP;
}
