VOID FASTCALL UserLeave(VOID)
{
ASSERT_NOGDILOCKS();
ASSERT(UserIsEntered());
ExReleaseResourceLite(&UserLock);
KeLeaveCriticalRegion();
}
/*
* @implemented
*/
VOID
APIENTRY
EngDeleteWnd(
IN WNDOBJ *pwo)
{
WNDGDI *WndObjInt = ObjToGDI(pwo, WND);
PWND Window;
BOOL calledFromUser;
DPRINT("EngDeleteWnd: pwo = 0x%p\n", pwo);
calledFromUser = UserIsEntered();
if (!calledFromUser){
UserEnterExclusive();
}
/* Get window object */
Window = UserGetWindowObject(WndObjInt->Hwnd);
if (Window == NULL)
{
DPRINT1("Warning: Couldnt get window object for WndObjInt->Hwnd!!!\n");
}
else
{
/* Remove object from window */
IntRemoveProp(Window, AtomWndObj);
--gcountPWO;
}
if (!calledFromUser){
UserLeave();
}
/* Free resources */
IntEngDeleteClipRegion(WndObjInt->ClientClipObj);
EngFreeMem(WndObjInt);
}
APIENTRY
EngCreateWnd(
SURFOBJ *pso,
HWND hWnd,
WNDOBJCHANGEPROC pfn,
FLONG fl,
int iPixelFormat)
{
WNDGDI *WndObjInt = NULL;
WNDOBJ *WndObjUser = NULL;
PWND Window;
BOOL calledFromUser;
DECLARE_RETURN(WNDOBJ*);
DPRINT("EngCreateWnd: pso = 0x%p, hwnd = 0x%p, pfn = 0x%p, fl = 0x%lx, pixfmt = %d\n",
pso, hWnd, pfn, fl, iPixelFormat);
calledFromUser = UserIsEntered();
if (!calledFromUser){
UserEnterShared();
}
/* Get window object */
Window = UserGetWindowObject(hWnd);
if (Window == NULL)
{
RETURN( NULL);
}
/* Create WNDOBJ */
WndObjInt = EngAllocMem(0, sizeof (WNDGDI), GDITAG_WNDOBJ);
if (WndObjInt == NULL)
{
DPRINT1("Failed to allocate memory for a WND structure!\n");
RETURN( NULL);
}
/* Fill the clipobj */
WndObjInt->ClientClipObj = NULL;
if (!IntEngWndUpdateClipObj(WndObjInt, Window))
{
EngFreeMem(WndObjInt);
RETURN( NULL);
}
/* Fill user object */
WndObjUser = GDIToObj(WndObjInt, WND);
WndObjUser->psoOwner = pso;
WndObjUser->pvConsumer = NULL;
/* Fill internal object */
WndObjInt->Hwnd = hWnd;
WndObjInt->ChangeProc = pfn;
WndObjInt->Flags = fl;
WndObjInt->PixelFormat = iPixelFormat;
/* associate object with window */
IntSetProp(Window, AtomWndObj, WndObjInt);
++gcountPWO;
DPRINT("EngCreateWnd: SUCCESS!\n");
RETURN( WndObjUser);
CLEANUP:
if (!calledFromUser){
UserLeave();
}
END_CLEANUP;
}
