static PWINSTATION_OBJECT FASTCALL
IntGetWinStaForCbAccess(VOID)
{
HWINSTA hWinSta;
PWINSTATION_OBJECT pWinStaObj;
NTSTATUS Status;
hWinSta = UserGetProcessWindowStation();
Status = IntValidateWindowStationHandle(hWinSta, KernelMode, WINSTA_ACCESSCLIPBOARD, &pWinStaObj, 0);
if (!NT_SUCCESS(Status))
{
ERR("Cannot open winsta\n");
SetLastNtError(Status);
return NULL;
}
return pWinStaObj;
}
BOOL
APIENTRY
NtUserCloseWindowStation(
HWINSTA hWinSta)
{
PWINSTATION_OBJECT Object;
NTSTATUS Status;
TRACE("NtUserCloseWindowStation called (%p)\n", hWinSta);
if (hWinSta == UserGetProcessWindowStation())
{
ERR("Attempted to close process window station\n");
return FALSE;
}
Status = IntValidateWindowStationHandle(hWinSta,
UserMode,
0,
&Object,
0);
if (!NT_SUCCESS(Status))
{
ERR("Validation of window station handle (%p) failed\n", hWinSta);
return FALSE;
}
ObDereferenceObject(Object);
TRACE("Closing window station handle (%p)\n", hWinSta);
Status = ObCloseHandle(hWinSta, UserMode);
if (!NT_SUCCESS(Status))
{
SetLastNtError(Status);
return FALSE;
}
return TRUE;
}
HWINSTA APIENTRY
NtUserGetProcessWindowStation(VOID)
{
return UserGetProcessWindowStation();
}
