// Create an Accessible object; may return null
internal static Accessible Create(IntPtr hwnd, int idObject, int idChild)
{
IAccessible acc = null;
object child = null;
if (UnsafeNativeMethods.AccessibleObjectFromEvent(hwnd, idObject, idChild, ref acc, ref child) != 0 /*S_OK*/ || acc == null)
{
return(null);
}
// Per SDK must use the ppacc and pvarChild from AccessibleObjectFromEvent
// to access information about this UI element.
return(new Accessible(acc, child));
}
