public static T GetChildWindowWithControlId <T>(this UIItem parent, int controlId, int timeout = 0)
where T : UIItem
{
do
{
var pointer = IntPtr.Zero;
Methods.EnumWindowProcedure childProc = (handle, arg) =>
{
var cId = Methods.GetWindowLong(handle, -12);
if (cId == controlId)
{
pointer = handle;
return(false);
}
return(true);
};
Methods.EnumChildWindows(parent.GetHWnd(), childProc, IntPtr.Zero);
if (pointer != IntPtr.Zero)
{
var el = AutomationElement.FromHandle(pointer);
return((T)Activator.CreateInstance(typeof(T), el, new ProcessActionListener(el)));
}
Thread.Sleep(200);
timeout -= 200;
} while (timeout > 0);
return(null);
}