private void OnLoaded(object sender, RoutedEventArgs e)
{
if (HwndControl.Hwnd != IntPtr.Zero && renderer == IntPtr.Zero)
{
WindowAPI.InitRenderer(HwndControl.Hwnd, out renderer);
CompositionTarget.Rendering += new EventHandler(CompositionTarget_Rendering);
var spr = FindResource("WhitePixel") as BitmapImage;
WindowAPI.RegisterTexture(renderer, "roaam_zone", System.AppDomain.CurrentDomain.BaseDirectory + spr.UriSource.LocalPath, 1, out var texture);
LoadedImages["roaam_zone"] = new TexData(true, texture, WindowAPI.BitmapImageToBitmap(spr));
}
}