private void TrySetRegionButton_Click(object sender, RoutedEventArgs e) { var text = RegionTextBox.Text; if (!string.IsNullOrWhiteSpace(text)) { var points = text.Replace(" ", "").Split(','); if (points.Length == 4) { var x = Int32.Parse(points[0]); var y = Int32.Parse(points[1]); var width = Int32.Parse(points[2]); var height = Int32.Parse(points[3]); var ret = ImageCropper.TrySetCroppedRegion(new Rect(x, y, width, height)); } } }