private async void ExecuteBeginOcrCommand(object obj) { if (SelectedIndex >= 0) { ProgressOCRVisibility = Visibility.Visible; OcrString = string.Empty; OcrString = await OCRHelper.ScanImageOCR(ImageCollection.ListWriteImages, ProcessPages, SelectedIndex, SelectedLanguage); if (OcrString.Contains("Supported image dimensions are between 40 and 2600 pixels.")) { TextblockForeground.Color = Colors.Red; } else { TextblockForeground.Color = Colors.Black; } ProgressOCRVisibility = Visibility.Collapsed; } }