private async void OcrClipboardButton_Click(object sender, RoutedEventArgs e)
{
DisableOcrButtons();
this.ErrorMessageGrid.Visibility = Visibility.Collapsed;
DataPackageView dataPackageView = Clipboard.GetContent();
if (dataPackageView.Contains(StandardDataFormats.Bitmap))
{
RandomAccessStreamReference sr = await dataPackageView.GetBitmapAsync();
// ※ RandomAccessStreamReference は Dispose 不要
if (sr != null)
{
if (this.MonitorCameraButton.IsChecked == true)
{
this.MonitorCameraButton.IsChecked = false;
}
using (var stream = await sr.OpenReadAsync())
{
var bitmap = await SoftwareBitmapHelper.ConvertToSoftwareBitmap(stream);
await SetImage(bitmap);
await RecognizeBitmapAsync(bitmap);
}
}
}
else
{
await(new MessageDialog("クリップボードに画像がありません", "画像なし"))
.ShowAsync();
}
EnableOcrButtons();
}
private async void OcrCameraButtun_Click(object sender, RoutedEventArgs e)
{
DisableOcrButtons();
this.ErrorMessageGrid.Visibility = Visibility.Collapsed;
bool isTemp = (_mediaCapture == null);
if (isTemp)
{
await InitializeMediaCaptureAsync();
}
var bitmap = await CaputureAsync();
if (bitmap != null)
{
bitmap = SoftwareBitmapHelper.CorrectFormat(bitmap);
await SetImage(bitmap);
await RecognizeBitmapAsync(bitmap);
if (isTemp)
{
await CleanupCameraAsync();
}
this.MonitorCameraButton.IsChecked = false;
}
EnableOcrButtons();
}
private async void OcrFileButton_Click(object sender, RoutedEventArgs e)
{
DisableOcrButtons();
this.ErrorMessageGrid.Visibility = Visibility.Collapsed;
var picker = new Windows.Storage.Pickers.FileOpenPicker();
picker.ViewMode = Windows.Storage.Pickers.PickerViewMode.Thumbnail;
picker.FileTypeFilter.Add(".jpg");
picker.FileTypeFilter.Add(".jpeg");
picker.FileTypeFilter.Add(".png");
picker.FileTypeFilter.Add(".gif");
picker.FileTypeFilter.Add(".bmp");
StorageFile file = await picker.PickSingleFileAsync();
if (file == null)
{
EnableOcrButtons();
return;
}
if (this.MonitorCameraButton.IsChecked == true)
{
this.MonitorCameraButton.IsChecked = false;
}
using (IRandomAccessStream stream = await file.OpenAsync(FileAccessMode.Read))
{
var bitmap = await SoftwareBitmapHelper.ConvertToSoftwareBitmap(stream);
await SetImage(bitmap);
await RecognizeBitmapAsync(bitmap);
}
EnableOcrButtons();
}
private async Task SetImage(SoftwareBitmap bitmap)
{
this.Image1.Source = await SoftwareBitmapHelper.CreateBitmapSourceAsync(bitmap);
this.OverlayCanvas.Width = bitmap.PixelWidth;
this.OverlayCanvas.Height = bitmap.PixelHeight;
}
