private async Task SaveImageAsync()
{
var writeableBitmap = (WriteableBitmap)ColorizedImage;
var storageService = new StorageManagerService();
StorageFile savefile = await storageService.CreateFileAsync(Guid.NewGuid().ToString(), "png");
if (savefile == null)
{
return;
}
IRandomAccessStream stream = await savefile.OpenAsync(FileAccessMode.ReadWrite);
BitmapEncoder encoder = await BitmapEncoder.CreateAsync(BitmapEncoder.PngEncoderId,
stream);
// Get pixels of the WriteableBitmap object
Stream pixelStream = writeableBitmap.PixelBuffer.AsStream();
byte[] pixels = new byte[pixelStream.Length];
await pixelStream.ReadAsync(pixels, 0, pixels.Length);
encoder.SetPixelData(BitmapPixelFormat.Bgra8,
BitmapAlphaMode.Straight,
(uint)writeableBitmap.PixelWidth,
(uint)writeableBitmap.PixelHeight,
96.0,
96.0,
pixels);
await encoder.FlushAsync();
stream.Dispose();
var fileUri = storageService.GetUriFromFile(savefile);
SavedImage = fileUri.AbsoluteUri;
}
