public static MemoryStream ToBitmapStream(WriteableBitmap bitmap)
{
var stream = new MemoryStream();
int width = bitmap.PixelWidth;
int height = bitmap.PixelHeight;
var ei = new EditableImage(width, height);
for (int i = 0; i < height; i++)
{
for (int j = 0; j < width; j++)
{
int pixel = bitmap.Pixels[(i * width) + j];
ei.SetPixel(j, i,
(byte)((pixel >> 16) & 0xFF),
(byte)((pixel >> 8) & 0xFF),
(byte)(pixel & 0xFF),
(byte)((pixel >> 24) & 0xFF)
);
}
}
Stream png = ei.GetStream();
var len = (int)png.Length;
var bytes = new byte[len];
png.Read(bytes, 0, len);
stream.Write(bytes, 0, len);
return(stream);
}
public static MemoryStream ToBitmapStream(WriteableBitmap bitmap)
{
var stream = new MemoryStream();
int width = bitmap.PixelWidth;
int height = bitmap.PixelHeight;
var ei = new EditableImage(width, height);
for (int i = 0; i < height; i++)
{
for (int j = 0; j < width; j++)
{
int pixel = bitmap.Pixels[(i * width) + j];
ei.SetPixel(j, i,
(byte)((pixel >> 16) & 0xFF),
(byte)((pixel >> 8) & 0xFF),
(byte)(pixel & 0xFF),
(byte)((pixel >> 24) & 0xFF)
);
}
}
Stream png = ei.GetStream();
var len = (int)png.Length;
var bytes = new byte[len];
png.Read(bytes, 0, len);
stream.Write(bytes, 0, len);
return stream;
}
