I want to convert a WriteableBitmap image to a Byte[] array using C# code in Windows store metro style apps.
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1 Answer
WriteableBitmap exposes PixelBuffer property of type IBuffer - a Windows Runtime interface which can be converted to a byte array with .NET Streams
byte[] ConvertBitmapToByteArray(WriteableBitmap bitmap)
{
using (Stream stream = bitmap.PixelBuffer.AsStream())
using (MemoryStream memoryStream = new MemoryStream())
{
stream.CopyTo(memoryStream);
return memoryStream.ToArray();
}
}
3 Comments
v.g.
'IBuffer' does not contain a definition for 'AsStream' and the best extension method overload 'WindowsRuntimeStreamExtensions.AsStream(IRandomAccessStream)' requires a receiver of type 'IRandomAccessStream'
SepehrM
@V.G. Since it's an extension method, you'll need to add
using System.Runtime.InteropServices.WindowsRuntime
Robert J. Good
This is the only answer (after extensive searching) that works in Windows Universal projects. .Net classes and namespaces have shifted since WPF, to Win 8 metro store to Universal Windows...so this answer is gold!
