问题
I want to convert BitmapImage to byte[] in windows 8 application. I know how to do it using windows sdk but can't seem to get it working for WinRT sdk.
One or two posts are suggesting that I should use WritableBitmap to achieve that but there are no clear examples.
Conversion of BitmapImage to Byte array (Windows)
following is the best I found but still too vague for me
WinRT Loading an Image into a Byte array
I'll appreciate any help.
回答1:
You should look at the WriteableBitmapEx project here - http://writeablebitmapex.codeplex.com/ It is discussed here - WinRT Loading an Image into a Byte array... from the answer...
Basically you need to load the image into a WriteableBitmap, then access its pixel buffer by calling PixelBuffer.AsStream().
回答2:
All you need is:
- BitmapDecoder.GetPixelDataAsync()
- PixelDataProvider.DetachPixelData()
And then you have a byte array of BitmapImage!
See this how to: http://msdn.microsoft.com/en-us/library/windows/apps/xaml/jj709939.aspx
来源：https://stackoverflow.com/questions/12963508/bitmapimage-to-byte-windows-8-metro-winrt