How to convert Image to byte array in windows 8.1 Store apps?

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How to convert image to byte array in windows 8.1 store apps developing.

present i am using this

MemoryStream ms = new MemoryStream();
WriteableBitmap wb = new WriteableBitmap(myimage);
wb.SaveJpeg(ms, myimage.PixelWidth, myimage.PixelHeight, 0, 100);
byte [] imageBytes = ms.ToArray();

The above code is for windows phone 8.1 but i want it for windows 8.1 store app.
, How to convert please help me...

thanks.

Posted 17-Nov-14 20:49pm

SureshMarepalli

Updated 18-Nov-14 0:26am

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BillWoodruff · Answer 1 · 2014-11-17T21:43:00

Solution 1

While I do not develop Win Store apps, a quick look at the documentation for 'SaveJpeg suggests you are missing arguments: [^].

C#

SaveJpeg(
this WriteableBitmap bitmap,
Stream targetStream,
int targetWidth,
int targetHeight,
int orientation,
int quality
)

It also "jumps out at me" that you create a memory stream and then do not do anything to get the image data into the stream.

Typical code to get Image contents as byte[] in System.Drawing.Image:

C#

MemoryStream ms = new MemoryStream();
YourImage.Save(ms,System.Drawing.Imaging.ImageFormat.Jpeg);
byte[] bAry = ms.ToArray();

Posted 17-Nov-14 21:43pm

BillWoodruff

Comments

SureshMarepalli 18-Nov-14 3:44am

thanks for your answer , but in windows 8.1 system.drawing is not there.

BillWoodruff 18-Nov-14 8:15am

Yes, I showed the code for System.Drawing.Imaging knowing it was not in 8.1 for store apps, just as an example of what code looks like that actually puts some information in a MemoryStream. Sorry if that was confusing.

However, 'SaveJpeg is an 8.1 store app Extension method, and if you don't have the arguments correct, then that's one reason your code won't work.

cheers, Bill