I have created an Xaml Image object programatically from byte array & set its width height alignments. Setting width & height is important as I am fitting small image in bigger writableBitmap & aligning it in Center too. Image img = new Image(); img.Height = x; img.Width = y; img.Source = inSource; img.HorizontalAlignment = HorizontalAlignment.Center; In Phone 8.0 I did: RotateTransform transform = new RotateTransform(); WritableBitmap bitmap = new WriteableBitmap(img transform); // I want this step in UWP. How to do? But In UWP I am stuck as this writableBitmap constructor is not there where I can apply transformation on UI element like Image. I hope I am clear in my query. Please suggest me the way I can do this. What I have tried: I have moved the WritableBitmap to bigger Writablebitmap aligning it to center(using Maths). Then using WriteBitmapEx rotating the image to x angle (75 45 etc.). But it is corrupting the image. Any help will be appreciated.

Answer

How to convert Xaml Image to WriteableBitmap after rotation?

Gourav Singhal

249

I have created an Xaml "Image" object programatically from byte array & set its width, height, alignments. Setting width & height is important as I am fitting small image in bigger writableBitmap & aligning it in Center too.

Image img = new Image();
img.Height = x;
img.Width = y;
img.Source = inSource;
img.HorizontalAlignment = HorizontalAlignment.Center;

In Phone 8.0, I did:

RotateTransform transform = new RotateTransform();
WritableBitmap bitmap = new WriteableBitmap(img, transform);// I want this step in UWP. How to do?

But, In UWP I am stuck as this writableBitmap constructor is not there where I can apply transformation on UI element like Image. I hope I am clear in my query. Please suggest me the way I can do this.

What I have tried: I have moved the WritableBitmap to bigger Writablebitmap aligning it to center(using Maths). Then using WriteBitmapEx, rotating the image to x angle (75, 45 etc.). But it is corrupting the image.

Any help will be appreciated.