How to get size of resized image?

Question

In UWP I have this Image

<Image Source="{Binding Bitmap}" Stretch="Uniform"/>

I want to get size of the resized Bitmap inside Image element in code behind, so I have this

Image img = ...;

var width = img.Width; // this gives size of Image element not the bitmap resized
                       // inside the Image.

So the original Bitmap could have size of 1920x1080 but Image element size is 300x200, so the bitmap inside it would have size of 300x112.5 given Stretch=Uniform . I want to get 300x112.5

Answer 1

使用ActualWidth / ActualHeight属性。