BitmapImage returns 0 for PixelWidth and PixelHeight

Question

I'm trying to do a super simple thing : get the size of an image.

So I create my BitmapImage but I'm getting 0 when I try to access the PixelWidth and PixelHeight.

How can I accomplish that please?

EDIT: (added sample code)

I'm just doing:

var baseUri = new Uri("ms-appx:///");
var bitmapImage = new BitmapImage(new Uri(baseUri, "Assets/Logo.png"));

MyImage.Source = bitmapImage;

Debug.WriteLine("Width: " + bitmapImage.PixelWidth + " Height: " + bitmapImage.PixelHeight);

In the console, I get:

Width: 0 Height: 0

Answer 1

When you want to use the image properties after setting the source for your BitmapImage, you normally have to write an event handler that will execute on ImageOpened.

Also remember that ImageOpened only fires if the image is downloaded and decoded (i.e. using Image.Source).

var bitmapImage = new BitmapImage(uri);
bitmapImage.ImageOpened += (sender, e) => 
{
    Debug.WriteLine("Width: {0}, Height: {1}",
        bitmapImage.PixelWidth, bitmapImage.PixelHeight);
};
image.Source = bitmapImage;