Equivalency to TransparencyKey in WPF

Question

In Win Form, we can create non-rectangular forms by creating a bitmap that have a background color like blue. So, we can set it to background image of Win Form and with change TransparencyKey option to blue, we have a shaped-window.

So, my question is What is the equivalency to TransparencyKey in WPF that does like Win Form's TransparencyKey?

Thanks for your attention :)

Answer 1

There is no equivalent.
Just use an image with transparent areas (so it has to be a PNG or GIF), set the WindowStyle to None, set the window's background to Transparent, and set AllowTransparency to true.

Transparent areas will not be clickable.