在WPF中绘制图像控件的Ontop

I am working on porting over an old WinForms project to WPF but have hit a brick wall. In this old WinForms project, I am using a picture control that is painting an image every second. Along with that, I have the controls 'Paint' event overridden to draw custom things on top of the image once it is already set.I am working on porting over an old WinForms pr