Build an Image HotSpot Designer in Silverlight

If you have used Amazon.com or Flickr you may be familiar with Image Hotspots or Hot Regions. This is a region on an image where clicking or hovering the mouse reveals some additional information in a callout or popup. By providing extra information your photographs become more interactive and appealing. In this article we'll build a Hotspot Designer that allows the user to draw Hot Regions on an image, a preview and display control, and a way to save their work.