I am now working on the next version of Cropper. It is still a couple weeks from release but I thought I would release the visualizer I created and have been using during development. The next version of Cropper has the effect plug-ins I mentioned a while back plus support for transparency in non-rectangular form captures and effects.

I needed a visualizer to easily watch the effects as they are applied. Since Cropper will support transparency in the non-client areas of forms and in effects such as drop shadows, I needed the visualizer to indicate the transparent areas of the capture. This visualizer has the standard checkerboard pattern to distinguish the transparent areas of a capture from areas that could otherwise be the same color as the background.  


Bitmap Image Debugger Visualizer Form

Download assembly and source