Taking Screengrabs

The easiest way to document your work is by taking a screenshot or making a video.

Screenshot Images

You can take a screenshot of your application with an external tool or from within the app itself. You can then use PhotoshopGimp, or any number of utilities to crop and adjust the image. All operating systems have a native screenshot function:

Another method is to save a frame directly from your application itself:

Screen-Grabbed Video

To record video of your app running, you will need a screen recording application:

(You could also save out a sequence of frames, and compile them into video later.) After you have your video, it might be nice to do some editing … consider Premiere, AfterEffects, FinalCut, iMovie, Windows Movie Maker, etc.