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

Screenshot

You can take a screenshot of your application with an external tool or from within the app itself.

All operating systems have a native screenshot function:

• Mac
• Windows
• Linux

You can also use Photoshop, Gimp, or any number of utilities. Another method is to save a frame from the application itself:

• OpenFrameworks: ofSaveScreen(string filename) & ofSaveFrame()
• Processing: saveFrame()
• Cinder: use app::Renderer::copyWindowSurface(Area &area) to copy the screen into a file, then save it manually
• PureData GEM: [pix_snap2tex]

Video

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

• QuickTime X: Mac 10.6
• Camtasia: Win, Mac
• ScreenFlow: Mac

After you have your video, it might be nice to do some editing .. try iMovie, Windows Movie Maker, etc