a menu containing all the available commands and settings
a toolbar containing the most used commands for capturing
a display area where the device drivers show the preview (video pictures in
the selected frame rate) and (if supported) the overlay (the pictures from the
source, in original frame rate).
a status bar showing messages from the device drivers.
Basically, there are two kinds of capture: (single) frames and video. Single
frames are captured as .DIB (device independent bitmap) files.
You can also simply capture single frames into an AVI by pressing the button: first click opens the file. All following mouse clicks will add the
current frame of the video into your AVI.
Continuous video is captured as a sequence of pictures in an .AVI file.