8 The Canvas

The canvas ^[7] is the drawing surface of the Bifrost graphics system and the connection between Bifrost and the display device. The display device is typically a screen or a window in a window system. In a window system the canvas is a drawing surface inside a window. How the canvas is made a part of a window (borders, scroll bars, close box, etc.) depends on the specific system.

The canvas is very similar to the canvas of an artist, but has properties not comparable to the canvas of an artists, described in the next sections.