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Graphics Programming

Graphics are not built into the Limbo language. Graphics in Limbo are handled through the Inferno Reference API. Inferno graphics functions are packaged in three distinct interface modules, the Draw module, the Prefab module, and the Limbo/Tk modules.

The Draw module (draw.m) provides basic raster graphics and windowing functions. These functions provide primitives for graphics functions in the Prefab module (prefab.m) and the Limbo/Tk modules
The Prefab module (prefab.m) provides graphics functions specifically designed for use with interactive TV applications. It includes support for IR (infrared) remote control devices.
The Limbo/Tk modules (tk.m and wmlib.m) provides graphics functions for desktop-like GUI applications.

This section introduces each of these and gives three simple examples and basic explanation to provide a flavor of using each type of interface module. The examples are based on the simple console Greet program from Getting Started in Chapter 2.

For detailed description of the data and functions in the graphics modules, see the Inferno Reference Manual.

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