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# SGI IRIX Specific Services

The modules described in this chapter provide interfaces to features that are unique to SGI’s IRIX operating system (versions 4 and 5).

- `al` — Audio functions on the SGI
  - Configuration Objects
  - Port Objects
- `AL` — Constants used with the `al` module

- `cd` — CD-ROM access on SGI systems
  - Player Objects
  - Parser Objects

- `fl` — FORMS library for graphical user interfaces
  - Functions Defined in Module `fl`
  - Form Objects
  - FORMS Objects
- `FL` — Constants used with the `fl` module
- `flp` — Functions for loading stored FORMS designs

- `fm` — Font Manager interface

- `gl` — Graphics Library interface
- `DEVICE` — Constants used with the `gl` module
- `GL` — Constants used with the `gl` module

- `imgfile` — Support for SGI imglib files

- `jpeg` — Read and write JPEG files

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