---
name: "expal"
section: "3alleg4"
platform: "linux"
package: "allegro4-doc"
version: "2:4.4.3.1-5"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/expal/3alleg4"
---

# expal(3alleg4)

Palette effects and color cycling. Allegro game programming library.

## NAME

expal - Palette effects and color cycling. Allegro game programming library.

## SYNOPSIS

**#include \<allegro.h\>**

**Example expal**

## DESCRIPTION

This program demonstrates how to manipulate the palette. It draws a set of concentric circles onto the screen and animates them by cycling the palette.

## SEE ALSO

**END\_OF\_MAIN**(3alleg4), **PALETTE**(3alleg4), **RGB**(3alleg4), **SCREEN\_H**(3alleg4), **SCREEN\_W**(3alleg4), **acquire\_screen**(3alleg4), **allegro\_error**(3alleg4), **allegro\_init**(3alleg4), **allegro\_message**(3alleg4), **black\_palette**(3alleg4), **circlefill**(3alleg4), **install\_keyboard**(3alleg4), **install\_mouse**(3alleg4), **keypressed**(3alleg4), **release\_screen**(3alleg4), **screen**(3alleg4), **set\_gfx\_mode**(3alleg4), **set\_palette**(3alleg4), **show\_mouse**(3alleg4)