API

The Allegro documentation comes in the source package. Here, we host some popular versions of the generated documentation, and provide an online browseable version, too.

File format	Allegro 4.x	Allegro 5.0	Allegro 5.1
Online HTML	4.4.0	5.0.9	5.1.x (GIT)
		older versions
Compiled HTML format (CHM)	4.2.1 (913 KiB)
PDF format	4.2.1 (2769 KiB)	-	GIT
PostScript gzipped format	4.2.1 (536 KiB)

Online Documentation and Source Browser -
Štěpán Roh hosts many versions of the Allegro manuals and source code on his web site.

Allegro.cc's manuals -
Matthew Leverton hosts the Allegro manuals, with a different style and integration with the Allegro.cc forums.

Apart from Allegro's manual, there is also a tutorial section with links to contributed documentation. And there are also written paper books which teach Allegro. As of now, these mainly discuss Allegro 4.