os_type - Stores the detected type of the OS. Allegro game programming library.
#include <allegro.h>
extern int os_type;
Set by allegro_init() to one of the values:
OSTYPE_UNKNOWN - unknown, or regular MSDOS
OSTYPE_WIN3 - Windows 3.1 or earlier
OSTYPE_WIN95 - Windows 95
OSTYPE_WIN98 - Windows 98
OSTYPE_WINME - Windows ME
OSTYPE_WINNT - Windows NT
OSTYPE_WIN2000 - Windows 2000
OSTYPE_WINXP - Windows XP
OSTYPE_WIN2003 - Windows 2003
OSTYPE_WINVISTA - Windows Vista
OSTYPE_OS2 - OS/2
OSTYPE_WARP - OS/2 Warp 3
OSTYPE_DOSEMU - Linux DOSEMU
OSTYPE_OPENDOS - Caldera OpenDOS
OSTYPE_LINUX - Linux
OSTYPE_SUNOS - SunOS/Solaris
OSTYPE_FREEBSD - FreeBSD
OSTYPE_NETBSD - NetBSD
OSTYPE_IRIX - IRIX
OSTYPE_DARWIN - Darwin
OSTYPE_QNX - QNX
OSTYPE_UNIX - Unknown Unix variant
OSTYPE_BEOS - BeOS
OSTYPE_MACOS - MacOS
OSTYPE_MACOSX - MacOS X
allegro_init(3), os_version(3), os_multitasking(3)