View source for OS/2 Icon

{{FormatInfo
|formattype=electronic
|subcat=Graphics
|extensions={{ext|ico}}
|released=1988
}}
[[OS/2 Icon]] is an icon format related to OS/2 [[BMP]], and sometimes considered to be a member of the [[OS/2 BMP]] family of formats. It is very similar to [[OS/2 Pointer]] format. It is not particularly similar to [[ICO|Windows ICO]] format.

There is a color format, and a bi-level format. Multiple icons may be stored in the same file using the "bitmap array" ("BA") container format. The BA format may be used even when the file contains only one icon.

OS/2 icons are sometimes embedded as resources in OS/2 [[Linear Executable]] files.

== Identification ==
An OS/2 Icon file may begin with ASCII characters "<code>CI</code>" (color), or "<code>IC</code>" (bi-level). Or, it may begin with "<code>BA</code>", and have (usually) "<code>CI</code>" or "<code>IC</code>" at offset 14.

== Specifications ==
* [http://www.fileformat.info/format/os2bmp/spec/902d5c253f2a43ada39c2b81034f27fd/view.htm OS/2 Presentation Manager Programming Reference Guide, Vol III]

== Software ==
* [http://cd.textfiles.com/hobbesos29804/disk1/ICONS/XICON10.ZIP XIcon] (old software, untested)
* {{Deark}}
* [[Image Alchemy]]

== Sample files ==
=== BA/CI ===
(Most, but not all, of the icons at these locations use BA/CI format.)
* http://ftp.sunet.se/pub/OS2/hobbes/multimedia/images/icons/
* http://cd.textfiles.com/hobbesos29804/disk1/ICONS/
* http://cd.textfiles.com/hobbesos29503/ICONS/
* Some icon collections can be found at http://kimludvigsen.dk/os2/os2/graphx/index.php
* [http://cd.textfiles.com/640swstudio/OS2/ICONSOS2.ZIP ICONSOS2.ZIP]

=== BA/IC ===
* [http://cd.textfiles.com/hobbesos29804/disk2/SHELLUTL/YAOS181.ZIP YAOS181.ZIP] → yaos.ico

=== CI ===
* [http://cd.textfiles.com/hobbesos29804/disk1/ICONS/XICON10.ZIP XICON10.ZIP] → test/*.ico
* [http://cd.textfiles.com/hobbesos29804/disk1/ICONS/VISAGEIC.ZIP VISAGEIC.ZIP] → toolsfop.ico, cwicon.ico

=== IC ===
* [http://cd.textfiles.com/libris/GRAPHICS/WINDOWS/2736.ZIP 2736.ZIP] - The 288-byte ICO files are in IC format. For example MOUSE.ICO, PC2PC.ICO.

== Links ==
* {{EGFF|os2bmp|OS/2 Bitmap File Format Summary}}, from the [[Encyclopedia of Graphics File Formats]]

[[Category:IBM]]