MGR bitmap

File Format
Name	MGR bitmap
Ontology	Electronic File Formats Graphics MGR bitmap
Released	~1984

Overview

MGR bitmap is an image file format associated with the ManaGeR (or MGR) windowing system.

Identification

Apparently, MGR bitmap files do not conventionally have a filename extension.

Files begin with a two-byte ASCII signature:

"yz" = modern format, 8-bit aligned
"yx" = modern format, squeezed
"xz" = old format, 1-bit, 32-bit aligned
"zz" = old format, 1-bit, 16-bit aligned
"zy" = old format, 8-bit, 16-bit aligned

Software

• Netpbm: mgrtopbm, pbmtomgr
• MGR source code

Sample files

• ftp://sunsite.unc.edu/pub/linux/apps/MGR/mgrusr-0.69.tgz → icons/*

Links

• Wikipedia: ManaGeR