## Display Device Driver Reference for OS/2

[prev][next][parent][TOC]

### Glossary - M

M

memory device context - A logical description of a data destination that is a memory bit map. See also device context.

metafile - A file containing a series of attributes that set color, shape, and size, usually of a picture or a drawing. Using a program that can interpret these attributes, a user can view the assembled image.

metafile device context - A logical description of a data destination that is a metafile which is used for graphics interchange. See also device context.

mickey - A unit of measurement for physical mouse motion whose value depends on the mouse device driver that is currently loaded.

mixed character string - A string containing a mixture of one-byte and kanji or Hangeul (two-byte) characters.

mutex semaphore - (Mutual exclusion semaphore). A semaphore that enables threads to serialize their access to resources. Only the thread that currently owns the mutex semaphore can gain access to the resource, thus preventing one thread from interrupting operations being performed by another.