&dhucpackage; &dhsection;

&dhpackage;

displays GL extension and visual info

          &dhpackage; [-display display] [-visual id]

## DESCRIPTION

This manual page documents briefly the `&dhpackage;` command.

`&dhpackage;` is a small utility that displays all available visuals, aka. pixelformats, in an OpenGL system along with renderer version information. It shows a table of all the visuals that support OpenGL along with their capabilities. The format of the table is similar to that of glxinfo on Unix systems:

visual

- ~= pixel format descriptor

id

- = visual id (integer from 1 - max visuals)

tp

- = type (wn: window, pb: pbuffer, wp: window & pbuffer, bm: bitmap)

ac

- = acceleration (ge: generic, fu: full, no: none)

fm

- = format (i: integer, f: float, c: color index)

db

- = double buffer (y = yes)

dw

- = swap method (x: exchange, c: copy, u: undefined)

st

- = stereo (y = yes)

sz

- = total # bits

r

- = # bits of red

g

- = # bits of green

b

- = # bits of blue

a

- = # bits of alpha

axbf

- = # aux buffers

dpth

- = # bits of depth

stcl

- = # bits of stencil

## OPTIONS

A summary of options is included below.

`-h` `--help`

- Print help and exit.

`-display `display``

- Allows specifying an X display.

`-visual `id``

- Allows specifying a specific X visual.

## SEE ALSO

Xorg (1x), glewinfo (1)

## AUTHOR

This manual page was written by &dhusername; &dhemail; for the &debian; system (but may be used by others). Permission is granted to copy, distribute and/or modify this document under the terms of the &gnu; General Public License, Version 2 any later version published by the Free Software Foundation.

On Debian systems, the complete text of the GNU General Public License can be found in /usr/share/common-licenses/GPL.