.TH "libcaca-env" 3caca "Thu Apr 18 2024 22:47:49" "Version 0.99.beta20" "libcaca" \" -*- nroff -*-
.ad l
.nh
.SH NAME
libcaca-env \- Libcaca environment variables 
.PP
Some environment variables can be used to change the behaviour of \fIlibcaca\fP without having to modify the program which uses it\&. These variables are:
.PP
.PD 0
.IP "\(bu" 1
\fBCACA_DRIVER:\fP set the backend video driver\&. In order of preference:
.IP "  \(bu" 4
\fRconio\fP uses the DOS conio\&.h interface\&.
.IP "  \(bu" 4
\fRncurses\fP uses the ncurses library\&.
.IP "  \(bu" 4
\fRslang\fP uses the S-Lang library\&.
.IP "  \(bu" 4
\fRx11\fP uses the native X11 driver\&.
.IP "  \(bu" 4
\fRgl\fP uses freeglut and opengl libraries\&.
.IP "  \(bu" 4
\fRraw\fP outputs to the standard output instead of rendering the canvas\&. This is can be used together with cacaserver\&.
.PP

.PP
.PD 0
.IP "\(bu" 1
\fBCACA_GEOMETRY:\fP set the video display size\&. The format of this variable must be \fRXxY\fP, with \fRX\fP and \fRY\fP being integer values\&. This option currently works with the raw, X11 and GL drivers\&.
.PP
.PD 0
.IP "\(bu" 1
\fBCACA_FONT:\fP set the rendered font\&. The format of this variable is implementation dependent, but since it currently only works with the X11 driver, an X11 font name such as \fRfixed\fP or \fR5x7\fP is expected\&. 
.PP