vga_getdefaultmode(3) [centos man page]

vga_getdefaultmode(3)						Svgalib User Manual					     vga_getdefaultmode(3)

NAME

       vga_getdefaultmode - returns the default graphics mode number

SYNOPSIS

       #include <vga.h>

       int vga_getdefaultmode(void);

DESCRIPTION

       Returns	the default graphics mode number from the SVGALIB_DEFAULT_MODE environment variable; -1 if undefined. The environment variable can
       either be a mode number or a mode name. See vga_setmode(3) for a list of predefined return values and their meaning. The mode  names  which
       can be used in the environment are those used by vga_getmodename(3) and vga_getmodenumber(3).

       Whenever  your  application has no special need for a given mode you should always try to honour this setting for consistency among svgalib
       applications.

SEE ALSO

       svgalib(7), vgagl(7), libvga.config(5), vgatest(6), vga_hasmode(3), vga_modeinfo(3), vga_setmode(3),  vga_getcurrentmode(3),  vga_lastmode-
       number(3), vga_getmodename(3), vga_getmodenumber(3)

AUTHOR

       This manual page was edited by Michael Weller <eowmob@exp-math.uni-essen.de>. The exact source of the referenced function as well as of the
       original documentation is unknown.

       It is very likely that both are at least to some extent are due to Harm Hanemaayer <H.Hanemaayer@inter.nl.net>.

       Occasionally this might be wrong. I hereby asked to be excused by the original author and will happily accept any additions or  corrections
       to this first version of the svgalib manual.

Svgalib 1.3.0							   8 April 1998 					     vga_getdefaultmode(3)

vga_getmodenumber(3)						Svgalib User Manual					      vga_getmodenumber(3)

NAME

       vga_getmodenumber - return a number for the given video mode

SYNOPSIS

       #include <vga.h>

       int vga_getmodenumber(char *name);

DESCRIPTION

       The  function  parses  *name  and  tries to find a videomode corresponding on it.  *name is parsed case insensitive and should be either an
       integer string just giving a mode number or consist of a capital G followed by the amount of x pixels, followed by a lower case x, followed
       by the amount of y pixels, followed by a lower case x.  Finally the number of different colors is appended. Here the shortcuts 32K,64K,16M,
       and 16M4 are used for 32768, 65536, and 16777216 are used. The last refers also to 16777216 which are store in  4  bytes  (highest  address
       byte unused) for easier screen access.

       For  unsupported values or the string "PROMPT" the value -1 is returned. Also a irritating error message is printed to stdout. This is used
       during parsing the SVGALIB_DEFAULT_MODE environment variable. Probably it should not be used for anything else.

EXAMPLE

       vga_getmodenumber("G640x480x256") returns 10.

SEE ALSO

       svgalib(7), vgagl(7), libvga.config(5), vgatest(6), vga_hasmode(3), vga_modeinfo(3), vga_setmode(3), vga_lastmodenumber(3), vga_getcurrent-
       mode(3), vga_getdefaultmode(3), vga_getmodename(3)

AUTHOR

       This manual page was edited by Michael Weller <eowmob@exp-math.uni-essen.de>. The exact source of the referenced function as well as of the
       original documentation is unknown.

       It is very likely that both are at least to some extent are due to Harm Hanemaayer <H.Hanemaayer@inter.nl.net>.

       Occasionally this might be wrong. I hereby asked to be excused by the original author and will happily accept any additions or  corrections
       to this first version of the svgalib manual.

Svgalib 1.3.0							   8 April 1998 					      vga_getmodenumber(3)