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_set_color(3)                   Allegro manual                   _set_color(3)

NAME
       _set_color - Inline version of set_color(). Allegro game programming
       library.

SYNOPSIS
       #include <allegro.h>

       void _set_color(int index, const RGB *p);

DESCRIPTION
       This is an inline version of set_color(), intended for use in the
       vertical retrace simulator callback function (retrace_proc, which is
       now deprecated).

       If you really must use _set_color from retrace_proc, note that it
       should only be used under DOS, in VGA mode 13h and mode-X. Some SVGA
       chipsets aren't VGA compatible (set_color() and set_palette() will use
       VESA calls on these cards, but _set_color() doesn't know about that).

SEE ALSO
       set_color(3), set_gfx_mode(3), ex3buf(3)

Allegro                          version 4.4.2                   _set_color(3)