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allegro_error(3)                Allegro manual                allegro_error(3)

NAME
       allegro_error - Stores the last Allegro error message.

SYNOPSIS
       #include <allegro.h>

       extern char allegro_error[ALLEGRO_ERROR_SIZE];

DESCRIPTION
       Text string used by set_gfx_mode(), install_sound() and other functions
       to report error messages. If they fail and you want to tell the user
       why, this is the place to look for a description of the problem.
       Example:

          void abort_on_error(const char *message)
          {
             if (screen != NULL)
                set_gfx_mode(GFX_TEXT, 0, 0, 0, 0);

             allegro_message("%s.\nLast Allegro error `%s'\n",
                             message, allegro_error);
             exit(-1);
          }
          ...
             if (some_allegro_function() == ERROR_CODE)
                abort_on_error("Error calling some function!");

SEE ALSO
       set_gfx_mode(3), install_sound(3)

Allegro                          version 4.4.2                allegro_error(3)