1allegro_error(3)                Allegro manual                allegro_error(3)
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NAME

6       allegro_error - Stores the last Allegro error message.
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SYNOPSIS

9       #include <allegro.h>
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11
12       extern char allegro_error[ALLEGRO_ERROR_SIZE];
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DESCRIPTION

15       Text string used by set_gfx_mode(), install_sound() and other functions
16       to report error messages. If they fail and you want to  tell  the  user
17       why,  this is the place to look for a description of the problem. Exam‐
18       ple:
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20          void abort_on_error(const char *message)
21          {
22             if (screen != NULL)
23                set_gfx_mode(GFX_TEXT, 0, 0, 0, 0);
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25             allegro_message("%s.\nLast Allegro error `%s'\n",
26                             message, allegro_error);
27             exit(-1);
28          }
29          ...
30             if (some_allegro_function() == ERROR_CODE)
31                abort_on_error("Error calling some function!");
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SEE ALSO

34       set_gfx_mode(3), install_sound(3)
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38Allegro                          version 4.2.3                allegro_error(3)
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