allegro_error - Man Page

#include <allegro.h>

extern char allegro_error[ALLEGRO_ERROR_SIZE];

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!");

set_gfx_mode(3), install_sound(3)

ex12bit(3), ex3buf(3), ex3d(3), exaccel(3), exalpha(3), exbitmap(3), exblend(3), excamera(3), excolmap(3), excustom(3), exdata(3), exdbuf(3), exexedat(3), exflame(3), exflip(3), exfont(3), exgui(3), exhello(3), exjoy(3), exkeys(3), exlights(3), exmem(3), exmidi(3), exmouse(3), expackf(3), expal(3), expat(3), exquat(3), exrgbhsv(3), exsample(3), exscale(3), exscn3d(3), exshade(3), exspline(3), exsprite(3), exstars(3), exstream(3), exswitch(3), exsyscur(3), extimer(3), extrans(3), extrans2(3), exunicod(3), exupdate(3), exxfade(3), exzbuf(3), install_sound(3), set_gfx_mode(3), ustrerror(3).