get_gfx_mode_list - Obtains a list of available video modes. Allegro game programming library.

       Attempts  to  create  a list of all the supported video modes for a certain graphics driver, made up from
       the GFX_MODE_LIST structure, which has the following definition:

          typedef struct GFX_MODE_LIST
          {
             int num_modes;
             GFX_MODE *mode;
          } GFX_MODE_LIST;

       The mode entry  points to the actual list of video modes.

          typedef struct GFX_MODE
          {
             int width, height, bpp;
          } GFX_MODE;

       This list of video modes is terminated with an { 0, 0, 0 } entry.

       Note that the card parameter must refer to a _real_ driver. This function fails  if  you  pass  GFX_SAFE,
       GFX_AUTODETECT, or any other "magic" driver.

       get_gfx_mode_list - Obtains a list of available video modes. Allegro game programming library.

       Returns  a  pointer  to  a  list  structure of the type GFX_MODE_LIST or NULL if the request could not be
       satisfied.

destroy_gfx_mode_list(3alleg4), set_gfx_mode(3alleg4), set_color_depth(3alleg4)

Allegro                                           version 4.4.3                       get_gfx_mode_list(3alleg4)

#include<allegro.h>GFX_MODE_LIST*get_gfx_mode_list(intcard);