get_gfx_mode_list (3) Linux Manual Page

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

Synopsis

#include <allegro.h>

GFX_MODE_LIST *get_gfx_mode_list(int card);

Description

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.

Return Value

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

See Also

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