get_gfx_mode_type

get_gfx_mode_type(3alleg4)       Allegro manual       get_gfx_mode_type(3alleg4)



NAME
       get_gfx_mode_type - Retrieves type information for a specific graphics
       card. Allegro game programming library.

SYNOPSIS
       #include <allegro.h>


       int get_gfx_mode_type(int graphics_card);

DESCRIPTION
       This function lets you determine the types of operating modes that a
       specific graphics card driver operates in. It will tell you whether it is
       a windowed, fullscreen, definitely windowed or fullscreen, and/or a magic
       driver.

       The value returned is a bitfield consisting of these fields:

       GFX_TYPE_UNKNOWN GFX_TYPE_WINDOWED GFX_TYPE_FULLSCREEN GFX_TYPE_DEFINITE
       GFX_TYPE_MAGIC


       The return value will only be equivalent to GFX_TYPE_UNKNOWN when it is a
       driver unrecognized on that platform, or it is a bogus value. Test for
       the other types by using a bitwise AND. If the driver is windowed or
       fullscreen, it will also have the definite flag set.  For example,

          int gfx_type = get_gfx_mode_type(GFX_AUTODETECT_WINDOWED);

       gfx_type would have the GFX_TYPE_WINDOWED, GFX_TYPE_DEFINITE, and
       GFX_TYPE_MAGIC flags set.

       Allegro needs to be initialized first.

       Example:

          /* Accept the use of only windowed drivers in our selection dialog */
          int accept_windowed(int card , int w , int h , int color_depth)
          {
             if (get_gfx_mode_type(card) & GFX_TYPE_WINDOWED)
                return 0;
             return 1;
          }

          /* In main: */
          gfx_mode_select_filter(&card, &w, &h, &color_depth, accept_windowed);


RETURN VALUE
       Returns a bitfield describing the graphics mode type.


SEE ALSO
       gfx_mode_select_filter(3alleg4), get_gfx_mode(3alleg4),
       set_gfx_mode(3alleg4), is_windowed_mode(3alleg4)



Allegro                           version 4.4.3       get_gfx_mode_type(3alleg4)