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RedHat 9 (Linux i386) - man page for sdl_listmodes (redhat section 3)

SDL_ListModes(3)			SDL API Reference			 SDL_ListModes(3)

NAME
       SDL_ListModes-  Returns a pointer to an array of available screen dimensions for the given
       format and video flags

SYNOPSIS
       #include "SDL.h"

       SDL_Rect **SDL_ListModes(SDL_PixelFormat *format, Uint32 flags);

DESCRIPTION
       Return a pointer to an array of available screen dimensions for the given format and video
       flags, sorted largest to smallest. Returns NULL if there are no dimensions available for a
       particular format, or -1 if any dimension is okay for the given format.

       If  format  is  NULL,   the   mode   list   will   be   for   the   format   returned   by
       SDL_GetVideoInfo()->vfmt.  The flag parameter is an OR'd combination of surface flags. The
       flags are the same as those used SDL_SetVideoMode and they play a strong role in  deciding
       what  modes  are  valid. For instance, if you pass SDL_HWSURFACE as a flag only modes that
       support hardware video surfaces will be returned.

EXAMPLE
       SDL_Rect **modes;
       int i;
       .
       .
       .

       /* Get available fullscreen/hardware modes */
       modes=SDL_ListModes(NULL, SDL_FULLSCREEN|SDL_HWSURFACE);

       /* Check is there are any modes available */
       if(modes == (SDL_Rect **)0){
	 printf("No modes available!
       ");
	 exit(-1);
       }

       /* Check if or resolution is restricted */
       if(modes == (SDL_Rect **)-1){
	 printf("All resolutions available.
       ");
       }
       else{
	 /* Print valid modes */
	 printf("Available Modes
       ");
	 for(i=0;modes[i];++i)
	   printf("  %d x %d
       ", modes[i]->w, modes[i]->h);
       }
       .
       .

SEE ALSO
       SDL_SetVideoMode, SDL_GetVideoInfo, SDL_Rect, SDL_PixelFormat

SDL				      Tue 11 Sep 2001, 23:01			 SDL_ListModes(3)


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