sdl_videomodeok(3) [centos man page]

SDL_VideoModeOK(3)						 SDL API Reference						SDL_VideoModeOK(3)

NAME

       SDL_VideoModeOK - Check to see if a particular video mode is supported.

SYNOPSIS

       #include "SDL.h"

       int SDL_VideoModeOK(int width, int height, int bpp, Uint32 flags);

DESCRIPTION

       SDL_VideoModeOK	returns  0 if the requested mode is not supported under any bit depth, or returns the bits-per-pixel of the closest avail-
       able mode with the given width, height and requested surface flags (see SDL_SetVideoMode).

       The bits-per-pixel value returned is only a suggested mode. You can usually request and bpp you want when setting the video  mode  and  SDL
       will emulate that color depth with a shadow video surface.

       The arguments to SDL_VideoModeOK are the same ones you would pass to SDL_SetVideoMode

EXAMPLE

       SDL_Surface *screen;
       Uint32 bpp;
       .
       .
       .
       printf("Checking mode 640x480@16bpp.
       ");
       bpp=SDL_VideoModeOK(640, 480, 16, SDL_HWSURFACE);

       if(!bpp){
	 printf("Mode not available.
       ");
	 exit(-1);
       }

       printf("SDL Recommends 640x480@%dbpp.
       ", bpp);
       screen=SDL_SetVideoMode(640, 480, bpp, SDL_HWSURFACE);
       .
       .

SEE ALSO

       SDL_SetVideoMode, SDL_GetVideoInfo

SDL
							      Tue 11 Sep 2001, 23:01						SDL_VideoModeOK(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)