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SDL_VideoModeOK(3) SDL API Reference SDL_VideoModeOK(3)

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

#include "SDL.h"
int SDL_VideoModeOK(int width, int height, int bpp, Uint32 flags);

SDL_VideoModeOK returns 0 if the requested mode is not supported under any bit depth, or returns the bits-per-pixel of the closest available 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

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); . .

SDL_SetVideoMode, SDL_GetVideoInfo
Tue 11 Sep 2001, 23:01 SDL

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