SDL_Init

Use this function to initialize the SDL library. This must be called before using any other SDL function.

Syntax

int SDL_Init(Uint32 flags)

Function Parameters

Return Value

Returns 0 on success or a negative error code on failure; call SDL_GetError() for more information.

Code Examples

#include "SDL.h"
#include <stdio.h> /* for fprintf() */
#include <stdlib.h> /* for atexit() */

int main(int argc, char** argv) {
    if (SDL_Init(SDL_INIT_VIDEO|SDL_INIT_AUDIO) != 0) {
        fprintf(stderr,
                "Unable to initialize SDL: %s\n",
                SDL_GetError()
               );
        return 1;
    }

    /* ... */

    SDL_Quit();

    return 0;
}

Remarks

SDL_Init() simply forwards to calling SDL_InitSubSystem(). Therefore, the two may be used interchangeably. Though for readability of your code SDL_InitSubSystem() might be preferred.

The File I/O and Threading subsystems are initialized by default. You must specifically initialize other subsystems if you use them in your application.

flags may be any of the following OR'd together:

If you want to initialize subsystems separately you would call SDL_Init(0) followed by SDL_InitSubSystem() with the desired subsystem flag.

Related Functions

• SDL_InitSubSystem

• SDL_Quit

• SDL_SetMainReady

• SDL_WasInit

CategoryAPI, CategoryInit