SDL_VideoInit
Use this function to initialize the video subsystem, optionally specifying a video driver.
Contents
Syntax
int SDL_VideoInit(const char* driver_name,
Uint32 flags)
Function Parameters
driver_name |
initialize a specific driver by name, or NULL for the default video driver |
flags |
this should be either SDL_INIT_EVENTTHREAD or 0. See SDL_Init() for the meaning of SDL_INIT_EVENTTHREAD. |
Return Value
Returns 0 on success or a negative error code on failure; call SDL_GetError() for more information.
Code Examples
#include "SDL.h"
SDL_bool videoinit = SDL_FALSE;
void OnQuit() {
if (videoinit)
SDL_VideoQuit();
SDL_Quit();
}
int main(int argc, char** argv) {
if (SDL_Init(0) != 0) {
printf("Error initializing SDL: %s\n", SDL_GetError());
return 1;
}
atexit(OnQuit);
if (SDL_VideoInit(NULL, 0) != 0) {
printf("Error initializing SDL video: %s\n", SDL_GetError());
return 2;
}
videoinit = SDL_TRUE;
/* ... */
return 0;
}
Remarks
This function initializes the video subsystem, setting up a connection to the window manager, etc, and determines the available display modes and pixel formats, but does not initialize a window or graphics mode.
If you use this function and you haven't used the SDL_INIT_VIDEO flag with either SDL_Init() or SDL_InitSubSystem(), you should call SDL_VideoQuit() before calling SDL_Quit().
It is safe to call this function multiple times. SDL_VideoInit() will call SDL_VideoQuit() itself if the video subsystem has already been initialized.
You can use SDL_GetNumVideoDrivers() and SDL_GetVideoDriver() to find a specific driver_name.
