Get the SDL surface associated with the window.
Defined in <SDL3/SDL_video.h>
| window | the window to query |
Returns the surface associated with the window, or NULL on failure; call SDL_GetError() for more information.
A new surface will be created with the optimal format for the window, if necessary. This surface will be freed when the window is destroyed. Do not free this surface.
This surface will be invalidated if the window is resized. After resizing a window this function must be called again to return a valid surface.
You may not combine this with 3D or the rendering API on this window.
This function is affected by SDL_HINT_FRAMEBUFFER_ACCELERATION.
This function is available since SDL 3.0.0.
#include <SDL3/SDL.h> // include SDL header
int main(int argc, char* argv[])
{
SDL_Surface *screen; // even with SDL3, we can still bring ancient code back
SDL_Window *window;
SDL_Surface *image;
SDL_Init(SDL_INIT_VIDEO); // init video
// create the window like normal
window = SDL_CreateWindow("SDL3 Surface Example", 640, 480, 0);
// but instead of creating a renderer, we can draw directly to the screen
screen = SDL_GetWindowSurface(window);
// let's just show some classic code for reference
image = SDL_LoadBMP("box.bmp"); // loads image
SDL_BlitSurface(image, NULL, screen, NULL); // blit it to the screen
SDL_DestroySurface(image);
// this works just like SDL_Flip() in SDL 1.2
SDL_UpdateWindowSurface(window);
// show image for 2 seconds
SDL_Delay(2000);
SDL_DestroyWindow(window);
SDL_Quit();
return 0;
}