Sdl3 Example -

ball_x += velocity_x * delta_time; ball_y += velocity_y * delta_time;

// 6. Cleanup SDL_DestroyRenderer(renderer); SDL_DestroyWindow(window); SDL_Quit(); return 0; } 1. Initialization – SDL_Init(SDL_INIT_VIDEO) returns a boolean (true on success). Unlike SDL2’s integer return, SDL3 uses bool consistently. Error messages are retrieved via SDL_GetError() . We only initialize the video subsystem because we don’t need audio or game controllers. sdl3 example

// 5. Main loop while (running) { // Handle events while (SDL_PollEvent(&event)) { if (event.type == SDL_EVENT_QUIT) { running = false; } else if (event.type == SDL_EVENT_KEY_DOWN) { if (event.key.key == SDLK_ESCAPE) { running = false; } } } ball_x += velocity_x * delta_time; ball_y += velocity_y

// 3. Create a renderer for accelerated 2D SDL_Renderer* renderer = SDL_CreateRenderer(window, NULL, SDL_RENDERER_ACCELERATED); if (!renderer) { SDL_Log("SDL_CreateRenderer Error: %s", SDL_GetError()); SDL_DestroyWindow(window); SDL_Quit(); return 1; } Unlike SDL2’s integer return, SDL3 uses bool consistently