#include <SDL2/SDL.h>

int main() {
  SDL_Init(SDL_INIT_VIDEO);

  SDL_Window *window;
  SDL_Renderer *renderer;
  SDL_CreateWindowAndRenderer(300, 300, 0, &window, &renderer);

  SDL_SetRenderDrawColor(renderer, /* RGBA: green */ 0x00, 0x80, 0x00, 0xFF);
  SDL_Rect rect = {.x = 10, .y = 10, .w = 150, .h = 100};
  SDL_RenderFillRect(renderer, &rect);
  SDL_RenderPresent(renderer);

  while (1) {
    SDL_Event event;
    SDL_PollEvent(&event);
    if (event.type == SDL_QUIT) {
      break;
    }
  }

  SDL_DestroyRenderer(renderer);
  SDL_DestroyWindow(window);

  SDL_Quit();
}