index.c

#include <SDL2/SDL.h>
#include <iostream>

int main() {
    if(SDL_Init(SDL_INIT_VIDEO) < 0) {
        std::cout << "Failed to initialize the SDL2 library\n";
        return -1;
    }

    SDL_Window *window = SDL_CreateWindow("SDL2 Window",
                                          SDL_WINDOWPOS_CENTERED,
                                          SDL_WINDOWPOS_CENTERED,
                                          680, 480,
                                          0);

    if(!window) {
        std::cout << "Failed to create window\n";
        return -1;
    }

    SDL_Surface *window_surface = SDL_GetWindowSurface(window);

    if(!window_surface) {
        std::cout << "Failed to get the surface from the window\n";
        return -1;
    }

	bool keep_window_open = true;
	
	// Loop que mantem a janela aberta
	while(keep_window_open) {
		SDL_Event e;
		while(SDL_PollEvent(&e) > 0) {
			// Possibilita o SDL fechar a partir do 'x'
			switch(e.type) {
				case SDL_QUIT:
					keep_window_open = false;
					break;
			}
			SDL_UpdateWindowSurface(window);
		}
	}
}