sdl2 test app by @miguelmartin75 with SDL_Renderer instead of OpenGL (and in C)

SDL2Renderer.c

#include <stdio.h>

#include <SDL.h>
#include <SDL_render.h>

int main(void)
{
	// Initialize SDL with video
	SDL_Init(SDL_INIT_VIDEO);

	// Create a window and a renderer
	SDL_Window* window;
	SDL_Renderer *renderer;
	SDL_CreateWindowAndRenderer(640, 480, 0, &window, &renderer);

	// if failed to create a window
	if(!window)
	{
		// we'll print an error message and exit
		fputs("Error failed to create window!\n", stderr);
		return 1;
	}

	// if we failed to create a renderer
	if(!renderer)
	{
		// we'll print out an error message and exit
		fputs("Error failed to create a renderer!\n", stderr);
		return 2;
	}

	SDL_Event event;	// used to store any events from the OS
	int running = 1;	// used to determine if we're running the game

	SDL_SetRenderDrawColor(renderer, 255, 0, 0, SDL_ALPHA_OPAQUE);
	while(running)
	{
		// poll for events from SDL
		while(SDL_PollEvent(&event))
		{
			// determine if the user still wants to have the window open
			// (this basically checks if the user has pressed 'X')
			running = event.type != SDL_QUIT;
		}

		// buffer is invalidated every frame, clear it
		SDL_RenderClear(renderer);
		// update the screen
		SDL_RenderPresent(renderer);
	}


	// Destroy the renderer
	SDL_DestroyRenderer(renderer);

	// Destroy the window
	SDL_DestroyWindow(window);

	// And quit SDL
	SDL_Quit();

	return 0;
}