Simple SDL Window

main.cpp

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

int w = 800;
int h = 600;
SDL_Window *window = NULL;
SDL_Surface *screenSurface = NULL;

void mainLoop();
void initSDL();
void cleanUp();

int main(int argc, char *argv[])
{
    initSDL();
    mainLoop();
    cleanUp();
    return 0;
}

void initSDL()
{
    if (SDL_Init(SDL_INIT_VIDEO) < 0)
    {
        printf("Could not create SDL Window");
        exit(-1);
    }
    else
    {
        window = SDL_CreateWindow("Main Window", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, w, h, SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE);
        if (window == NULL)
        {
            printf("Could not create SDL Window");
            exit(-1);
        }
    }
}

void mainLoop()
{
    bool running = true;
    while (running)
    {
        SDL_Event event;
        while (SDL_PollEvent(&event))
        {
            switch (event.type)
            {
            case SDL_QUIT:
                running = false;
                break;
            default:
                break;
            }
        }
    }
}

void cleanUp()
{
    SDL_DestroyWindow(window);
    SDL_Quit();
}