Handling Window Resize Events in SDL2

1#include <SDL.h>
2#include <iostream>
3
4int main(int argc, char** argv) {
5  SDL_Init(SDL_INIT_VIDEO);
6  SDL_Window* window = SDL_CreateWindow(
7    "Resize Example", 100, 100, 640, 480,
8    SDL_WINDOW_RESIZABLE);
9  SDL_Renderer* renderer = SDL_CreateRenderer(
10    window, -1, SDL_RENDERER_ACCELERATED);
11
12  bool running = true;
13  SDL_Event event;
14  while (running) {
15    while (SDL_PollEvent(&event)) {
16      if (event.type == SDL_QUIT)
17        running = false;
18      if (event.type == SDL_WINDOWEVENT &&
19        event.window.event ==
20        SDL_WINDOWEVENT_RESIZED) {
21        std::cout << "Window resized to "
22          << event.window.data1 << "x"
23          << event.window.data2 << "\n";
24        SDL_RenderSetLogicalSize(renderer,
25          event.window.data1, event.window.data2);
26      }
27    }
28
29    SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255);
30    SDL_RenderClear(renderer);
31    // Rendering code here
32    SDL_RenderPresent(renderer);
33  }
34
35  SDL_DestroyRenderer(renderer);
36  SDL_DestroyWindow(window);
37  SDL_Quit();
38  return 0;
39}