SDL2 Event Handling

1#include <SDL.h>
2
3#include <iostream>
4
5int main(int argc, char* argv[]) {
6  SDL_Init(SDL_INIT_VIDEO);
7
8  SDL_Window* window{SDL_CreateWindow(
9    "Event Handling",
10    SDL_WINDOWPOS_UNDEFINED,
11    SDL_WINDOWPOS_UNDEFINED,
12    800, 600, SDL_WINDOW_SHOWN
13  )};
14
15  SDL_Event event;
16  bool quit = false;
17  while (!quit) {
18    while (SDL_PollEvent(&event)) {
19      switch (event.type) {
20        case SDL_QUIT:
21          quit = true;
22          break;
23        case SDL_KEYDOWN:
24          if (event.key.keysym.sym
25            == SDLK_ESCAPE) {
26            quit = true;
27          } else {
28            std::cout << "Key pressed: "
29              << SDL_GetKeyName(
30                event.key.keysym.sym) << '\n';
31          }
32          break;
33        case SDL_MOUSEBUTTONDOWN:
34          std::cout << "Mouse button pressed: "
35            << event.button.button << "\n";
36          break;
37        case SDL_MOUSEMOTION:
38          std::cout << "Mouse position: ("
39            << event.motion.x << ", "
40            << event.motion.y << ")\n";
41          break;
42      }
43    }
44  }
45
46  SDL_DestroyWindow(window);
47  SDL_Quit();
48
49  return 0;
50}