Handling Unsupported Display Modes

1#include <SDL.h>
2#include <iostream>
3
4int main(int argc, char* argv[]) {
5  SDL_Init(SDL_INIT_VIDEO);
6
7  // The mode we want to use
8  SDL_DisplayMode Desired{
9    0, 1920, 1080, 144, nullptr
10  };
11  SDL_DisplayMode Closest;
12
13  // Find the closest supported mode
14  if (SDL_GetClosestDisplayMode(
15    0, &Desired, &Closest)) {
16    std::cout << "Found mode: "
17      << Closest.w << "x" << Closest.h << " @ "
18      << Closest.refresh_rate << "Hz\n";
19  } else {
20    std::cout << "No compatible mode found\n";
21  }
22
23  SDL_Quit();
24  return 0;
25}

1#include <SDL.h>
2#include <iostream>
3
4int main(int argc, char* argv[]) {
5  SDL_Init(SDL_INIT_VIDEO);
6
7  SDL_Window* Window{SDL_CreateWindow(
8    "Window",
9    SDL_WINDOWPOS_UNDEFINED,
10    SDL_WINDOWPOS_UNDEFINED,
11    800, 600, 0
12  )};
13
14  // Try to set an unsupported mode
15  SDL_DisplayMode Unsupported{
16    0, 99999, 99999, 0, nullptr
17  }; 
18  
19  if (SDL_SetWindowDisplayMode(
20    Window, &Unsupported
21  ) < 0) {
22    std::cout << "Error: " << SDL_GetError();
23  }
24
25  SDL_DestroyWindow(Window);
26  SDL_Quit();
27  return 0;
28}