void SDL_SetWindowIcon(SDL_Window*  window,
                       SDL_Surface* icon)

// Using SDL2 to set a window icon

#include "SDL.h"

int main(int argc, char* argv[]){

  SDL_Event e;

  SDL_Init(SDL_INIT_VIDEO);   // Initialize SDL2

  SDL_Window *window = SDL_CreateWindow(    // Open a new window
    "SDL2 window icon demo", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 640, 480, SDL_WINDOW_RESIZABLE
  );

  SDL_Surface *surface;     // Declare an SDL_Surface to be filled in with pixel data from an image file
  Uint16 pixels[16*16] = {  // ...or with raw pixel data:
    0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff,
    0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff,
    0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff,
    0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff,
    0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff,
    0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff,
    0x0fff, 0x0aab, 0x0789, 0x0bcc, 0x0eee, 0x09aa, 0x099a, 0x0ddd,
    0x0fff, 0x0eee, 0x0899, 0x0fff, 0x0fff, 0x1fff, 0x0dde, 0x0dee,
    0x0fff, 0xabbc, 0xf779, 0x8cdd, 0x3fff, 0x9bbc, 0xaaab, 0x6fff,
    0x0fff, 0x3fff, 0xbaab, 0x0fff, 0x0fff, 0x6689, 0x6fff, 0x0dee,
    0xe678, 0xf134, 0x8abb, 0xf235, 0xf678, 0xf013, 0xf568, 0xf001,
    0xd889, 0x7abc, 0xf001, 0x0fff, 0x0fff, 0x0bcc, 0x9124, 0x5fff,
    0xf124, 0xf356, 0x3eee, 0x0fff, 0x7bbc, 0xf124, 0x0789, 0x2fff,
    0xf002, 0xd789, 0xf024, 0x0fff, 0x0fff, 0x0002, 0x0134, 0xd79a,
    0x1fff, 0xf023, 0xf000, 0xf124, 0xc99a, 0xf024, 0x0567, 0x0fff,
    0xf002, 0xe678, 0xf013, 0x0fff, 0x0ddd, 0x0fff, 0x0fff, 0xb689,
    0x8abb, 0x0fff, 0x0fff, 0xf001, 0xf235, 0xf013, 0x0fff, 0xd789,
    0xf002, 0x9899, 0xf001, 0x0fff, 0x0fff, 0x0fff, 0x0fff, 0xe789,
    0xf023, 0xf000, 0xf001, 0xe456, 0x8bcc, 0xf013, 0xf002, 0xf012,
    0x1767, 0x5aaa, 0xf013, 0xf001, 0xf000, 0x0fff, 0x7fff, 0xf124,
    0x0fff, 0x089a, 0x0578, 0x0fff, 0x089a, 0x0013, 0x0245, 0x0eff,
    0x0223, 0x0dde, 0x0135, 0x0789, 0x0ddd, 0xbbbc, 0xf346, 0x0467,
    0x0fff, 0x4eee, 0x3ddd, 0x0edd, 0x0dee, 0x0fff, 0x0fff, 0x0dee,
    0x0def, 0x08ab, 0x0fff, 0x7fff, 0xfabc, 0xf356, 0x0457, 0x0467,
    0x0fff, 0x0bcd, 0x4bde, 0x9bcc, 0x8dee, 0x8eff, 0x8fff, 0x9fff,
    0xadee, 0xeccd, 0xf689, 0xc357, 0x2356, 0x0356, 0x0467, 0x0467,
    0x0fff, 0x0ccd, 0x0bdd, 0x0cdd, 0x0aaa, 0x2234, 0x4135, 0x4346,
    0x5356, 0x2246, 0x0346, 0x0356, 0x0467, 0x0356, 0x0467, 0x0467,
    0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff,
    0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff,
    0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff,
    0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff, 0x0fff
  };
  surface = SDL_CreateRGBSurfaceFrom(pixels,16,16,16,16*2,0x0f00,0x00f0,0x000f,0xf000);

  // The icon is attached to the window pointer
  SDL_SetWindowIcon(window, surface);

  // ...and the surface containing the icon pixel data is no longer required.
  SDL_FreeSurface(surface);

  // Loop until the user closes the window or presses any key.
  for( ; e.type != SDL_QUIT && e.type != SDL_KEYDOWN; SDL_PollEvent(&e));

  SDL_DestroyWindow(window);   // Close and destroy the window.
  SDL_Quit();                  // Clean up and exit.
  return 0;

}