flocking/Mirror.cpp
void
OnDestroy(HWND hwnd) {
  if (g_hthumb) { DwmUnregisterThumbnail(g_hthumb); }
  PostQuitMessage(0);
}
/*
 *  OnDestroy
 *      Post a quit message because our application is over when the
 *      user closes this window.
 */
OnDestroy
Post a quit message because our application is over when the
user closes this window.
OnDestroy Post a quit message because our application is over when the user closes this window .
void
OnDestroy(HWND hwnd) {
  if (g_hthumb) { DwmUnregisterThumbnail(g_hthumb); }
  PostQuitMessage(0);
}
void OnDestroy ( HWND hwnd ) { if ( g_hthumb ) { DwmUnregisterThumbnail ( g_hthumb ) ; } PostQuitMessage ( 0 ) ; }
OnDestroy
      Post a quit message because our application is over when the
      user closes this window.
OnDestroy Post a quit message because our application is over when the user closes this window .