Iconify/Minimise the window
Returns 1 if it succeeded. This function is a noop and returns 0 in non-windowed environments.
This function iconifies/minimizes the window, and returns 1 if it succeeded. If the function succeeds, it generates an SDL_APPACTIVE loss event.
Binds to C-function call in SDL_video.h:
int SDL_WM_IconifyWindow(void)