Function sdl2_sys::SDL_SetWindowModalFor

pub unsafe extern "C" fn SDL_SetWindowModalFor(
    modal_window: *mut SDL_Window, 
    parent_window: *mut SDL_Window
) -> c_int

\brief Sets the window as a modal for another window (TODO: reconsider this function and/or its name)

\param modal_window The window that should be modal \param parent_window The parent window

\return 0 on success, or -1 otherwise.