CGEventFlag bit mask and hotkey detection

mask.c

  if(  ((flags & kCGEventFlagMaskAlphaShift) == 0 &&
        (flags & kCGEventFlagMaskShift) == 0 &&
        (flags & kCGEventFlagMaskControl) == 0 &&
        (flags & kCGEventFlagMaskAlternate) == 0 &&
        (flags & kCGEventFlagMaskCommand) == kCGEventFlagMaskCommand &&
        (flags & kCGEventFlagMaskHelp) == 0 &&
        (flags & kCGEventFlagMaskSecondaryFn) == kCGEventFlagMaskSecondaryFn &&
        (flags & kCGEventFlagMaskNumericPad) == kCGEventFlagMaskNumericPad &&
        (flags & kCGEventFlagMaskNonCoalesced) == kCGEventFlagMaskNonCoalesced) && 
       (CGEventGetIntegerValueField(event, kCGKeyboardEventKeycode) == 124)){
    if(CGEventGetType(event) == kCGEventKeyUp){
      localInput = !localInput;
    }
  }