public virtual bool Closing() { bool ret = (SwigDerivedClassHasMethod("Closing", swigMethodTypes3) ? EffekseerNativePINVOKE.GUIManagerCallback_ClosingSwigExplicitGUIManagerCallback(swigCPtr) : EffekseerNativePINVOKE.GUIManagerCallback_Closing(swigCPtr)); return(ret); }