SOLVED How to get InExcludeData in ModifyObject

hi, this is my code. I can get InExludeData in Message(..) , but it can't work in ModifyObject(..),just print 0.where did i wrong?
hope for your help!

Bool TestObjectPlugin::ModifyObject(BaseObject * mod, BaseDocument * doc, BaseObject * op, const Matrix & op_mg, const Matrix & mod_mg, Float lod, Int32 flags, BaseThread * thread)
{
        GeData gd;
        BaseContainer* data = mod->GetDataInstance();
	Bool success = data->GetParameter(DescID(MY_InExludeData),gd);
        if(success){
            if (gd.GetType() == CUSTOMDATATYPE_INEXCLUDE_LIST) 
            {     
           		GePrint("Currect"_s); 
            }        
            else
            { 
           		GePrint(maxon::ToString(gd.GetType(), false));
            }    
         }
}

Maybe I know the reason why it error in my project,ModifyObject will be call when under the currect object,and success valuse always True ,even InExcludeData == nullptr.

Maybe I know the reason why it error in my project,ModifyObject will be call when under the currect object,and success valuse always True ,even InExcludeData == nullptr.

hello,

I've run some test and it print 0 if i do not initialize the gadget. Once i drop an object on the in-exclude list it's working correctly.

So did you have initialize the gadget in your Init() function ?

something like so in your case.

BaseObject*		 op = (BaseObject*)node;
BaseContainer* data = op->GetDataInstance();

data->SetData(MY_InExludeData, GeData(CUSTOMDATATYPE_INEXCLUDE_LIST, DEFAULTVALUE));
	

Cheers
Manuel

@m_magalhaes Thank you for your answer. really helpful!