How to get a value from JavaScript

How to get java script result into JSResult i m not getting it.

I have wriiten follwing code in c++ :

          WideString scriptPath("\\InDesign\\Source1.jsx");

          IDFile scriptFile(scriptPath);

          InterfacePtr<IScriptRunner>scriptRunner(Utils<IScriptUtils>()->QueryScriptRunner(scriptFile));

          if(scriptRunner)

          {

                    ScriptRecordData arguments;

                    ScriptIDValuePair arg;

                    ScriptID aID;

                    ScriptData script(scriptFile);

                    ScriptData resultData;

                    PMString errorString;

                    KeyValuePair<ScriptID,ScriptData> ScriptIDValuePair(aID,script);

                    arguments.push_back(ScriptIDValuePair);

                    PMString paramkeyname1;

                    Utils<IScriptArgs>()->Save();

                    Utils<IScriptArgs>()->Set("paramkeyname1",scriptPath);

                    Utils<IScriptUtils>()->DispatchScriptRunner(scriptRunner,script,arguments,resultData,errorString,kFalse);

                    Utils<IScriptArgs>()->Restore();

                    ScriptData::ScriptDataType fDataType = resultData.GetType(); // here i should get true or false which i m passing it from javascript code......not as s_boolean

                    if (fDataType == kTrue)

                    {

                                   //CAlert::InformationAlert("sucess");

                                 iOrigActionComponent->DoAction(ac, actionID, mousePoint, widget);

                    }

                    else

                    {

                                this->PreProcess(PMString(kCstAFltAboutBoxStringKey));

                    }

          }

Java script code:

function main()

{

       var scrpt_var;

       var scriptPath,scrptMsg;

       var frntDoc=app.documents[0];

       if(app.scriptArgs.isDefined("paramkeyname1"))

       {

           var value = app.scriptArgs.get("paramkeyname1");

            alert(value);

             return true; // i want this value i should get in c++ code...How to get these values in c++

       }

       else

       {

          alert ("Error");

          return false; // i want this value i should get in c++ code...How to get these values in c++

       }

}