[Connect] MstnPrimitiveTool vs DgnPrimitiveTool and error C2248

Question

Hi everyone. I am not sure where to locate this error. I have a small primitive command derived from MstnPrimitiveTool in V8 and I am trying to convert it to V10. Do you have any suggestions?

TIA Volker

What I have done:

I replaced MstnPrimitiveTool with DgnPrimitiveTool and renamed the methods to underline + On…. etc.

The compiler seems to be satisfied with header and c++ file.

Source h-file:

class CabtoolCmdKeil : DgnPrimitiveTool

protected:

   DPoint3d          _aPoints[5];

   UInt32            _ulAnzPunkt;

private:

   MSElementDescrP   _pZellDscr;

   Int64             _llcmdNumber;

 public:

   CabtoolCmdKeil(Int64 cmdNumber, int cmdNameID, int cmdPromptID);

   ~CabtoolCmdKeil();

   virtual bool _OnInstall() override;

   virtual void _OnPostInstall() override;

   virtual void _OnCleanup() override;

   virtual void _OnRestartTool() override;

   virtual void _OnReinitialize() override;

   virtual void OnComplexDynamics(DgnButtonEventCR ev);

   virtual bool _OnResetButton(DgnButtonEventCR ev) override

      _OnReinitialize(); return true;

   virtual bool _OnDataButton(DgnButtonEventCR ev) override;

   void MyInstallTool(void);

private:

   bool _CreateElement(EditElementHandleR eeh);

};

But I got this error C2248 here:

Source c++file:

static void cmdABKeil(WCharCP wszUnParsed)

   CabtoolCmdKeil*   pTool = new CabtoolCmdKeil(CMD_ABDATE_KEIL, MESSAGELISTID_Commands_Keil, MESSAGELISTID_Prompts_Keil);

   pTool->MyInstallTool();

The Error message:

my.cpp(143) : error C2248: 'Bentley::RefCounted<Bentley::IRefCounted>::operator new' : cannot access protected member declared in class 'Bentley::RefCounted<Bentley::IRefCounted>'

…\include\Bentley/RefCounted.h(91) : see declaration of 'Bentley::RefCounted<Bentley::IRefCounted>::operator new'

my.cpp(143) : error C2248: 'Bentley::RefCounted<Bentley::IRefCounted>::operator delete' : cannot access protected member declared in class 'Bentley::RefCounted<Bentley::IRefCounted>'

…\include\Bentley/RefCounted.h(91) : see declaration of 'Bentley::RefCounted<Bentley::IRefCounted>::operator delete'

Paul Connelly · Accepted Answer

Protected functions can't be called from outside of the class or its friends. 
 Add a static member function like: 
 class MyTool : DgnPrimitiveTool
{
private: MyTool(whatever args);
public: static RefCountedPtr<MyTool> Create(whatever args) { return new MyTool(args); }
}; 
 Or make your MyInstallTool() static and have it allocate the tool internally. 
 Regards, 
 Paul