OnRButtonUp in CXTPControlButton ???

Hi,

I'm currently using an Appbar application. Hence, I've a few buttons on the Appbar which I used CXTPControlButton to make them function as and when a user click on them. According to the help file, CXTPControlButton is derived from CXTPControl. Therefore, I should be able to use the functions or override functions in CXTPControl right? Here is my question. May I know how to use the OnRButtonUp(CPoint) of CXTPControl in CXTPControl? I've managed to put the function in and compile without any errors. Unfortunately, nothing happens when I performed a right click on the button. May I know how do I make this thing work?

PS: Sample code as follows

// file.h
class CMyClass : public CXTPControlButton
{
public:
    CMyClass(void);
    virtual ~CMyClass(void);
    DECLARE_MESSAGE_MAP()
    virtual void OnRButtonUp(CPoint point);
};

// file.cpp
CMyClass::CMyClass(void)
{
}

CMyClass::~CMyClass(void)
{
}

BEGIN_MESSAGE_MAP(CMyClass, CXTPControlButton)
END_MESSAGE_MAP()

void CMyClass::OnRButtonUp(CPoint point)
{
    TRACE(_T("!@#!%$!@%$!#\n"));

    __super::OnRButtonUp(point);
}

Thank you very much

Regards