I would like to send message to CXTPDockingpan.

class Cg3OutlookBarContainer : public CTaskPanelBase


 i make inherited class from CTaskPanelBase.
and I attached my class to pane.

case XTP_DPN_SHOWWINDOW:
     pPane->Attach(pWnd);


 I would like to Send Message to attached my class.
 when  MainProgram state is changed.

I think to send message to pane.
or get my class from pane.

ex)

    CXTPDockingPaneInfoList& paneList = m_paneManager.GetPaneList();
    for (POSITION pos = paneList.GetHeadPosition(); pos;)
    {
        // the pane is active if the child view has focus.
        XTP_DOCKINGPANE_INFO& dpi = paneList.GetNext(pos);

      method 1.
        SendMessage(  dpi.pPane, WM_PAINT );
        or
        dpi.pPane->SendMessage();

       method 2.
       dpi.pPane->GetMyClass()->MyFunction();
     }