> #include "atlcontrols.h"
> using namespace ATLControls;
> class CMyListView : public ATLControls::CListViewCtrl
> {
> public:
>  BEGIN_MSG_MAP(CMyListView)
>  MESSAGE_HANDLER(WM_LBUTTONDOWN, OnLButtonDown)
>     END_MSG_MAP()
>  CMyListView();
>  virtual ~CMyListView();

>  LRESULT OnLButtonDown(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL&
> bHandled)
>  {
>   AfxMessageBox("left button down");
>   return TRUE;
>  }
> };

> I also have in my control class ---------------
> public:
>  CMyListView m_List;
> and -----------
>  LRESULT OnInitDialog(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL&
> bHandled)
>  {

>   m_List.Attach(GetDlgItem(IDC_LIST1));

> I am unable to trap window  messages in CMyListView.  What could be the
> problem? Am I doing the subclassing wrong>?

> Thanks,

> D.G.

> class CMyListView :
>     piblic CWindowImpl<CMyListView, ATLControls::CListViewCtrl,
> CControlTraits>

> --
> =====================================
> Alexander Nickolov
> Microsoft MVP [VC], MCSD

> MVP VC FAQ: http://www.mvps.org/vcfaq
> =====================================

> > Hi ,
> > I have a following problem
> > A composite control includes atlcontrols.h and uses MFC.
> > I've derived a class like

> > #include "atlcontrols.h"
> > using namespace ATLControls;
> > class CMyListView : public ATLControls::CListViewCtrl
> > {
> > public:
> >  BEGIN_MSG_MAP(CMyListView)
> >  MESSAGE_HANDLER(WM_LBUTTONDOWN, OnLButtonDown)
> >     END_MSG_MAP()
> >  CMyListView();
> >  virtual ~CMyListView();

> >  LRESULT OnLButtonDown(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL&
> > bHandled)
> >  {
> >   AfxMessageBox("left button down");
> >   return TRUE;
> >  }
> > };

> > I also have in my control class ---------------
> > public:
> >  CMyListView m_List;
> > and -----------
> >  LRESULT OnInitDialog(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL&
> > bHandled)
> >  {

> >   m_List.Attach(GetDlgItem(IDC_LIST1));

> > I am unable to trap window  messages in CMyListView.  What could be the
> > problem? Am I doing the subclassing wrong>?

> > Thanks,

> > D.G.

> An Attach behavior of CListViewCtrl in ATL does not provide the needed
> Message Map for the control IDC_LIST1. We need to subclass the control
with
> a class derived from CWindow, and handled the messages there. Therefore,
we
> can add CWindowImpl<CMyListView> as a based class to resolve this issue:

> class CMyListView : public ATLControls::CListViewCtrl,
>                      public CWindowImpl<CMyListView>
> .....
> //Then subclass the control:
> ....
> LRESULT OnInitDialog(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL&
> bHandled)
>  {
> m_List.SubclassWindow(GetDlgItem(IDC_LIST1));
>   return S_OK;
> }

> Thanks,
> Freist