How to handle KeyDown event of CListCtrl?

I use Visual C++ 4.2 Professional and I am developing an application with a
CPropertySheet as the main window and 6 CPropertyPages as the sub window.

In each CPropertyPage there is a CListCtrl in a Report view style and a
Button.

My question is:
1. If the selection / focus is on one of the CListCtrl item and user press
the Return key, then it must open a new modal dialog to show the content of
items. Or if I double-click on the item or I click the Button with focus on
the CListCtrl, it will open a new modal dialog showing the content of the
item.

How to do that?

I have tried the LVN_KEYDOWN and the NM_RETURN, but when I test the
application and I press Return, it still quitting application, executing the
Window CDialog::OnOk().

Here is my code:
void CKKCDlg::OnKeydownKKCList(NMHDR* pNMHDR, LRESULT* pResult)
{
    LV_KEYDOWN* pLVKeyDow = (LV_KEYDOWN*)pNMHDR;

                // TODO
    if ( pLVKeyDow->wVKey == VK_RETURN )
                {
        OnbtnKKCClicked();
    }
    *pResult = 0;
}

What is wrong or is there something missing in above code?
If I must use the PreTranslateMessage, can you please tell me where I should
put the code since I use CPropertyPages and CPropertySheet?

I look forward to hear from you soon.

Thank you very much.