CListCtrl derived class not receiving WM_VSCROLL

[b_girl]

I have a list control within a dialog box and when the user clicks on the vertical scroll bar in the control, I need something to happen within that control. I have tried to use message maps to handle the WM_VSCROLL message in both the dialog class and the CListCtrl derived class. Neither of these classes ever seem to get a WM_VSCROLL message. Does anyone know what message is sent when a user clicks on the vertical scroll bar in a list control? Thanks.

[Mike Dimmick]

It is WM_VSCROLL. I assume that you've drawn a list view control in your dialog template. If you only used Attach to attach your CListCtrl-derived object, you won't get all the messages. You need to either use SubclassWindow, or you can use DDX_Control in your dialog's DoDataExchange override.

[b_girl]

Mike Dimmick wrote: or you can use DDX_Control in your dialog's DoDataExchange override. I have used DDX_Control in my dialog's DoDataExchange override: DDX_Control(pDX, IDC_ELEMENT_LIST, m_elementList); where m_elementList is of type CElementListCtrl, my ListCtrl derived class. In CElementListCtrl I have both a function to handle the WM_VSCROLL message and an override of PreTranslateMessage() where I put in: if(pMsg->message == WM_VSCROLL) AfxMessageBox("WM_VSCROLL message received"); but that if statement never gets executed either, which leads me to believe that this message is never getting sent. I had also tried to put a function in my dialog class to handle the WM_VSCROLL message as well, just to see if the dialog class was getting the message instead of my list control, but it wasn't.