CListCtrl & Double Click :: MFC

This is a discussion on CListCtrl & Double Click :: MFC within the Windows Programming forums, part of the Platform Specific Boards category; Hi. I am implemented a very simple MFC program without the powerful of ClassWizard. I added a CListCtrl listbox. Everything ...

  1. #1
    Registered User
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    Nov 2001
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    CListCtrl & Double Click :: MFC

    Hi.

    I am implemented a very simple MFC program without the powerful of ClassWizard.

    I added a CListCtrl listbox. Everything works as designed except for a double-click message handler. I cannot get the program to respond when the user double-clicks the listbox. I have tried different messages, but all failed.

    I would like to know, What message do you handler for double-click (left mouse button) on a CListCtrl that is not in a dialog box and was not implemented using ClassWizard.

    Thanks,
    Kuphryn

  2. #2
    erstwhile
    Join Date
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    CListCtrl encapsulates a Listview common control. As with other common controls, look to WM_NOTIFY for specific notification messages. In the case of a double-click event, the message in question is NM_DBLCLK. Other useful notifications in this regard are similarly prefixed with 'NM_*'. It may also be worthwhile to read the sdk docs on the win32 listview common control for a complete list of all messages, macros, etc.

    Hope that helps.

    edit: as tempting as it is to insist that 'notifiction' is a real word, I accept that it's not.
    Last edited by Ken Fitlike; 10-19-2002 at 05:54 PM.
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    Caution: this person may be a carrier of the misinformation virus.

  3. #3
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    Okay. Thanks.

    I figured out the bug. The bug was a human-error, not an MFC error.

    I made an error during creation of the CListCtrl object.

    Here is the error.

    // Here is the incorrect creation code.
    -----
    m_LB_Box.Create(WS_CHILD | WS_VISIBLE | WS_BORDER | LVS_REPORT | LVS_SORTASCENDING, CRect(0, 100, 100, 50), this, 1);
    -----

    Notice the "1" in the last parameter.

    // Here is the solution.
    -----
    m_LB_Box.Create(WS_CHILD | WS_VISIBLE | WS_BORDER | LVS_REPORT | LVS_SORTASCENDING, CRect(0, 100, 100, 50), this, IDC_LB_BOX);
    -----

    Kuphryn

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