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  1. #1
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    Question "Windows Explorer"

    If I use "Windows Explorer" style in MFC application how work with events in CTreeView. For example with OnExpand. Because in MESSAGEMAP it is needed to write name of CTreeView, but name i can't find. How get it?

  2. #2
    VictorN's Avatar
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    Re: "Windows Explorer"

    What "name of CTreeView" do you mean?
    What IDE are you using?
    In what class are you trying to implement message handler?
    Victor Nijegorodov

  3. #3
    GCDEF is offline Elite Member Power Poster
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    Re: "Windows Explorer"

    Just click on the Class View tab in Visual Studio, select the CTreeView derived class, right click and select properties, click on the messages button and add you handler. (This is for 2008. Other versions may be different).

  4. #4
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    Re: "Windows Explorer"

    What "name of CTreeView" do you mean?
    For example, in
    ON_NOTIFY(TVN_ITEMEXPANDING, IDC_TREE1, OnItemExpandingTree1)
    "IDC_TREE1"...
    What IDE are you using?
    VS2008
    In what class are you trying to implement message handler?
    In CMainFrame class...

  5. #5
    GCDEF is offline Elite Member Power Poster
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    Re: "Windows Explorer"

    Quote Originally Posted by AKE View Post
    What "name of CTreeView" do you mean?
    For example, in
    ON_NOTIFY(TVN_ITEMEXPANDING, IDC_TREE1, OnItemExpandingTree1)
    "IDC_TREE1"...
    What IDE are you using?
    VS2008
    In what class are you trying to implement message handler?
    In CMainFrame class...
    Wouldn't that be better handled in the TreeView class?

  6. #6
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    Re: "Windows Explorer"

    GCDEF, there is OnExpanding absent...

  7. #7
    VictorN's Avatar
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    Re: "Windows Explorer"

    Quote Originally Posted by AKE View Post
    What "name of CTreeView" do you mean?
    For example, in
    ON_NOTIFY(TVN_ITEMEXPANDING, IDC_TREE1, OnItemExpandingTree1)
    "IDC_TREE1"...
    It is NOT a name, it is a control ID
    And in CTreeView derived class this macro is not used. Instead the
    Code:
    	ON_NOTIFY_REFLECT(TVN_ITEMEXPANDING, OnItemExpandingTree1)
    should be used.

    Quote Originally Posted by AKE View Post
    What IDE are you using?
    VS2008
    Well, GCDEF already explained how to add message handler in 2008.

    Quote Originally Posted by AKE View Post
    In what class are you trying to implement message handler?
    In CMainFrame class...
    Bad idea! Why in CMainFrame?
    It should be in a CTreeView derived class!
    Victor Nijegorodov

  8. #8
    GCDEF is offline Elite Member Power Poster
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    Re: "Windows Explorer"

    Quote Originally Posted by AKE View Post
    GCDEF, there is OnExpanding absent...
    I see TVN_ITEMEXPANDING

  9. #9
    VictorN's Avatar
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    Re: "Windows Explorer"

    Quote Originally Posted by GCDEF View Post
    I see TVN_ITEMEXPANDING
    ... and I also use it since more than a decade...
    Victor Nijegorodov

  10. #10
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    Re: "Windows Explorer"

    VictorN, thanks I will make such... Now I try use it...

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