Tree Control Notification Messages

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A tree control (CTreeCtrl) sends the following notification messages as WM_NOTIFY messages:

Notification message Description
TVN_BEGINDRAG Signals the start of a drag-and-drop operation
TVN_BEGINLABELEDIT Signals the start of in-place label editing
TVN_BEGINRDRAG Signals the start of a drag-and-drop operation, using the right mouse button
TVN_DELETEITEM Signals the deletion of a specific item
TVN_ENDLABELEDIT Signals the end of label editing
TVN_GETDISPINFO Requests information that the tree control requires to display an item
TVN_ITEMEXPANDED Signals that a parent item's list of child items was expanded or collapsed
TVN_ITEMEXPANDING Signals that a parent item's list of child items is about to be expanded or collapsed
TVN_KEYDOWN Signals a keyboard event
TVN_SELCHANGED Signals that the selection has changed from one item to another
TVN_SELCHANGING Signals that the selection is about to be changed from one item to another
TVN_SETDISPINFO Notification to update the information maintained for an item

See Also   Windows Common Controls and MFC Classes