About Tree-View Control Notification Messages

A tree-view control sends the following notification messages to its parent window in the form of WM_NOTIFY messages.

Notification	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-view 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	Notifies a parent window that it must update the information it maintains for an item.

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