TVN_SELCHANGING

This notification message notifies a tree view control’s parent window that the selection is about to change from one item to another. It is sent in the form of a WM_NOTIFY message.

At a Glance

Header file: Commctrl.h
Windows CE versions: 1.0 and later

Syntax

  1. TVN_SELCHANGING pnmtv = (NM_TREEVIEW FAR *) lParam

Parameters

pnmtv

Pointer to an NMTREEVIEW structure. The itemOld and itemNew members contain valid information about the currently selected item and the newly selected item. The action member indicates whether a mouse or keyboard action is causing the selection to change. For a list of possible values, see the description of the TVN_SELCHANGED notification message.

Return Values

TRUE prevents the selection from changing.

See Also

NM_TREEVIEW, TVN_SELCHANGED, WM_NOTIFY