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TVN_SELCHANGED (Compact 2013)

  • 项目

3/28/2014

This message notifies a tree view control's parent window that the selection has changed from one item to another. It is sent in the form of a WM_NOTIFY message.

Syntax

TVN_SELCHANGED pnmtv = (NM_TREEVIEW FAR *) lParam

Parameters

  • pnmtv
    Pointer to an NM_TREEVIEW structure. The itemOld and itemNew members of the NM_TREEVIEW structure are TVITEM structures that contain information about the previously selected item and the newly selected item. Only the mask, hItem,state, and lParam members of these structures are valid. The stateMask members of the TVITEM structures specified by itemOld and itemNew are undefined on input.

    The action member of the NM_TREEVIEW structure indicates the type of action that caused the selection to change. It is one of the following values.

    Value

    Description

    TVC_BYKEYBOARD

    By a keystroke.

    TVC_BYMOUSE

    By a mouse click.

    TVC_UNKNOWN

    Unknown.

Return Value

The return value is ignored.

Requirements

Header

commctrl.h

See Also

Reference

Tree View Controls Notifications
NM_TREEVIEW
TVITEM
TVN_SELCHANGING
WM_NOTIFY