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TVN_SINGLEEXPAND

TVN_SINGLEEXPAND
    lpnmtv = (LPNMTREEVIEW)lParam;

Sent by a tree view control with the TVS_SINGLEEXPAND style when the user opens or closes a tree item using a single click of the mouse. This notification is sent in the form of a WM_NOTIFY message.

• The control ignores the return value for this notification.

lpnmtv

Address of an NMTREEVIEW structure that contains information about this notification.

This notification is only sent by tree view controls that have the TVS_SINGLEEXPAND style.

Version 4.71

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