TreeViewDragSourceObserver::TreeViewDragStarting

Event handler for the drag starting notification.

virtual void TreeViewDragStarting (
    const TreeViewDragSourceEvent & ev,
    bool *              canStart
);

Parameters

ev

A reference to the event.

canStart

false by default. If true, the drag and drop operation can start in the tree view control.

Description

If this event rise it is time to decide to let the drag and drop start from this control or not.