[ Version ( since = "3.10" ) ]
public void drag_highlight_row (ListBoxRow row)
This is a helper function for implementing DnD onto a ListBox.
The passed in row will be highlighted via drag_highlight, and any
previously highlighted row will be unhighlighted.
The row will also be unhighlighted when the widget gets a drag leave event.
| this |
a ListBox |
| row |