alias Gtk::TreeViewColumnDropFunc
Overview
Function type for determining whether @column can be dropped in a
particular spot (as determined by @prev_column and @next_column). In
left to right locales, @prev_column is on the left of the potential drop
spot, and @next_column is on the right. In right to left mode, this is
reversed. This function should return true if the spot is a valid drop
spot. Please note that returning true does not actually indicate that
the column drop was made, but is meant only to indicate a possible drop
spot to the user.
Alias Definition
Gtk::TreeView, Gtk::TreeViewColumn, Gtk::TreeViewColumn, Gtk::TreeViewColumn -> Bool