GtkTreeViewColumn::set_widget
void set_widget(GtkWidget widget);
Sets the widget in the header to be widget. If widget is null, then the header button is set with a GtkLabel set to the title of the column.
See also: get_widget()
Sets the widget in the header to be widget. If widget is null, then the header button is set with a GtkLabel set to the title of the column.
See also: get_widget()