Used to control what selections users are allowed to make.
Used by methods of the GtkTreeSelection class; set_mode() and get_mode() .
Value | Symbolic name | Description |
| 0 | Gtk::SELECTION_NONE | No selection is possible. |
| 1 | Gtk::SELECTION_SINGLE | Zero or one element may be selected. |
| 2 | Gtk::SELECTION_BROWSE | Exactly one element is selected. In some circumstances, such as initially or during a search operation, it's possible for no element to be selected with Gtk::SELECTION_BROWSE. What is really enforced is that the user can't deselect a currently selected element except by selecting another element. |
| 3 | Gtk::SELECTION_MULTIPLE | Any number of elements may be selected. Clicks toggle the state of an item. Any number of elements may be selected. Click-drag selects a range of elements; the Ctrl key may be used to enlarge the selection, and Shift key to select between the focus and the child pointed to. |