| 値 | シンボリック名 | 説明 | 
| -100 | Gtk::PRIORITY_DEFA |  | 
| 100 | Gtk::PRIORITY_HIGH_IDLE | Use this for high priority timeouts. This priority is never 
    used inside GTK+ so everything running at this priority will 
    be running before anything inside the toolkit. | 
| 110 | Gtk::PRIORITY_HIGH_IDLE | Use this priority for resizing related stuff. It is used internally by 
    GTK+ to compute the sizes of widgets. This priority is higher than 
    Gtk::GTK_PRIORITYto avoid resizing a widget which 
    was just redrawn. | 
| 120 | Gtk::PRIORITY_REDRAW | Use this priority for redrawing related stuff. It is used internally by
    GTK+ to do pending redraws. This priority is lower than 
    Gtk::PRIORITY_RESIZE to avoid redrawing a widget just
    before resizing (and therefore redrawing it again). | 
| 200 | Gtk::PRIORITY_DEFAULT_IDLE | Default priority for idle functions. | 
| 300 | Gtk::PRIORITY_LOW | Priority for very unimportant background tasks. |