#GtkGestureDrag is a #GtkGesture implementation that recognizes drag operations. The drag operation itself can be tracked throught the #GtkGestureDrag:drag-begin, #GtkGestureDrag:drag-update and #GtkGestureDrag:drag-end signals, or the relevant coordinates be extracted through gtk_gesture_drag_get_offset() and gtk_gesture_drag_get_start_point().