gtk:notebook-group-name (object)

object -- a gtk:notebook widget
name -- a string with the name of the notebook group, or nil to unset it

Accessor of the group-name slot of the gtk:notebook class. The gtk:notebook-group-name function gets the current group name for the notebook. The (setf gtk:notebook-group-name) function sets a group name.

Notebooks with the same name will be able to exchange tabs via drag and drop. A notebook with a nil group name will not be able to exchange tabs with any other notebook.