gtk:tool-button-icon-name (object)

object -- a gtk:tool-button widget
icon-name -- a string with the name of the themed icon

Accessor of the icon-name slot of the gtk:tool-button class. The gtk:tool-button-icon-name function returns the name of the themed icon for the tool button. The (setf gtk:tool-button-icon-name) function sets the icon for the tool button from a named themed icon.

See the docs for the gtk:icon-theme object for more details. The icon-name property only has an effect if not overridden by non-nil label, icon-widget and stock-id properties.