Looks up stock_id in the icon factory, returning an icon set
if found, otherwise null. For display to the user, you should
use gtk.style.Style.lookupIconSet on the #GtkStyle for the
widget that will display the icon, instead of using this
function directly, so that themes are taken into account.
Looks up stock_id in the icon factory, returning an icon set if found, otherwise null. For display to the user, you should use gtk.style.Style.lookupIconSet on the #GtkStyle for the widget that will display the icon, instead of using this function directly, so that themes are taken into account.