Warning
gtk_style_context_lookup_icon_set has been deprecated since version 3.10 and should not be used in newly-written code. Use gtk_icon_theme_lookup_icon() instead.
Looks up stock_id in the icon factories associated to context and
the default icon factory, returning an icon set if found, otherwise
NULL.
Warning gtk_style_context_lookup_icon_set has been deprecated since version 3.10 and should not be used in newly-written code. Use gtk_icon_theme_lookup_icon() instead. Looks up stock_id in the icon factories associated to context and the default icon factory, returning an icon set if found, otherwise NULL.