Looks up @stock_id in the icon factories associated with @style and the default icon factory, returning an icon set if found, otherwise %NULL.
an icon name
Return: icon set of @stock_id
Deprecated: Use gtk_style_context_lookup_icon_set() instead
See Implementation
Looks up @stock_id in the icon factories associated with @style and the default icon factory, returning an icon set if found, otherwise %NULL.