a stock ID
a stock size (#GtkIconSize). A size of (GtkIconSize)-1 means render at the size of the source and don’t scale (if there are multiple source sizes, GTK+ picks one of the available sizes).
render detail to pass to theme engine
a new pixbuf, or %NULL if the stock ID wasn’t known
Deprecated: Use gtk_widget_render_icon_pixbuf() instead.
A convenience function that uses the theme settings for @widget to look up @stock_id and render it to a pixbuf. @stock_id should be a stock icon ID such as #GTK_STOCK_OPEN or #GTK_STOCK_OK. @size should be a size such as #GTK_ICON_SIZE_MENU. @detail should be a string that identifies the widget or code doing the rendering, so that theme engines can special-case rendering for that widget or code.
The pixels in the returned #GdkPixbuf are shared with the rest of the application and should not be modified. The pixbuf should be freed after use with g_object_unref().