Retrieves the image used for the icon.
Unlike the other methods of setting and getting icon data, this method will work regardless of whether the icon was set using a #GdkPixbuf, a #GIcon, a stock item, or an icon name.
Icon position
A #GdkPixbuf, or %NULL if no icon is set for this position.
2.16
See Implementation
Retrieves the image used for the icon.
Unlike the other methods of setting and getting icon data, this method will work regardless of whether the icon was set using a #GdkPixbuf, a #GIcon, a stock item, or an icon name.