Retrieves the icon name used for the icon.
%NULL is returned if there is no icon or if the icon was set by some other method (e.g., by GdkPaintable or gicon).
Icon position
An icon name, or %NULL if no icon is set or if the icon wasn’t set from an icon name
See Implementation
Retrieves the icon name used for the icon.
%NULL is returned if there is no icon or if the icon was set by some other method (e.g., by GdkPaintable or gicon).