const char* gtk_icon_paintable_get_icon_name ( GtkIconPaintable* self )
Get the icon name being used for this icon.
When an icon looked up in the icon theme was not available, the
icon theme may use fallback icons - either those specified to
gtk_icon_theme_lookup_icon() or the always-available
“image-missing”. The icon chosen is returned by this function.
If the icon was created without an icon theme, this function