Retrieves the source icon name, or NULL if none is set. The icon_name is not a copy, and should not be modified or expected to persist beyond the lifetime of the icon source.
icon name. This string must not be modified or freed.
See Implementation
Retrieves the source icon name, or NULL if none is set. The icon_name is not a copy, and should not be modified or expected to persist beyond the lifetime of the icon source.