Gets the current value and the human readable text alternative of obj. text is a newly created string, that must be freed by the caller. Can be NULL if no descriptor is available.
address of #gdouble to put the current value of obj
address of #gchar to put the human readable text alternative for value
Gets the current value and the human readable text alternative of obj. text is a newly created string, that must be freed by the caller. Can be NULL if no descriptor is available.