Creates a (useless) instance.
Gets the name of the class. Names starting with wx are reserved for
internal use.
Reads a new data object from the given stream, returning #f if
there is an error.
Sets the name of the class. Names starting with wx are
reserved for internal use.
An editor data class name should usually have the form
"(lib\n ...)" to enable on-demand loading of the class; see
Editor Data for details.