The MFn::Type enumeration is used throughout the API to indicate item types.

• The Function sets class has an apiType() method which you can use to determine the type of object the MObject is referencing. Each function set also has a type() method which can be used to determine the function set type.
• The MGlobal::getFunctionSetList() also returns an array of strings representing the types of function sets that will accept an object.

See also Objects and Function Sets.