The IDLitDataOperation::Cleanup procedure method performs all cleanup on the object.
An operation based on the IDLitDataOperation class need not implement this method if the operation does not allocate any pointers or object references of its own.
Cleanup methods are special lifecycle methods, and as such cannot be called outside the context of object creation and destruction. This means that in most cases, you cannot call the Cleanup method directly. There is one exception to this rule: if you write your own subclass of this class, you can call the Cleanup method from within the Init or Cleanup method of the subclass.
Obj->[IDLitOperation::]Cleanup (Only in subclass' Cleanup method.)