This code provide duplicate the layer in the current document.
It must some keyTo param. but what arguments is?
Auto_Ref docRefs;
Auto_Desc docDescs;
Auto_Desc results(false);
error = sPSActionReference->PutIdentifier(docRefs.get(),
classLayer,
LayerID);
error = sPSActionDescriptor->PutReference(docDescs.get(),
keyNull,
docRefs.get());
error = sPSActionControl->Play(&result,
eventDuplicate,
docDescs.get(),
plugInDialogDontDisplay);