Using LVectorWindow as a Window

There are two way to use LEAD controls :   
   //     1.As a control:   
   //          Enable A and Disable B    
   //     2.As a Window :   
   //          Enable B and Disable As 

// Do not forget to load the libraries in application's initialization code:   
// LBase::LoadLibraries (LT_ALL_LEADLIB);   
// Declare an LVectorWindow object, or a pointer to an LVectorWindow object   
// In the Vector Demo, this in the Document Class   
public:    
   LVectorWindow *m_pVectorWindow;   
//If working with a pointer to an LVectorWindow object, allocate the object   
//In the Vector Demo, this is in the Document class constructor   
m_pVectorWindow = new LVectorWindow;   
//Attach the LVectorWindow object to an already existing window   
//In the vector Demo, this is done in the View Class,  in the OnCreate() function   
//The m_hWnd refers to the existing window that the LVectorWindow object is being attached   
GetDocument()->m_pVectorWindow->SetWndHandle(m_hWnd);   
//Add code to load a file.   
//In the Vector Demo, this is in the Document class, in the OnOpenDocument() function   
m_pVectorWindow->Load(szTemp);