Managing Message using WindowProc

Is there a way in VB5 to get access to the objects (if objects are passed) that are passed in WindowProc ?

Function WindowProc(ByVal hw As Long, _

                        ByVal uMsg As Long, _
                        ByVal wParam As Long, _
                        ByVal lParam As Long) As Long

if a message is sent to VB via a posmessage and it passes pointer to objects in wParam & lParam. I could not find a way ????? Received on Wed Dec 10 1997 - 00:00:00 CST