MessageProcessor ->                              MessageProcessor ->
Arg Variables : ^&ThreadContext                  Arg Variables : ^&ThreadContext 
    Reply : &Record                                  Reply : &Record 
    Message : _                                      Message : _
    Message_id : WM_*                                Message_id : WM_*
    Window_id : WIN_ID_* | DLG_ID_*                  .
                                                   + Message.Port_id = PORT_ID/XT32T_HELPER
...
                                                 ...
/
                                                 /  
