VNC.RFBProtocolHandling.RFBProtocolHandler.sendFBIncrementalUpdateRequest Function
send framebuffer-Update message: implicitly tells server, that the last sent update-messages was processed at the client

Public void sendFBIncrementalUpdateRequest (int, int, int, int)
  Type Name Description  
    int x    
    int y    
    int width    
    int height    
  Return Description  
    void