rSens()

         Defines the number of mickeys per pixels

    Syntax:

         rSens( nSensHor, nSensVer ) -> Nil

         nSensHor : A numeric value indicates the number of mickeys per
                    pixel horizontally. Default is 8.
         nSensVer : A numeric value indicates the number of mickeys per
                    pixel vertically. Default is 16.

    Description:

         Defines the number of mickeys per 8 pixels horizontally and
         vertically.

    Return:

         Nothing.

    Example:

         rSens( 3, 12 )