twGaugeNew( wT, wL, wB, wR, cBackClr, cBarClr,;
             cBarCharacter, wFType )
 ----------------------------------------------------------------------------
     Initialize a new gaugebar. The bar is of the form:

              +------------------[  38%  ]--------------------+
              |####################                           |
              +-----------------------------------------------+

     The percentage is displayed if there is room. The height of the
     bar is determined by the coordinates used to initialize it.


       Arguments:

     wT, wL
     wB, wR        - 'N' Relative window coordinates

     cBackClr      - 'C' Background colour for the bar.

     cBarClr       - 'C' Actual Bar Colour. The colours default to the
                         current window colour.

     cBarCharacter - 'C' Character for the bar. Defaults to CHR( 219 ).

     wFType        - 'N' Frame type to use for the bar display.
                         Defaults to the current window frame type.

       Return:

     Bar Handle to be used in displaying and updating the bar.

       Example:

     nBarHandle := twGaugeNew( 5, 5, 10, 74, ;
                      twStdClr( _wColor() ), ;
                      twEnhClr( _wColor() ), "#", 5 )