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LINE_DIR()
   Specifies the direction in which text is written.

   Syntax
         nDirection = LINE_DIR([nDirection])

   Arguments
         nDirection  Sets the direction in shich the text is written.
                     0 - right to left.
                     1 - left to right.
                     2 - bottom to top.
                     3 - top to bottom.

   Returns
         nDirection  Returns the current direction setting.

   Description
         LINE_DIR() specifies the direction in which text is written. The
         default is to print from left to right. Once a direction is set
         it applies to all text written.