MSETPOS()
 Set a new position for the mouse cursor
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 Syntax

     MSETPOS( <nRow>, <nCol> ) --> NIL

 Returns

     MSETPOS() always returns NIL.

 Description

     MSETPOS () is a function that moves the mouse cursor to a new position
     on the screen.  After the mouse cursor is positioned, MROW() and MCOL()
     are updated accordingly.  To control the visibility of the mouse cursor,
     use MSETCURSOR().