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dfGet()
Performs a get on the screen
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Syntax:

     dfGet( <nRow>, <nCol>, <bVar>|@<uVar>, <cPic>,;
                             <cColor> ) --> NIL

Parameters:

     <nRow>, <nCol> Get coordinates
     <bVar>|@<uVar> Variable to get
     <cPic>     Get picture
     <cColor>   Get color

Returns:

     NIL

Description:

     Performs a get at given screen coordinates

Example:

     LOCAL cString := SPACE(20)
     
     dfGet( 10, 10, {|x|IF(x==NIL,cString,cString:=x)},;
              "@S10", "W+/B" )
     
     // OR
     
     dfGet( 10, 10, @cString, "@S10", "W+/B" )

See also:

     dfGetW()