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tbDisCal()
Display a precalculated control
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Syntax:

     tbDisCal( <oTbr>, <cID> ) --> NIL

Parameters:

     <oTbr>     Object on which to operate
     <cID>      String containing the control ID's

Returns:

     NIL

Description:

     Displays all controls whose ID is contained in the 2nd parameter. If
     more IDs are contained inside the string, they must be delimited with
     the "-" character. This function calls the refresh of the control, but
     executes the associated precomputation functions before the actual
     display. The tbDisItm(), instead, only displays a refresh but does not
     compute any associated precomputation.
     
     NB: The refresh operates only on the current screen page.

Example:

     // Field Total has a precomputation: (Prc*Qty)
     //
     tbDisItm( oWin, "Total" )  //
     // Now we change the Prc contents
     tbDisCal( oWin, "Total" ) // Display total recomputed

See also:

     tbDisGrp(), tbDisItm()