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dfIsCaller()
Check if a function is in the CALL STACK of the current
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Syntax:

     dfIsCaller( <cName>, [<nPos>] ) --> lIsCaller

Parameters:

     <cName>    Function name to check
     <nPos>     Position for starting check. DEFAULT 0

Returns:

     <lIsCaller> If .T. the function cName is one of the caller

Description:

     Check if a function is in the CALL STACK of the current

Example:

     IF dfIsCaller("FormActExe")
        dbMsgErr("Recursione not allowed")
     ENDIF

See also:

     dfRecourse()