Syntax:        TXMACEXEC(<expN1>)

     Purpose:       Function to execute macro. When a macro is
                    executed, the commands that change the current
                    print environment are retained upon completion of
                    the macro.

     Argument:      <expC> is the ID # of the macro.

     Returns:        0  Successful

     Usage:         TXMACEXEC() is used to perform the macro.

     Example:       TXMACEXEC(1)

     See Also:      TXMACBEGIN(), TXMACEND(), TXMACDEL(), TXOVERLAY(),
                    TXMACCALL()