xHarbour Reference Documentation > Function Reference

UsrRdd_SetTop()

Defines the top value for a work area of a user-defined RDD.

Syntax

UsrRdd_SetTop( <nWA>|<pWA>, <xTop> ) --> NIL

Arguments

<nWA>

This is the numeric work area identifier of a work area maintained by a user-defined RDD.

<pWA>

Alternatively, the work area pointer as passed from internal functions of the RDD system can be specified.

<xTop>

This ia the top scope value.

Description

UsrRdd_SetTop() is used to set the Top scope value of a work area maintained by a user-defined RDD. A user-defined RDD is not required to re-implement the Top scope value since it is incorporeted in the user-defined RDD system.

Refer to SET SCOPETOP for more information on the Top scope.

Info

See also:	SET SCOPETOP, UsrRdd_SetBof(), UsrRdd_SetBottom(), UsrRdd_SetEof(), UsrRdd_SetFound()
Category:	Database drivers , User-defined RDD , xHarbour extensions
Header:	usrrdd.ch
Source:	rdd\usrrdd\usrrdd.c
LIB:	lib\xhb.lib
DLL:	dll\xhbdll.dll