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XSharpLoadLibrary Function (RT)

Year Function (RT)

DbSelect Function

Select a new work area and retrieve the current work area.

Namespace: XSharp.RT
Assembly: XSharp.RT (in XSharp.RT.dll) Version: 2.19

Syntax

Copy

 FUNCTION DbSelect(
	nNew
) AS DWORD CLIPPER

[ClipperCallingConventionAttribute(new string[] { ... })]
public static uint DbSelect(
	Usual nNew = default
)

Request Example View Source

Parameters

nNew (Optional): Type: Usual
The work area number for the new work area.

Return Value

Type: DWord
The work area number for the old work area.

Remarks

DBSelect() allows you to change the current work area and also retrieve the number of the current work area.
This is useful in a group programming project or when writing black-box general routines: each time a module changes the environment by selecting a new work area, you must save and restore the old environment.

Examples

The following example sets a new work area and stores the number of the current work area:

Copy

1nOld := 0
2nNew : = 10
3nOld := DBSelect(nNew)
4...
5// Restore the old work area
6DBSelect(nOld)
7? "New work area            :", Select()
8? "Workarea selected before :", nOld

Reference

Functions, Globals and Defines

XSharp.RT Namespace

VoDbSelect