Method procedure SLSimpleDataBuffer.ISLDataBuffer.Unique(Boolean)

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Revision as of 13:52, 26 October 2012

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Class: ISLDataBuffer

Contents 1 Syntax 1.1 Delphi: 1.2 C++ Builder: 1.3 Visual C++ (MFC): 2 Summary 3 Description 4 Parameters

Syntax

Delphi:

procedure Unique( PreserveData : Boolean );

C++ Builder:

void __fastcall Unique( bool PreserveData );

Visual C++ (MFC):

' Unique( PreserveData );

Summary

Makes the data of the buffer Unique.

Description

The SignalLab reduces the amount of copy operations, by keeping the data in internal buffer, and keeping references to the buffer from the data buffers. Each time an assignment operation is performed, the reference counter is increased. If the data has to be modified for one of the data buffers pointing to the internal buffers, a separated copy of the data has to be created. By calling Unique you can force the buffer to obtain unique copy of the data, and to become its explicit owner.

Parameters

Parameter	Description
PreserveData	If true - the data will be preserved.
Otherwise the current data of the buffer may
be lost.