Datadoublevalueda100 – Yokogawa PC-Based MX100 User Manual

Page 1136

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24-45

IM MX190-01E

DARWIN for Extended API - Visual C/Visual Basic/Visual Basic.NET/Visual C# -

24

dataDoubleValueDA100

Syntax

double dataDoubleValueDA100(DAQDA100 daqda100, int chType, int
chNo);

Declaration

Visual Basic
Public Declare Function dataDoubleValueDA100 Lib
"DAQDA100"(ByVal daqda100 As Long, ByVal chType As Long, ByVal
chNo As Long) As Double
Visual Basic.NET
Public Declare Ansi Function dataDoubleValueDA100 Lib
"DAQDA100"(ByVal daqda100 As Integer, ByVal chType As Integer,
ByVal chNo As Integer) As Double
C#
[DllImport("DAQDA100.dll" CharSet=CharSet.Auto,
EntryPoint="dataDoubleValueDA100")]
public static extern double dataDoubleValueDA100(int daqda100,
int chType, int chNo);

Parameters

daqda100

Specify the device descriptor.

chType

Specify the channel type.

chNo

Specify the channel number.

Description

Gets the measured value of the specified channel (channel type and number) from

the stored measured data.
• Returns 0.0 if it does not exist.

Return value

Returns the measured value as a double-precision floating number.

Reference

CDAQDA100::getClassDataBuffer
CDAQDARWINDataBuffer::getClassDARWINDataInfo
CDAQDARWINDataInfo::getDoubleValue

24.2 Details of Functions - DARWIN (Visual C/Visual Basic/Visual Basic.NET/C#) - Retrieval Functions

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