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Cdaqhandler::getdata, Cdaqhandler::geterrormessage – Yokogawa PC-Based MX100 User Manual

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2-31

IM MX190-01E

MX100 -Visual C++

2

CDAQHandler::getData

Syntax

virtual int getData(int chType, int chNo, CDAQDateTime &
cDateTime, CDAQDataInfo & cDataInfo);

Parameters

chType

Specify the channel type.

chNo

Specify the channel number.

cDateTime

Specify the destination where the time information data is
to be returned.

cDataInfo

Specify the destination where the measured data is to be
returned.

Description

This function gets the instantaneous values in units of channels.

This function must be overridden with the inheritance class of each model. Returns
an error number if not overridden.

Return value

Returns an error number.
Error:

Not Support

Not supported.

CDAQHandler::getErrorMessage

Syntax

static const char * getErrorMessage(int errCode);

Parameters

errCode

Specify the error number.

Description

Gets the error message string corresponding to the error number specified by the

parameter. If the value is outside the range, the message string is set to Unknown.

Return value

Returns a pointer to the error message string.

2.4 Details of the MX100/DARWIN Common Class