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Daqcvtsetadcrange, Daqdefaulterrorhandler, Daqformaterror – Measurement Computing Personal Daq rev.6.0 User Manual

Page 152

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B-20 API Commands

Appendix B,

887095

Personal Daq User’s Manual

daqCvtSetAdcRange

DLL Function

daqCvtSetAdcRange(FLOAT Admin, FLOAT Admax);

C

daqCvtSetAdcRange(FLOAT Admin, FLOAT Admax);

Visual BASIC

VBdaqCvtSetAdcRange&(ByVal ADmin!, ByVal ADmax!)

Delphi

daqCvtSetAdcRange(Admin:single; Admax:single)

Admin

A/D minimum voltage range

Parameters

Admax

A/D maximum voltage range

Returns

DerrNoError

No error

See Also

Program References

None

Used With

Description

daqCvtSetAdcRange

allows you to set the current ADC range for use by the daqCvt… functions. This function should not need to be

called if used for data collected by the Personal Daq devices.

daqDefaultErrorHandler

DLL Function

DaqDefaultErrorHandler(DaqHandleT handle, daqError errCode);

C

DaqDefaultErrorHandler(DaqHandleT handle, DaqError errCode);

Visual BASIC

VbdaqDefaultErrorHandler(ByVal handle&, ByVal errCode&)

Delphi

DaqDefaultErrorHandler(handle:DaqHandleT; errCode:daqError)

Handle

Handle to the device to which the default error handler is to be attached.

Parameters

ErrCode

The error code number of the detected error

Returns

None

See Also

DaqGetLastError, daqProcessError, daqSetDefaultErrorHandler

Program References

None

Used With

All devices

Description

daqDefaultErrorHandler

displays an error message and then exits the application program. When the Personadaq library is loaded, it

invokes the default error handler whenever it encounters an error. The error handler may be changed with daqSetErrorHandler.


daqFormatError

DLL Function

daqFormatError(daqError errorNum, PCHAR msg);

C

daqFormatError(DaqError errorNum, PCHAR msg);

Visual BASIC

VBdaqFormatError&(ByVal errorNum&, ByVal msg&)

Delphi

daqFormatError(errorNum:daqerror; msg:PCHAR);

daqError

Personal Daq API error code

Parameters

msg

Pointer to a string to return the error text

Returns

DerrNoError

No error

See Also

daqSetDefaultErrorHandler, daqSetErrorHandler, daqProcessError, daqGetLastError,

daqDefaultErrorHandler

Program References

None

Used With

All devices

Description

daqFormatError

returns the text-string equivalent for the specified error condition. The error condition is specified by the daqError

parameter. The error text will be returned in the character string pointed to by the msg parameter. The character string space must have
been previously allocated by the application before calling this function. The allocated character string should be, at minimum, 64 bytes in
length.

For more information on specific error codes refer to the API Error Codes on page page B-33.


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