Measurement Computing Personal Daq rev.6.0 - Manual (Page 152)

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.