Measurement Computing Personal Daq rev.6.0 - Manual (Page 158)

B-26 API Commands Appendix B, 887095 Personal Daq User’s Manual
daqProcessError
DLL Function daqProcessError(DaqHandleT handle, daqError errCode);
C daqProcessError(DaqHandleT handle, DaqError errCode);
Visual BASIC VBdaqProcessError&(ByVal handle&, ByVal errCode&)
Delphi daqProcessError(handle:DaqHandleT; errCode:daqError)
handle Handle to the device for which the specified error is to be processed. Parameters
errCode Specifies the device error code to process
Returns Refer to API Error Codes on page page B-33.
See Also daqSetDefaultErrorHandler, daqGetLastError, daqDefaultErrorHandler
Program References None
Used With All devices
Description
daqProcessError allows an application to initiate an error for processing by the driver. This command can be used when it is desirable
for the application to initiate processing for a device-defined error.
daqSetDefaultErrorHandler
DLL Function daqSetDefaultErrorHandler(daqErrorHandlerFPT handler);
C daqSetDefaultErrorHandler(DaqErrorHandlerFPT handler);
Visual BASIC VBdaqSetDefaultErrorHandler&(ByVal handler&)
Delphi daqSetDefaultErrorHandler(handler:daqErrorHandlerFPT)
Parameters handler Pointer to a user-defined error handler function.
Returns DerrNoError - No error
See Also daqDefaultErrorHandler, daqGetLastError, daqProcessError, daqSetErrorHandler
Program References ADCEX1.C, FREQEX1.C, PULSEEX1.C, MULTEX1.C, DIGEX1.C, INITEX1.C, DAQEX.FRM (VB),
DAQEX.PAS (Delphi)
Used With All devices
Description
daqSetDefaultErrorHandler allows you to set the driver to use the default error handler specified for all devices.
daqSetErrorHandler
DLL Function daqSetErrorHandler(DaqHandleT handle, daqErrorHandlerFPT handler);
C daqSetErrorHandler(DaqHandleT handle, DaqErrorHandlerFPT handler);
Visual BASIC VBdaqSetErrorHandler&(ByVal handle&, ByVal handler&)
Delphi daqSetErrorHandler(handle:DaqHandleT; handler:daqErrorHandlerFPT)
handle Handle to the device to which to attach the specified error handler Parameters
handler Pointer to a user defined error handler function.
Returns DerrNoError No error
See Also daqSetDefaultErrorHandler, daqDefaultErrorHandler, daqGetLastError, daqProcessError
Program References ADCEX1.C, FREQEX1.C, PULSEEX1.C, MULTEX1.C, DIGEX1.C, INITEX1.C, DAQEX.FRM (VB),
DAQEX.PAS (Delphi)
Used With
Description
daqSetErrorHandler specifies the routine to call when an error occurs in any command. The default routine displays a message and
then terminates the program. If this is not desirable, use this command to specify your own routine to be called when errors occur. If you
want no action to occur when a command error is detected, use this command with a null (0) parameter. The default error routine is
daqDefaultHandler
.