Measurement Computing Data Acquisition Systems rev.10.4 - Manual (Page 278)

daqSetErrorHandler
Also See: daqSetDefaultErrorHandler,
daqDefaultErrorHandler,
daqGetLastError, daqProcessError
Format
vdaqSetErrorHandler (handle, handler)
Purpose
daqSetErrorHandler specifies the routine to call when an error occurs in any function for the specified device.
Parameter Summary
Parameter Type Description
handle DaqHandleT Handle to the device to which to attach the specified error
handler
handler DaqErrorHandlerFPT Pointer to a user-defined error handler function
Parameter Values
handle: obtained from the daqOpen function
handler: a pointer to a user-defined function
Returns
DerrNoError No error
Function Usage
The daqSetErrorHandler function specifies an error handler for the device currently open with the handle
parameter. It should be used if it is desirable to use a error handler other than the default error handler for a specific
device. This function allows the application to specify its own routine to be called when errors occur on processing
commands for the device. If it is desirable to have no action occur when a command error is detected on the device,
use this function with a null (0) parameter. The default error routine is daqDefaultErrorHandler.
For more details on error messages refer to the Daq Error Table.
Prototypes
C/C++
daqSetErrorHandler(DaqHandleT handle, DaqErrorHandlerFPT handler);
Visual BASIC
VBdaqSetErrorHandler&(ByVal handle&, ByVal handler&)
Program References
DAQADCEX05.CPP, DAQADCEX06.CPP, DAQEX.FRM (VB)
4.5-48 Daq API Command Reference
908794
Programmer’s Manual