Error Info

Clears the error code and error description for the IVI session. If the user specifies a valid IVI session for vi, this function clears the error information for the session. If the user passes VI_NULL for vi, this function clears the error information for the current execution thread. If the ViSession parameter is an invalid session, the function does nothing and returns an error.
The function clears the error code by setting it to VI_SUCCESS. If the error description string is non-NULL, the function de-allocates the error description string and sets the address to VI_NULL.

Retrieves and then clears the IVI error information for the session or the current execution thread unless bufferSize is 0, in which case the function does not clear the error information. By passing 0 for the buffer size, you can ascertain the buffer size required to get the entire error description string and then call the function again with a sufficiently large buffer size.

Converts a status code returned by an instrument driver function into a user-readable string.

Reads an error code and a message from the instrument's error queue.