Clears all the custom fields added to the request to be via AddFieldToRequest.
- int ClearAllFieldsToRequest(void)
No errors; all custom fields were cleared.
Returned if the port is in the process of shutting down.
The port is not valid (either CreateClient has not been called or DestroyClient has been called prior to this call).
An exception occurred while processing the request.
None of the custom fields added prior to making this call will appear in the call log.