xmlSetGenericErrorFunc: : the new error handling context : the new handler function
Function to reset the handler and the error context for out of context error messages. This simply means that will be called for subsequent error messages while not parsing nor validating. And will be passed as first argument to One can simply force messages to be emitted to another FILE * than stderr by setting to this file handle and to NULL. For multi-threaded applications, this must be set separately for each thread.