<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 TRANSITIONAL//EN"> <HTML> <HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; CHARSET=UTF-8"> <META NAME="GENERATOR" CONTENT="GtkHTML/3.16.2"> </HEAD> <BODY> Hi, I am little confused about these api's such as virConnCopyLastError and virCopyLastError. Please correct my understanding. 1. virConnCopyLastError expects 2 parameter connection and virErrorPtr, This is used only after getting successful connection, If i call this without connection say it is NULL, I hope it will return -1 if no what will it return? 2. virCopyLastError expects on 1 parameter virErrorPtr, this can be used any time, even before getting connection, If it is No. Then when will i use virCopyLastError api? 3. If virConnectOpen/virConnectOpenReadOnly fails which api should be called to know the error code? <TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%"> <TR> <TD> Thanks & Regards --Ajish </TD> </TR> </TABLE> </BODY> </HTML>