private OpcServerConnectResult DoConnect(string progid)
{
OpcServerConnectResult result = new OpcServerConnectResult {
IsSuccess = false
};
try
{
_theSrv.Connect(progid);
Thread.Sleep(100);
_theSrv.SetClientName("DirectOPC " + Process.GetCurrentProcess().Id); // set my client name (exe+process no)
SERVERSTATUS sts;
_theSrv.GetStatus(out sts);
// get infos about OPC server
StringBuilder sb = new StringBuilder(sts.szVendorInfo, 200);
sb.AppendFormat(" ver:{0}.{1}.{2}", sts.wMajorVersion, sts.wMinorVersion, sts.wBuildNumber);
result.ServerInfo = sb.ToString();
// set status to show server state
result.SbpTimeStart = DateTime.FromFileTime(sts.ftStartTime);
result.SbpStatus = sts.eServerState.ToString();
result.IsSuccess = true;
return(result);
}
catch (COMException ex)
{
result.ErrorText = ex.Message;
return(result);
}
}
public bool DoInit(OpcServerDescription opcServerDescription)
{
_theSrv = new OpcServer();
OpcNamespacesTree = new TreeNode <string>(_rootname);
// ---------------
OpcServerConnectResult connectResult = DoConnect(opcServerDescription.ProgId);
if (!connectResult.IsSuccess)
{
return(false);
}
OpcConnected = true;
// add event handler for server shutdown
_theSrv.ShutdownRequested += (e, args) =>
{
CallOnServerShutdown(args.shutdownReason);
};
// precreate the only OPC group in this example
if (!CreateGroup())
{
return(false);
}
// browse the namespace of the OPC-server
if (!DoBrowse())
{
return(false);
}
return(true);
}