制作opc服务器,力控服务器怎样做为OPC服务器,供其他OPC客户端程序访问

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public void ListAll(Guid catid, out OpcServers[] serverslist)

{

serverslist = null;

Dispose();

Guid guid = new Guid(13486D51-4821-11D2-A494-3CB306C10000);

Type typeoflist = Type.GetTypeFromCLSID(guid);

OPCListObj = Activator.CreateInstance(typeoflist);

ifList = (IOPCServerList)OPCListObj;

if (ifList == null)

Marshal.ThrowExceptionForHR(HRESULTS.E_ABORT);

ifList.EnumClassesOfCategories(1, ref catid, 0, ref catid, out EnumObj);

if (EnumObj == null)

Marshal.ThrowExceptionForHR(HRESULTS.E_ABORT);

ifEnum = (IEnumGUID)EnumObj;

if (ifEnum == null)

Marshal.ThrowExceptionForHR(HRESULTS.E_ABORT);

int maxcount = 300;

IntPtr ptrGuid = Marshal.AllocCoTaskMem(maxcount * 16);

int count = 0;

ifEnum.Next(maxcount, ptrGuid, out count);

if (count 1)

{ Marshal.FreeCoTaskMem(ptrGuid); return; }

serverslist = new OpcServers[count];

byte[] guidbin = new byte[16];

int runGuid = (int)ptrGuid;

for (int i = 0; i count; i++)

{

serverslist[i] = new OpcServers();

Marshal.Copy((IntPtr)runGuid, guidbin, 0, 16);

serverslist[i].ClsID = new Guid(guidbin);

ifList.GetClassDetails(ref serverslist[i].ClsID,

out serverslist[i].ProgID, out serverslist[i].ServerName);

runGuid += 16;

}

Marshal.FreeCoTaskMem(ptrGuid);

Dispose();

}

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