public void CreateGroupEnumerator(OPCENUMSCOPE dwScope, ref Guid riid, out object ppUnk)
{
OpcCom.Da.Wrapper.Server server;
Monitor.Enter(server = this);
try
{
switch (dwScope)
{
case OPCENUMSCOPE.OPC_ENUM_PUBLIC_CONNECTIONS:
case OPCENUMSCOPE.OPC_ENUM_PUBLIC:
if (riid != typeof(OpcRcw.Comn.IEnumString).GUID)
{
if (riid != typeof(IEnumUnknown).GUID)
{
throw new ExternalException("E_NOINTERFACE", -2147467262);
}
ppUnk = new EnumUnknown(null);
}
else
{
ppUnk = new OpcCom.Da.Wrapper.EnumString(null);
}
return;
}
if (riid == typeof(IEnumUnknown).GUID)
{
ppUnk = new EnumUnknown(this.m_groups);
}
else
{
if (riid != typeof(OpcRcw.Comn.IEnumString).GUID)
{
throw new ExternalException("E_NOINTERFACE", -2147467262);
}
ArrayList strings = new ArrayList(this.m_groups.Count);
foreach (Group group in this.m_groups.Values)
{
strings.Add(group.Name);
}
ppUnk = new OpcCom.Da.Wrapper.EnumString(strings);
}
}
catch (Exception exception)
{
throw CreateException(exception);
}
finally
{
Monitor.Exit(server);
}
}
public void BrowseOPCItemIDs(OPCBROWSETYPE dwBrowseFilterType, string szFilterCriteria, short vtDataTypeFilter, int dwAccessRightsFilter, out OpcRcw.Da.IEnumString ppIEnumString)
{
OpcCom.Da.Wrapper.Server server;
Monitor.Enter(server = this);
try
{
ItemIdentifier itemID = null;
if (this.m_browseStack.Count > 0)
{
itemID = (ItemIdentifier)this.m_browseStack.Peek();
}
ArrayList hits = new ArrayList();
this.Browse(itemID, dwBrowseFilterType, szFilterCriteria, vtDataTypeFilter, dwAccessRightsFilter, hits);
ppIEnumString = new OpcCom.Da.Wrapper.EnumString(hits);
}
catch (Exception exception)
{
throw CreateException(exception);
}
finally
{
Monitor.Exit(server);
}
}
