public int[] SetDataTypes(int[] serverHandles, short[] requestedDataTypes)
{
var ppErrors = IntPtr.Zero;
ItemMgt.SetDatatypes(serverHandles.Length, serverHandles, requestedDataTypes, out ppErrors);
return(ComUtils.GetInt32s(ref ppErrors, serverHandles.Length, true));
}
public int[] SetActiveState(int[] serverHandles, bool isActive)
{
var ppErrors = IntPtr.Zero;
ItemMgt.SetActiveState(serverHandles.Length, serverHandles, isActive ? 1 : 0, out ppErrors);
return(ComUtils.GetInt32s(ref ppErrors, serverHandles.Length, true));
}
public int[] SetClientHandles(int[] serverHandles, int[] clientHandles)
{
var ppErrors = IntPtr.Zero;
ItemMgt.SetClientHandles(serverHandles.Length, serverHandles, clientHandles, out ppErrors);
return(ComUtils.GetInt32s(ref ppErrors, serverHandles.Length, true));
}
public int[] RemoveItems(int[] serverHandles)
{
var ppErrors = IntPtr.Zero;
ItemMgt.RemoveItems(serverHandles.Length, serverHandles, out ppErrors);
return(ComUtils.GetInt32s(ref ppErrors, serverHandles.Length, true));
}
public OpcItemResult[] AddItems(OpcItemDefine[] items)
{
var rawItems = items.Select(item => new OPCITEMDEF
{
bActive = item.IsActive ? 1 : 0,
hClient = item.ClientHandle,
szAccessPath = item.AccessPath,
szItemID = item.ItemId,
vtRequestedDataType = item.RequestedDataType
})
.ToArray();
var ppAddResults = IntPtr.Zero;
var ppErrors = IntPtr.Zero;
ItemMgt.AddItems(items.Length, rawItems, out ppAddResults, out ppErrors);
var errors = ComUtils.GetInt32s(ref ppErrors, items.Length, true);
var results = GetStructures <OPCITEMRESULT>(ppAddResults, items.Length).Zip(errors, (r, e) =>
{
try
{
if (r.pBlob != IntPtr.Zero)
{
Marshal.FreeCoTaskMem(r.pBlob);
r.pBlob = IntPtr.Zero;
}
return(new OpcItemResult
{
AccessRights = r.dwAccessRights,
CanonicalDataType = r.vtCanonicalDataType,
ErrorCode = e,
ServerHandle = r.hServer
});
}
catch (Exception ex)
{
return(new OpcItemResult {
ErrorCode = ex.HResult
});
}
})
.ToArray();
return(results);
}
