private void Advise()
{
if (m_connection == null)
{
m_connection = new ConnectionPoint(m_subscription, typeof(IOPCEventSink).GUID);
m_connection.Advise(m_callback);
}
}
/// <summary>
/// Establishes a connection point callback with the COM server.
/// </summary>
private void Advise()
{
if (m_connection == null)
{
m_connection = new ConnectionPoint(m_group, typeof(OpcRcw.Da.IOPCDataCallback).GUID);
m_connection.Advise(m_callback);
}
}
/// <summary>
/// Establishes a connection point callback with the COM server.
/// </summary>
private void Advise()
{
if (connection_ == null)
{
connection_ = new ConnectionPoint(subscription_, typeof(IOPCEventSink).GUID);
connection_.Advise(callback_);
}
}
internal ServerPrivate(object group)
{
Guid iid = Guid.Empty;
iid = typeof(IOPCDataCallback).GUID;
OpcRcw.Comn.IConnectionPointContainer ConnectionPointContainer = (OpcRcw.Comn.IConnectionPointContainer)group;
OpcRcw.Comn.IConnectionPoint ConnectionPoint;
ConnectionPointContainer.FindConnectionPoint(ref iid, out ConnectionPoint);
ConnectionPoint.Advise(this, out m_ConnectionPointCookie);
}
/// <summary>
/// Initializes the object with the containing subscription object.
/// </summary>
public ComDaDataCallback(ComDaGroup group)
{
// save group.
m_group = group;
// create connection point.
m_connectionPoint = new ConnectionPoint(group.Unknown, typeof(OpcRcw.Da.IOPCDataCallback).GUID);
// advise.
m_connectionPoint.Advise(this);
}
public SubscriptionPrivate(DataChange fct, int ClientHandle, object group)
{
m_hClient = ClientHandle;
m_fct = fct;
Guid iid = Guid.Empty;
iid = typeof(IOPCDataCallback).GUID;
OpcRcw.Comn.IConnectionPointContainer ConnectionPointContainer = (OpcRcw.Comn.IConnectionPointContainer)group;
OpcRcw.Comn.IConnectionPoint ConnectionPoint;
ConnectionPointContainer.FindConnectionPoint(ref iid, out ConnectionPoint);
ConnectionPoint.Advise(this, out m_ConnectionPointCookie);
}