public virtual void Unregister()
{
if (IsDisposed)
{
throw new ObjectDisposedException(this.GetType().ToString());
}
if (!IsRegistered)
{
throw new InvalidOperationException(Resources.NotRegisteredMessage);
}
// Unregister the service name.
RegistrationManager.Unregister(_InstanceId, _ServiceHandle);
// Unregister this server from the context so that it will not receive DDEML callbacks.
_Context.UnregisterServer(this);
// Indicate that the service name is no longer registered.
_ServiceHandle = IntPtr.Zero;
_InstanceId = 0;
// Raise the StateChange event.
if (StateChange != null)
{
StateChange(this, EventArgs.Empty);
}
}
protected virtual void Dispose(bool disposing)
{
if (!_Disposed)
{
_Disposed = true;
if (disposing)
{
if (IsRegistered)
{
// Unregister the service name.
RegistrationManager.Unregister(_InstanceId, _ServiceHandle);
// Unregister this server from the context so that it will not receive DDEML callbacks.
_Context.UnregisterServer(this);
// Indicate that the service name is no longer registered.
_ServiceHandle = IntPtr.Zero;
_InstanceId = 0;
// Raise the StateChange event.
foreach (EventHandler handler in StateChange.GetInvocationList())
{
try
{
handler(this, EventArgs.Empty);
}
catch
{
// Swallow any exception that occurs.
}
}
}
}
else
{
if (IsRegistered)
{
// Unregister the service name.
RegistrationManager.Unregister(_InstanceId, _ServiceHandle);
}
}
}
}
