private void BtnHello_Click(object sender, EventArgs e)
{
if (c != null && !c.IsClosed())
{
// Closing a connection
c.Close();
TxtLog.Text += "\r\nDisconnected.";
return;
}
TxtLog.Text = "Initialized";
// Create a new connection factory to create
// a connection.
ConnectionFactory cf = new ConnectionFactory();
c = cf.CreateConnection();
TxtLog.Text += "\r\nSending hello world";
ChannelMessage msg = new ChannelMessage();
msg.From = "csharp";
msg.Message = "Hello, World!";
msg.ChanNum = 5;
c.Publish("world.channel_message", msg.ToByteArray());
// Simple synchronous subscriber
sSync = c.SubscribeSync("world.channel_message");
TxtLog.Text += "\r\nWaiting for message...";
TmrMessage.Enabled = true;
}
public bool WriteMessage(ChannelMessage msg)
{
var data = msg.ToByteArray();
var len = 4 + data.Length;
var ptr = Marshal.AllocHGlobal(len);
Marshal.WriteInt32(ptr, 0, data.Length);
Marshal.Copy(data, 0, new IntPtr(ptr.ToInt32() + 4), data.Length);
var ret = entryPoints.VirtualChannelWrite(OpenChannel, ptr, (uint)len, ptr);
return(ret == ChannelReturnCodes.Ok);
}
public bool WriteMessage(ChannelMessage msg)
{
var data = msg.ToByteArray();
int written;
var ret = WtsApi32.WTSVirtualChannelWrite(mHandle, data, data.Length, out written);
if (ret)
{
return(true);
}
var ex = new Win32Exception();
if (!SeenHello && ex.NativeErrorCode == 1 /* Incorrect Function */)
{
return(false);
}
Log("RDP Virtual channel Write Failed: " + ex.Message);
return(false);
}
public void PublishMessage(string channel, string messageString)
{
var channelMessage = new ChannelMessage()
{
User = _user, Password = _pwd, Channel = channel, MessageString = messageString
};
_sendMessageQueue.Enqueue(new Database.Message()
{
Channel = channelMessage.Channel, ByteMessageString = Encoding.ASCII.GetString(channelMessage.ToByteArray())
});
SendMessages();
}
