I'm exploring MSMQ services, and I wrote a simple console client-server application that sends each of the client's keystrokes to the server. Whenever hit a control character (DEL, ESC, INS, etc) the server understandably throws an error. However, whenever I type a space character, the server receives the packet but doesn't throw an error and doesn't display the space.
Server:
namespace QIM
{
class Program
{
const string QUEUE = @".\Private$\qim";
static MessageQueue _mq;
static readonly object _mqLock = new object();
static XmlSerializer xs;
static void Main(string[] args)
{
lock (_mqLock)
{
if (!MessageQueue.Exists(QUEUE))
_mq = MessageQueue.Create(QUEUE);
else
_mq = new MessageQueue(QUEUE);
}
xs = new XmlSerializer(typeof(string));
_mq.BeginReceive(new TimeSpan(0, 1, 0), new object(), OnReceive);
while (Console.ReadKey().Key != ConsoleKey.Escape) { }
}
static void OnReceive(IAsyncResult result)
{
Message msg;
lock (_mqLock)
{
try
{
msg = _mq.EndReceive(result);
Console.Write(".");
Console.Write(xs.Deserialize(msg.BodyStream));
}
catch (Exception ex)
{
Console.Write(ex);
}
}
_mq.BeginReceive(new TimeSpan(0, 1, 0), new object(), OnReceive);
}
}
}
Client:
namespace QIM_Client
{
class Program
{
const string QUEUE = @".\Private$\qim";
static MessageQueue _mq;
static void Main(string[] args)
{
if (!MessageQueue.Exists(QUEUE))
_mq = MessageQueue.Create(QUEUE);
else
_mq = new MessageQueue(QUEUE);
ConsoleKeyInfo key = new ConsoleKeyInfo();
while (key.Key != ConsoleKey.Escape)
{
key = Console.ReadKey();
_mq.Send(key.KeyChar.ToString());
}
}
}
}
Client Input:
Testing, Testing...
Server Output:
.T.e.s.t.i.n.g.,..T.e.s.t.i.n.g......
You'll notice that the space character sends a message, but the character isn't displayed.
