我有一个C#主窗口窗口,它监听UDP端口的消息。收到所需信息后,它将启动另一个表单(视频表单)。这个录像带由一个可以播放视频的axWindowsMediaPlayer1组成。ActiveX控件'6bf52a52-394a-11d3-b153-00c04f79faa6'不能实例化,因为当前线程不在单线程公寓
但是无论何时它收到消息启动视频窗体,它将收到一个UDP错误“ActiveX控件”6bf52a52-394a-11d3-b153-00c04f79faa6'不能实例化,因为当前线程不是在单线程公寓“。
private void initCommunication()
{
CheckForIllegalCrossThreadCalls = false;
try
{
// For receiving messages
//We are using UDP sockets
serverSocket = new Socket(AddressFamily.InterNetwork,
SocketType.Dgram, ProtocolType.Udp);
//Assign the any IP of the machine and listen on port number
IPEndPoint ipEndPoint2 = new IPEndPoint(IPAddress.Any, listeningPort);
//Bind this address to the server
serverSocket.Bind(ipEndPoint2);
IPEndPoint ipeSender = new IPEndPoint(IPAddress.Any, 0);
//The epSender identifies the incoming clients
EndPoint epSender = (EndPoint)ipeSender;
//Start receiving data
serverSocket.BeginReceiveFrom(byteData, 0, byteData.Length,
SocketFlags.None, ref epSender, new AsyncCallback(OnReceive), epSender);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "UDP Error",
MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
#region UDP OnReceive
private void OnReceive(IAsyncResult ar)
{
try
{
IPEndPoint ipeSender = new IPEndPoint(IPAddress.Any, 0);
EndPoint epSender = (EndPoint)ipeSender;
serverSocket.EndReceiveFrom(ar, ref epSender);
//Transform the array of bytes received from the user into an
//intelligent form of object Data
Data msgReceived = new Data(byteData);
switch (msgReceived.strMessage)
{
case "1":
btnPlayVideo_Click(null,null);
break;
}
txtLog.Text += msgReceived.strName + " : " + msgReceived.strMessage + "\r\n";
txtLog.SelectionStart = txtLog.Text.Length;
txtLog.ScrollToCaret();
serverSocket.BeginReceiveFrom(byteData, 0, byteData.Length, SocketFlags.None, ref epSender,
new AsyncCallback(OnReceive), epSender);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "UDP OnReceive Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
#endregion
的误差在这条线)抛出 axWindowsMediaPlayer1 =新AxWMPLib.AxWindowsMediaPlayer(;
我在网上搜索过,如何创建一个STA?
我的主要方法已经有[STAThread]了。默认情况下,由C#窗体窗体创建的program.cs已经有了它... – humansg
@humansg然后哪个线程引发这个异常? –
可能是异步udp线程? – humansg