private void onUdpRecv()
{
btnStartUDPServ.ImageIndex = 1;
cbUdpClientPort.Enabled = false;
toolTip1.SetToolTip(btnStartUDPServ, "关闭接收");
UDPAddr ua = getCurrentIPAndPort();
if (udpClient == null) //
{
IPEndPoint localIpep = new IPEndPoint(IPAddress.Parse("0.0.0.0"), ua.port);
udpClient = new UdpClient(localIpep);
}
IPEndPoint remotePoint = new IPEndPoint(IPAddress.Any, 0);
while (true)
{
try {
byte[] data = udpClient.Receive(ref remotePoint);
parsePack(data, data.Length);
} catch (Exception e) {
showRedTip(e.Message);
break;
}
}
recvThreadRunning = false;
if (closeFlag)
{
return;
}
btnStartUDPServ.ImageIndex = 0;
cbUdpClientPort.Enabled = true;
toolTip1.SetToolTip(btnStartUDPServ, "启动接收");
udpClient = null;
}
private bool sendUDPData(byte[] data, int offset, int length)
{
if (length > 8192)
{
showRedTip("UDP 最大包长度不能超过 8192");
return(false);
}
UDPAddr ua = getCurrentIPAndPort();
IPEndPoint ipep = new IPEndPoint(ua.ip, ua.port);
if (udpClient == null)
{
udpClient = new UdpClient();
}
try {
udpClient.Send(data, length, ipep);
} catch (Exception e) {
showRedTip(e.Message);
return(false);
}
return(true);
}
