private void openDeviceCallback(IAsyncResult r)
{
AsyncResult aResult = (AsyncResult)r;
openDviceDelegate d = (openDviceDelegate)aResult.AsyncDelegate;
string id = d.EndInvoke(r);
//openDviceDelegate d = ((openDviceDelegate)r.).EndInvoke(r);
E7.iDevice = Convert.ToInt32(id);
((Control)r.AsyncState).Invoke(new Action(() =>
{
MessageBox.Show(id);
}));
Console.WriteLine("操作完成!" + r.AsyncState);
}
/// <summary>
///
/// </summary>
/// <param name="Idl">显示的主窗体，用于回调函数显示值</param>
/// <returns></returns>
public string openDevice(Control Idl)
{
try
{
openDviceDelegate openDvice = initDevice;
IAsyncResult result = openDvice.BeginInvoke(openDeviceCallback, Idl);
}
catch
{
}
//string idDevice = openDvice.EndInvoke(result);
//return idDevice;
return("");
}
