Hi,

I want to detect a CD drive using C#. I have to get a message when the CD is inserted in a CD drive and Also get a message when a CD is removed. I also want to open a cd in my application. Can any anyone give me an idea to do this?

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Hi,

You can do this by using the following code. This code helps you to to detect a cd drive.

using System.Management;

private void Form1_Load(object sender, EventArgs e)
{
Form1 we = new Form1();
ManagementEventWatcher w = null;
WqlEventQuery q;
ManagementOperationObserver observer = new
ManagementOperationObserver();

// Bind to local machine
ConnectionOptions opt = new ConnectionOptions();
opt.EnablePrivileges = true; //sets required privilege
ManagementScope scope = new ManagementScope("root\\CIMV2", opt);

try
{
q = new WqlEventQuery();
q.EventClassName = "__InstanceModificationEvent";
q.WithinInterval = new TimeSpan(0, 0, 1);

// DriveType - 5: CDROM
q.Condition = @"TargetInstance ISA 'Win32_LogicalDisk' and
TargetInstance.DriveType = 5";
w = new ManagementEventWatcher(scope, q);

// register async. event handler
w.EventArrived += new EventArrivedEventHandler(we.CDREventArrived);
w.Start();

// Do something usefull,block thread for testing
Console.ReadLine();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
finally
{
w.Stop();
}
}
public void CDREventArrived(object sender, EventArrivedEventArgs e)
{
// Get the Event object and display it
PropertyData pd = e.NewEvent.Properties["TargetInstance"];

if (pd != null)
{
ManagementBaseObject mbo = pd.Value as ManagementBaseObject;

// if CD removed VolumeName == null
if (mbo.Properties["VolumeName"].Value != null)
{
MessageBox.Show("CD has been inserted");
}
else
{
MessageBox.Show("CD has been ejected");
}
}
}

Thanks..

S.Balasubramanian..