Help: Finding Cd-Rom Drive

Hello Every One,

I have a question. How I can find all of the Cd Disk Dirve of destination pc in vb.net2003? I'm trying to access the cd becuase want to execute just if the cd is in the Cd-Rom Drive. Ok?

Please, Help me if you can.

Thanks,
Farhad

I believe you are going to have to use the System.Management Namespace. Which according to MSDN provides access to a rich set of management information and management events about the system, devices, and applications instrumented to the Windows Management Instrumentation (WMI) infrastructure. Applications and services can query for interesting management information (such as how much free space is left on the disk, what is the current CPU utilization, which database a certain application is connected to, and much more), using classes derived from ManagementObjectSearcher and ManagementQuery, or subscribe to a variety of management events using the ManagementEventWatcher class. The accessible data can be from both managed and unmanaged components in the distributed environment.

http://msdn2.microsoft.com/en-us/lib...t_members.aspx

This could be one of the ways

VB Code:

For Each dInfo As System.IO.DriveInfo In System.IO.DriveInfo.GetDrives()
            If dInfo.DriveType = System.IO.DriveType.CDRom Then
                MessageBox.Show(dInfo.Name & " is a " & IO.DriveType.CDRom.ToString)
            End If
        Next

Edit**

Thanks alot.

but System.IO.DriveInfo is not defined. Are you sure this codes are for VB.net 2003?

Farhad

well I am not! I use VB.2005. I guse you got to fallow Jumpercables suggestion.

DriveInfo is not present under VS 2003.

You would have to use WMI scripting, or Management Class objects for this.

VB Code:

Dim mcls As System.Management.ManagementClass = New System.Management.ManagementClass("Win32_LogicalDisk")
        Dim mobcol As System.Management.ManagementObjectCollection = mcls.GetInstances()
        For Each mob As System.Management.ManagementObject In mobcol
            If Convert.ToInt32(mob("DriveType")) = 5 Then
                Dim tmpStr As String
                tmpStr = "CDROM Device: " & mob("Name") & ControlChars.NewLine & "Name of CD inserted: "
                If mob("Volumename") = "" Then
                    tmpStr = tmpStr & "NONE"
                Else
                    tmpStr = tmpStr & mob("VolumeName")
                End If
                MsgBox(tmpStr)
            End If
        Next

Quote:

---

Originally Posted by farhad_tmmt

Thanks alot.

but System.IO.DriveInfo is not defined. Are you sure this codes are for VB.net 2003?

Farhad

---

Hi,

You could try this in VB.net 2003;

VB Code:

'Use WMI to find all the CDRom Drives and store a few properties.
    'We need the Path to get a handle on the drive (we acually use the "//./" & path
    Private Sub GetDrives()
        Dim cdRomClass As ManagementClass = New ManagementClass("Win32_CDROMDrive")
        Dim cdRomDrives As ManagementObjectCollection = cdRomClass.GetInstances
        Dim cdromDrivesEnumerator As ManagementObjectCollection.ManagementObjectEnumerator = _
            cdRomDrives.GetEnumerator
        _drives = New ArrayList
        While cdromDrivesEnumerator.MoveNext
            Dim thisCDRom As CDROM
            Dim cdRomDrive As ManagementObject = _
               CType(cdromDrivesEnumerator.Current, ManagementObject)
            thisCDRom.Caption = CType(cdRomDrive("Caption"), String)
            thisCDRom.Path = CType(cdRomDrive("Drive"), String)
            thisCDRom.DevicePath = "//./" & thisCDRom.Path
            _drives.Add(thisCDRom)
        End While

Hope it helps,

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