Identifying a CD Drive

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G

Guest

Is there a way to programmatically identify a local CD drive/drives from a
local machine. Currently, I am calling
System.IO.Directory.GetLogicalDrives() - but this lists all the drives on the
local machine. What is the best way to identify the CD drive(s)?
 
Is there a way to programmatically identify a local CD
drive/drives from a local machine. Currently, I am calling
System.IO.Directory.GetLogicalDrives() - but this lists all the
drives on the local machine. What is the best way to identify
the CD drive(s)?
Click to expand...

Greg,

You can use the Windows API function GetDriveType:

// GetDriveType return values.
public enum DriveType : int
{
Unknown = 0,
NoRoot = 1,
Removable = 2,
Localdisk = 3,
Network = 4,
CD = 5,
RAMDrive = 6
}

[DllImport("kernel32.dll", CharSet = CharSet.Auto)]
public static extern int GetDriveType(string lpRootPathName);


// Example:

if (GetDriveType("E:") == (int) DriveType.CD)
...
 
Hi Greg

You can use WMI, here is a sample that checks to see if a CD-ROM is in any
CD drive.

-- Begin Code --
using System;
using System.Management;

class App
{
public static void Main()
{
SelectQuery query = new SelectQuery( "select * from win32_logicaldisk
where drivetype=5" );
ManagementObjectSearcher searcher = new ManagementObjectSearcher(query);

foreach( ManagementObject mo in searcher.Get() )
{
// If both properties are null I suppose there's no CD
if( ( mo["volumename"] != null ) || ( mo["volumeserialnumber"] !=
null ) )
{
Console.WriteLine( "CD is named: {0}", mo["volumename"] );
Console.WriteLine( "CD Serial Number: {0}",
mo["volumeserialnumber"] );
}
else
{
Console.WriteLine( "No CD in Unit" );
}
}

// Here to stop app from closing
Console.WriteLine( "\nPress Return to exit." );
Console.Read();
}
}
--End Code--

Hope this helps

Publicjoe

C# Tutorial at http://www.publicjoe.f9.co.uk/csharp/tut.html
C# Ebook at http://www.publicjoe.f9.co.uk/csharp/samples/ebook.html
VB Tutorial at http://www.publicjoe.f9.co.uk/vbnet/vbnet.html
VB Ebook at http://www.publicjoe.f9.co.uk/vbnet/samples/ebook.html
Mirrors at http://www.dowhileloop.com/publicjoe/ and
http://www.publicjoe.justbe.com/

Useful Articles at http://www.madsally.co.uk
 
Thanks Chris,

I was leaning this way but I wanted to see if there was a .NET function l
could use to accomplish the same thing. I appreciate your input - enjoyed
your web page too, good insights.

Greg

Chris R. Timmons said:
Is there a way to programmatically identify a local CD
drive/drives from a local machine. Currently, I am calling
System.IO.Directory.GetLogicalDrives() - but this lists all the
drives on the local machine. What is the best way to identify
the CD drive(s)?
Click to expand...

Greg,

You can use the Windows API function GetDriveType:

// GetDriveType return values.
public enum DriveType : int
{
Unknown = 0,
NoRoot = 1,
Removable = 2,
Localdisk = 3,
Network = 4,
CD = 5,
RAMDrive = 6
}

[DllImport("kernel32.dll", CharSet = CharSet.Auto)]
public static extern int GetDriveType(string lpRootPathName);


// Example:

if (GetDriveType("E:") == (int) DriveType.CD)
...
Click to expand...
 
Thanks! I'll have to look more into WMI as I've never used it before.

Greg

Publicjoe said:
Hi Greg

You can use WMI, here is a sample that checks to see if a CD-ROM is in any
CD drive.

-- Begin Code --
using System;
using System.Management;

class App
{
public static void Main()
{
SelectQuery query = new SelectQuery( "select * from win32_logicaldisk
where drivetype=5" );
ManagementObjectSearcher searcher = new ManagementObjectSearcher(query);

foreach( ManagementObject mo in searcher.Get() )
{
// If both properties are null I suppose there's no CD
if( ( mo["volumename"] != null ) || ( mo["volumeserialnumber"] !=
null ) )
{
Console.WriteLine( "CD is named: {0}", mo["volumename"] );
Console.WriteLine( "CD Serial Number: {0}",
mo["volumeserialnumber"] );
}
else
{
Console.WriteLine( "No CD in Unit" );
}
}

// Here to stop app from closing
Console.WriteLine( "\nPress Return to exit." );
Console.Read();
}
}
--End Code--

Hope this helps

Publicjoe

C# Tutorial at http://www.publicjoe.f9.co.uk/csharp/tut.html
C# Ebook at http://www.publicjoe.f9.co.uk/csharp/samples/ebook.html
VB Tutorial at http://www.publicjoe.f9.co.uk/vbnet/vbnet.html
VB Ebook at http://www.publicjoe.f9.co.uk/vbnet/samples/ebook.html
Mirrors at http://www.dowhileloop.com/publicjoe/ and
http://www.publicjoe.justbe.com/

Useful Articles at http://www.madsally.co.uk



GregT said:
Is there a way to programmatically identify a local CD drive/drives from a
local machine. Currently, I am calling
System.IO.Directory.GetLogicalDrives() - but this lists all the drives on the
local machine. What is the best way to identify the CD drive(s)?
Click to expand...
Click to expand...
 
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