cd insert/remove events

[sanjana]

hi
i m trying to detect CD insert removal events via the system.management
n i m using in the query 'Win32_LogicalDisk'

When i try to access the property of these class like Size ..
it give me THE USED SPAce in the cd

doubt:
however when i try to access the property of these class like
MaxMediaSize ..
it give me an error "NOT fOUND" y????????????

when i try to access the property of these class like FreeSpace..
it always gives me the value as 0 y????????????????

here is the part of the code
ManagementObject mo = new
ManagementObject("Win32_LogicalDisk.DeviceId='D:'");

mo.Get();

UInt64 ulngFreeSpace = (UInt64) mo["FreeSpace"];
UInt64 ulngmediaSpace = (UInt64) mo["MaxMediaSize"];

thanx

 

[Willy Denoyette [MVP]]

Please don't multipost, also you should post WMI related question to the WMI
specific NG microsoft.public.dotnet.framework.wmi

Willy.