cd insert/removal 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"];

i wanto get the free space in the cd how do i get tht?????????????
thanx

 

[Johann Blake]

My guess is that, like Explorer, a CD does not return any space
available.

Best Regards
Johann Blake

 

[Willy Denoyette [MVP]]

CD and DVD's don't report freespace, they only report the space used (size
property).
The free space can only be guessed depending on the media type loaded (CD,
DVD etc...) but none of them have fixed maximum space properties, so it's
only a guess.

Willy.



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"];

i wanto get the free space in the cd how do i get tht?????????????
thanx