WMI C# How to check programatically that CD was inserted

[Maciej Brzeziñski]

I'm writing a simple CD-player and i would like my aplication to be
aware that cd was removed or inserted. I've managed to do sth similar
using WMI but it's not satifactory. I'm using ManagementObjectWatcher
witch a query for logical disks of type cdrom but it keeps scaning all
posible drives (also floppy drives) and i don't want that side effect.
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[Willy Denoyette [MVP]]

Scan once and store the CD drive letter in your config file or the
environment.

Willy.

"Maciej Brzeziñski" <do*******@op.pl> wrote in message
news:eV**************@tk2msftngp13.phx.gbl...

I'm writing a simple CD-player and i would like my aplication to be
aware that cd was removed or inserted. I've managed to do sth similar
using WMI but it's not satifactory. I'm using ManagementObjectWatcher
witch a query for logical disks of type cdrom but it keeps scaning all
posible drives (also floppy drives) and i don't want that side effect.
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[Maciej Brzeziñski]

I have all names of the drives stored, but i want to know if cd was
removed or inserted into cdrom drive.
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[Willy Denoyette [MVP]]

Ok, if you are running this on W2K, use Win32_CDromDrive as target and
select event notification when media is loaded.
Your WQLquery should look like this...
select * from __InstanceModificationEvent within 10 where TargetInstance ISA
'Win32_CDromDrive' and TargetInstance.MediaLoaded = true

Willy.
"Maciej Brzeziñski" <do*******@op.pl> wrote in message
news:%2****************@TK2MSFTNGP10.phx.gbl...

I have all names of the drives stored, but i want to know if cd was
removed or inserted into cdrom drive.
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[Maciej Brzeziñski]

Thx for your help. I'll try to do it in this way.

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