How to determine when a CD / DVD / USB is inserted or removed and get a drive letter?

Question

I want to determine when a disc (CD / DVD) or USB is inserted or removed.

I know that I need to work with the WM_DEVICECHANGE message, but my problem is getting the volume (letter) in Drive, I tried to get it using WMI Query and Win32_VolumeChangeEvent too, but I could not!

there is an example and it works great, how can I do this with Delphi?

Answer 1

Media Insert or Delete Detection (MSDN)
Detect insertion and / or removal of equipment (codeproject.com)

// EDIT:

... receive notification when you remove or insert a CD? (Torry Delphi Page)

and

http://www.google.com/search?q=Delphi+WMDeviceChange

Answer 2

To insert a CD, you want the CDEvents: http://www.torry.net/vcl/filedrv/cd/dtcdevents.zip

It works great. Send me an email ( [e-mail] ) if you want to use the sample code.