| Re: Drive detection on win [message #22088] |
Mon, 23 October 2000 22:38 |
R.Bauer
Messages: 1424
Registered: November 1998
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Senior Member |
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Bernard Puc wrote:
>
> Hello,
>
> Is there a way to get a list of all the disk drives available on a
> windows machine?
>
Yes,
look at get_drive_list()
regards
Reimar
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| Re: Drive detection on win [message #22095 is a reply to message #22088] |
Mon, 23 October 2000 00:00  |
Peter Mason
Messages: 145
Registered: June 1996
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Senior Member |
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Hello Bernard,
> Is there a way to get a list of all the disk drives available on a
> windows machine?
I don't think there's an IDL command just for this, but then again you
won't have to go out to C for it. There's a standard Win32 function
that'll almost give you what you need, and you can call it directly
with IDL's CALL_EXTERNAL().
The function's called GetLogicalDrives and it lives in kernel32.dll - a
core component of Win9x / NT that'll always be present. You can call
it from IDL like this:
drivemask=CALL_EXTERNAL('kernel32.dll','GetLogicalDrives')
What you'll get back is a 32-bit integer that has its bits set
according to what drives are present. e.g., If you only have an A:
and a C: drive then you'll get back the value 5. It also picks up on
network drives that have been mapped to a drive letter. If it fails
for some reason then it returns zero.
Given this, you could quite easily put together some IDL code to turn
the drive mask into a STRARR of drive names.
Cheers
Peter Mason
Sent via Deja.com http://www.deja.com/
Before you buy.
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