how to determine a removable drive is a floppy drive

Cecil Sheng

HI,

The GetDriveType API returns DRIVE_REMOVABLE when the drive is a floppy or
an usb disk(not usb harddisk).

How do i distinguish the two?

Pavel A.

"Cecil Sheng" wrote:
> HI,
>
> The GetDriveType API returns DRIVE_REMOVABLE when the drive is a floppy or
> an usb disk(not usb harddisk).
>
> How do i distinguish the two?

Floppy disks are usually <= 2.8 MB.
USB flash are usually > 10 MB.

--PA

Michael Xing

Use IOCTL_DISK_GET_DRIVE_GEOMETRY to get the media type.

-Michael

"Cecil Sheng" wrote:

> HI,
>
> The GetDriveType API returns DRIVE_REMOVABLE when the drive is a floppy or
> an usb disk(not usb harddisk).
>
> How do i distinguish the two?

Cecil Sheng

When there is no diskette in floppy drive, the DeviceIoControl fails,
GetLastError()==50.

"Michael Xing" wrote:

> Use IOCTL_DISK_GET_DRIVE_GEOMETRY to get the media type.
>
> -Michael
>
> "Cecil Sheng" wrote:
>
> > HI,
> >
> > The GetDriveType API returns DRIVE_REMOVABLE when the drive is a floppy or
> > an usb disk(not usb harddisk).
> >
> > How do i distinguish the two?

Pavel A.

"Cecil Sheng" wrote:
> When there is no diskette in floppy drive, the DeviceIoControl fails,
> GetLastError()==50.

Very good. A flash drive can't have "no media" condition, so you immediately
know that it is a floppy.

--PA

cristalink

QueryDosDevice(driveLetter) and check if the target path contains
\Device\Floppy
--
http://www.cristalink.com


"Cecil Sheng" <cecilsheng@foquest.com.tw.(donotspam).com> wrote in message
news:85B4D73E-C555-4BF9-9E94-EC74562ECBB8@microsoft.com...
> HI,
>
> The GetDriveType API returns DRIVE_REMOVABLE when the drive is a floppy or
> an usb disk(not usb harddisk).
>
> How do i distinguish the two?

Michael Xing

IOCTL_STORAGE_GET_MEDIA_TYPES should work for floppy. And
IOCTL_STORAGE_GET_MEDIA_TYPES or IOCTL_STORAGE_GET_MEDIA_TYPES_EX should work
for other.

-Michael

"Cecil Sheng" wrote:

> When there is no diskette in floppy drive, the DeviceIoControl fails,
> GetLastError()==50.
>
> "Michael Xing" wrote:
>
> > Use IOCTL_DISK_GET_DRIVE_GEOMETRY to get the media type.
> >
> > -Michael
> >
> > "Cecil Sheng" wrote:
> >
> > > HI,
> > >
> > > The GetDriveType API returns DRIVE_REMOVABLE when the drive is a floppy or
> > > an usb disk(not usb harddisk).
> > >
> > > How do i distinguish the two?