lundi 23 mars 2015

How can i enumerate a list of all logical volumes on a disk? I want the name of the volume that is suitable for opening with CreateFile.

What have you tried?

I've used the FindFirstVolume/FindNextVolume API to enumerate a list of volumes. It returns a list of names such as:

But none of those volume names are valid volume names. That is, none of those names can be passed to CreateFile to open the volume:


0x00000003 (The system cannot find the path specified)

The question might be how do i convert the thing returned by FindFirstVolume into a volume name?

But the real question is how do i enumerate volumes in the first place?

Why not just use `\\.\C:`?

I wasn't asking how to hard-code a volume name; i was asking how to enumerate volume names.

Besides, not every volume has a drive letter, e.g.:

\\?\Volume{0b777018-3313-11e2-8ccd-806e6f6e6963}\ ==> the system reserved volume with no drive letter

\\?\Volume{4f81d34b-34f4-11e2-9f6e-c86000d0b92a}\ ==> a CD ROM that is mounted in a folder

I swear there is an API to enumerate volumes.

The problem with GetLogicalDriveStrings function is that it only returns logical drives:

and not volumes. In my case it misses two volumes:

that FindFirstVolume does correctly return.