kernel32: Reimplement GetLogicalDrives using the mountmgr

[GOUJON Alexandre]

On 07/23/2012 09:15 PM, Alexandre Julliard wrote:
> GOUJON Alexandre <ale.goujon at gmail.com> writes:
>
>> On 07/23/2012 03:03 PM, Alexandre Julliard wrote:
>>> That's very inefficient. There are better way of enumerating drives,
>>> check for instance QueryDosDevice.
>> I'm not sure QueryDosDevice is more efficient :
>> + with NULL device name, it returns every MS-DOS device which is not
>> what we want
> It's pretty much what we want. Check how it does it.
>
I may be mis-using it but on my (virtualized) Win7, QueryDosDevice with 
a NULL argument returns 6651 chars.
I truncated the output to the first strings and here's the result :

Z:
Global
D:
ACPI#PNP0C0A#0#{72631e54-78a4-11d0-bcf7-00aa00b7b32a}
PhysicalDrive0
DISPLAY5
Root#MS_L2TPMINIPORT#0000#{cac88484-7515-4c03-82e6-71a87abac361}
VDRVROOT
STORAGE#Volume#{a76e80e3-477f-11e1-b83a-806e6f6e6963}#0000000006500000#{53f5630d-b6bf-11d0-94f2-00a0c91efb8b}
SW#{eeab7790-c514-11d1-b42b-00805fc1270e}#asyncmac#{cac88484-7515-4c03-82e6-71a87abac361}
Root#SYSTEM#0000#{97ebaacb-95bd-11d0-a3ea-00a0c9223196}
DISPLAY1
Root#MS_SSTPMINIPORT#0000#{cac88484-7515-4c03-82e6-71a87abac361}

And note that using NULL, the strings are concatenated.
So getting each string is not very easy.

But if you say, it's the way to go .. will do that.