Win32 API's missing/incomplete?

[Thomas Heller]

"Ixokai" <usenet at ixokai.net> writes:

> Hi folks.
> 
> I was trying to solve a mysterious problem in my program when I decided to
> try a more direct route to os.system("subst ..") in my application.. so I
> did some digging, and found win32file.DefineDosDrive.
> 
> Awesome. However, it has two problems... First, there is no QueryDosDrive
> that i can find, which is sorta important for my purposes..

Again, ctypes to the rescue:

  Python 2.2.2 (#37, Oct 14 2002, 17:02:34) [MSC 32 bit (Intel)] on win32
  Type "help", "copyright", "credits" or "license" for more information.
  >>> from ctypes import windll, c_string
  >>> kernel32 = windll.kernel32
  >>> bytes = kernel32.QueryDosDeviceA(None, buf, len(buf))
  >>> print bytes
  4782
  >>> buf.raw[:bytes].split("\000")
  ['NDIS', 'DISPLAY1', 'DISPLAY2', '{F9CF61E8-01A6-4C5D-835B-E7FCDEEB0D60}',
(and so on)

>  and Secondly, I
> can't see how to /undelete/ a drive totally, without knowing the path its
> set to.
> 
> See, if you pass a "null" value to the function its susposed to delete
> whatever the latest path is that was stuck onto that drive.. but None, "",
> [], et al, are not valid params to DefineDosDrive.
> 
> Anyone have any sugguested solutions? Thanks in advance.


Thomas