[python-win32] Calling random Windows function? [SEC=PERSONAL]

[Andrew MacIntyre]

Aahz wrote:
> I'm just getting into Windows programming for the first time, 
> and I need
> to list all open files.  Windows has a convenient function for that
> (NtQuerySystemInformation), but I can't figure out how I am 
> supposed to
> call it.  I bought of copy of the Win32 book and I can't find anything
> about accessing random API calls;
> ctypes.windll.kernel32.NtQuerySystemInformation gives an 
> AttributeError.
> 
> Where should I be looking to figure this out?

A search turned up the following page:
http://msdn.microsoft.com/en-us/library/ms724509%28VS.85%29.aspx

The remarks section indicates that the function is in ntdll.dll rather 
than kernel32.dll, which would explain the attribute error for the 
ctypes case.

When using ctypes, the MSDN reference pages are frequently the best 
available source of Windows API references, if you haven't got the 
platform SDK installed.

As I understand, while PyWin32 wraps a lot of API functions it doesn't 
wrap everything; if it's not wrapped, ctypes is your only option.

-------------------------> "These thoughts are mine alone!" <---------
Andrew MacIntyre           National Licensing and Allocations Branch
tel:   +61 2 6219 5356     Inputs to Industry Division
fax:   +61 2 6253 3277     Australian Communications & Media Authority
email: andrew.macintyre at acma.gov.au            http://www.acma.gov.au/ 

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