Getting Peak Commit from NtQuerySystemInformation

Hi,

I was tasked with finding a way to query our workstations for their Peak 
Commit Charge. According to the sysinternals forum:

"The only way I'm aware of that one can get this detail is from the 
uMmPeakCommitLimit member of the SYSTEM_PERFORMANCE_INFORMATION 
structure one passes to NtQuerySystemInformation when calling it with 
the SystemPerformanceInformation type." (see 
http://forum.sysinternals.com/forum_posts.asp?TID=15540&PID=75852)

I started with this question on the PyWin32 mailing list, but it turns 
out that they don't expose the functionality inside 
NtQuerySystemInformation so that's why I came here. Unfortunately, I'm a 
complete newb when it comes to ctypes. While I did find that this worked 
"ctypes.windll.ntdll.NtQuerySystemInformation", I don't know how to go 
on and actually query the object. Can someone give me a clue?

I'm running Python 2.5 on Windows XP. Thanks!

- Mike

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