Desktop Functions:

   Smart Device Functions:

Show Recent Changes
Subscribe (RSS)
Misc. Pages
Helpful Tools
Suggested Reading
Website TODO List
Support Forum
Download Visual Studio Add-In

Terms of Use
Privacy Policy
NtSetSystemInformation (ntdll)
Change Windows System parameters

C# Signature:

/// <summary>Change Windows System parameters</summary>
/// <param name="InfoClass"></param>
/// <param name="Info"></param>
/// <param name="Length">Allocated bytes for the Info block</param>
/// <returns>Opposite of boolean.  Zero means success, non-zero means fail and use GetLastError</returns>
static extern UInt32 NtSetSystemInformation(NtSystemInformation.SYSTEM_INFORMATION_CLASS InfoClass, IntPtr Info, UInt32 Length);

VB Signature:

Declare Function NtSetSystemInformation Lib "ntdll.dll" (TODO) As TODO

User-Defined Types:


Alternative Managed API:

Do you know one? Please contribute it!


This works in the same manner as NtQuerySystemInformation.

Tips & Tricks:

Please add some!

Sample Code:

/// <summary></summary>
/// <param name="InfoClass"></param>
/// <param name="Info"></param>
public static void SetSystemInformation(NtSystemInformation.SYSTEM_INFORMATION_CLASS InfoClass, IntPtr Info, UInt32 Length)
        result = NtSetSystemInformationKernel(InfoClass, Info, Length);
    if (result != 0)
        throw new Win32Exception();


Please edit this page!

Do you have...

  • helpful tips or sample code to share for using this API in managed code?
  • corrections to the existing content?
  • variations of the signature you want to share?
  • additional languages you want to include?

Select "Edit This Page" on the right hand toolbar and edit it! Or add new pages containing supporting types needed for this API (structures, delegates, and more).

Access directly from VS:
Terms of Use
Edit This Page
Find References
Show Printable Version