pinvoke.net: Edit: kernel32.OpenThread

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Summary: The OpenThread API

!!!!C# Signature:
 [DllImport("kernel32.dll", SetLastError = true)]
 static extern Microsoft.Win32.SafeHandles.SafeAccessTokenHandle OpenThread(
   ThreadAccess dwDesiredAccess,
   bool bInheritHandle,
   uint dwThreadId
   );

[DllImport("kernel32.dll", SetLastError = true)]
 static extern IntPtr OpenThread(ThreadAccess dwDesiredAccess, bool bInheritHandle,
   uint dwThreadId);
!!!!User-Defined Types:
  [Flags]
  public enum	ThreadAccess : int 
  {
    TERMINATE               = (0x0001)  ,
    SUSPEND_RESUME          = (0x0002)  ,
    GET_CONTEXT             = (0x0008)  ,
    SET_CONTEXT             = (0x0010)  ,
    SET_INFORMATION         = (0x0020)  ,
    QUERY_INFORMATION       = (0x0040)  ,
    SET_THREAD_TOKEN        = (0x0080)  ,
    IMPERSONATE             = (0x0100)  ,
    DIRECT_IMPERSONATION    = (0x0200)
  }

!!!!Notes:
None.

!!!!Tips & Tricks:
Use the SafeAccessTokenHandle version where possible, as it will ensure proper disposal of the handle.

If you use the IntPtr version, use a try/finally block to ensure you call Kernel32.[CloseHandle]

!!!!Sample Code:

private static void SuspendProcess(int pid)
  {
    var process = Process.GetProcessById(pid);
    if (process.ProcessName == string.Empty)
    {
      return;
    }
    foreach (ProcessThread thread in process.Threads)
    {
      using (var handle = 
               OpenThread(
                 ThreadAccess.SUSPEND_RESUME,
                 false,
                 (uint)thread.IdThreadAccess)
            ) // using block ensures finalizer closes handle
      {
            if (!handle.IsInvalid)
            {
              SuspendThread(pOpenThread);
            }
      }
    }
  }

!!!!Alternative Managed API:
Do you know one?  Please contribute it!

Documentation: OpenThread@msdn on MSDN