C# Signature:

[DllImport("ntdll.dll", SetLastError=true)]
static extern int NtQueryInformationProcess(IntPtr processHandle,
   int processInformationClass, IntPtr processInformation, uint processInformationLength,
   IntPtr returnLength);

[DllImport("NTDLL.DLL", SetLastError=true)]

static extern int NtQueryInformationProcess(IntPtr hProcess, PROCESSINFOCLASS pic, ref PROCESS_BASIC_INFORMATION pbi, int cb, out int pSize);

VB Signature:

Declare Function NtQueryInformationProcess Lib "ntdll.dll" ( _
   processHandle As IntPtr, processInformationClass As Integer, _
   processInformation As IntPtr, processInformationLength As Integer, _
   returnLength As IntPtr) As Integer

User-Defined Types:

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Notes:

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