Method GetParentProcessId

src/Squirrel/NativeMethods.cs:13–32

()

    public static class NativeMethods
    {
        public static int GetParentProcessId()
        {
            var pbi = new PROCESS_BASIC_INFORMATION();

            //Get a handle to our own process
            IntPtr hProc = OpenProcess((ProcessAccess)0x001F0FFF, false, Process.GetCurrentProcess().Id);

            try {
                int sizeInfoReturned;
                int queryStatus = NtQueryInformationProcess(hProc, (PROCESSINFOCLASS)0, ref pbi, pbi.Size, out sizeInfoReturned);
            } finally {
                if (!hProc.Equals(IntPtr.Zero)) {
                    //Close handle and free allocated memory
                    CloseHandle(hProc);
                    hProc = IntPtr.Zero;
                }
            }

            return (int)pbi.InheritedFromUniqueProcessId;
        }


        [DllImport("version.dll", SetLastError = true)]