HidLibrary.NativeMethods.CreateFile C# (CSharp) Method

        internal static extern IntPtr CreateFile(string lpFileName, uint dwDesiredAccess, int dwShareMode, ref SECURITY_ATTRIBUTES lpSecurityAttributes, int dwCreationDisposition, int dwFlagsAndAttributes, int hTemplateFile);

        private static IntPtr OpenDeviceIO(string devicePath, DeviceMode deviceMode, uint deviceAccess)
        {
            NativeMethods.SECURITY_ATTRIBUTES lpSecurityAttributes = default(NativeMethods.SECURITY_ATTRIBUTES);
            int dwFlagsAndAttributes = 0;

            if (deviceMode == DeviceMode.Overlapped)
            {
                dwFlagsAndAttributes = 1073741824;
            }
            lpSecurityAttributes.lpSecurityDescriptor = IntPtr.Zero;
            lpSecurityAttributes.bInheritHandle       = true;
            lpSecurityAttributes.nLength = Marshal.SizeOf((object)lpSecurityAttributes);
            return(NativeMethods.CreateFile(devicePath, deviceAccess, 3, ref lpSecurityAttributes, 3, dwFlagsAndAttributes, 0));
        }