45 lines
2.0 KiB
C#
45 lines
2.0 KiB
C#
namespace LibTSforge.SPP
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{
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using Microsoft.Win32.SafeHandles;
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using System;
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using System.Runtime.InteropServices;
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public class SPSys
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{
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[DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]
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private static extern IntPtr CreateFile(string lpFileName, uint dwDesiredAccess, uint dwShareMode, IntPtr lpSecurityAttributes, uint dwCreationDisposition, uint dwFlagsAndAttributes, IntPtr hTemplateFile);
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private static SafeFileHandle CreateFileSafe(string device)
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{
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return new SafeFileHandle(CreateFile(device, 0xC0000000, 0, IntPtr.Zero, 3, 0, IntPtr.Zero), true);
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}
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[return: MarshalAs(UnmanagedType.Bool)]
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[DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]
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private static extern bool DeviceIoControl([In] SafeFileHandle hDevice, [In] uint dwIoControlCode, [In] IntPtr lpInBuffer, [In] int nInBufferSize, [Out] IntPtr lpOutBuffer, [In] int nOutBufferSize, out int lpBytesReturned, [In] IntPtr lpOverlapped);
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public static bool IsSpSysRunning()
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{
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SafeFileHandle file = CreateFileSafe(@"\\.\SpDevice");
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IntPtr buffer = Marshal.AllocHGlobal(1);
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int bytesReturned;
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DeviceIoControl(file, 0x80006008, IntPtr.Zero, 0, buffer, 1, out bytesReturned, IntPtr.Zero);
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bool running = Marshal.ReadByte(buffer) != 0;
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Marshal.FreeHGlobal(buffer);
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file.Close();
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return running;
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}
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public static int ControlSpSys(bool start)
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{
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SafeFileHandle file = CreateFileSafe(@"\\.\SpDevice");
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IntPtr buffer = Marshal.AllocHGlobal(4);
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int bytesReturned;
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DeviceIoControl(file, start ? 0x8000a000 : 0x8000a004, IntPtr.Zero, 0, buffer, 4, out bytesReturned, IntPtr.Zero);
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int result = Marshal.ReadInt32(buffer);
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Marshal.FreeHGlobal(buffer);
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file.Close();
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return result;
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}
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}
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}
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