如何在Win7中从C＃.Net中断开蓝牙设备

Question

我想从我的c＃.Net应用程序中断开蓝牙设备，该应用程序在Win 7 x64上运行。

我知道MS在.Net上提供很少的功能调节BT。

我搜了32feet.Net，发现了如何连接，发现，获取信息......但没有断开连接（我错过了什么？）。

然后，我在Msdn IOCTL_BTH_DISCONNECT_DEVICE上找到。问题是我无法理解如何调用它。 它似乎我应该使用平台调用DeviceIOControl，但我恐怕没有足够的.Net技能来自己建立这个。

这里是我的时刻，其中：

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Text; 
using System.Runtime.InteropServices; 
using Microsoft.Win32.SafeHandles; 
using System.IO; 

namespace BtDisco 
{ 
    class Program 
    { 
     const int IOCTL_BTH_DISCONNECT_DEVICE = 0x41000c; 

     [DllImport("Kernel32.dll", SetLastError = false, CharSet = CharSet.Auto)] 
     public static extern bool DeviceIoControl(
      Microsoft.Win32.SafeHandles.SafeFileHandle hDevice, 
      uint dwIoControlCode, 
      [MarshalAs(UnmanagedType.AsAny)] [In] object InBuffer, 
      uint nInBufferSize, 
      [MarshalAs(UnmanagedType.AsAny)] [Out] object OutBuffer, 
      uint nOutBufferSize, 
      ref uint pBytesReturned, 
      [In] ref System.Threading.NativeOverlapped Overlapped 
      ); 

     [DllImport("kernel32.dll", SetLastError = true, CharSet = CharSet.Auto)] 
     static extern SafeFileHandle CreateFile(
      string lpFileName, 
      [MarshalAs(UnmanagedType.U4)] FileAccess dwDesiredAccess, 
      [MarshalAs(UnmanagedType.U4)] FileShare dwShareMode, 
      IntPtr lpSecurityAttributes, 
      [MarshalAs(UnmanagedType.U4)] FileMode dwCreationDisposition, 
      [MarshalAs(UnmanagedType.U4)] FileAttributes dwFlagsAndAttributes, 
      IntPtr hTemplateFile); 


     static void Main(string[] args) 
     { 
      //http://msdn.microsoft.com/en-us/library/windows/desktop/aa363216(v=vs.85).aspx 
      //hDev = Use CreateFile 
      SafeFileHandle _hdev = CreateFileR(...); 

      DeviceIoControl(hDev, IOCTL_BTH_DISCONNECT_DEVICE, char[] btAddr, btAddr.Length(), result, result.Length(), ref getCnt, IntPtr.Zero); 
     } 
    } 
} 

可能有人好心地帮我完成这个？

Answer 1

最后，我有它自己的工作！

我在InTheHand.Net代码中搜索了一下，最终了解了如何制作它！

下面是一些工作的代码（你需要InTheHand.Net，如果你想使用它）：

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Globalization; 
using System.Text; 
using InTheHand.Net; 
using InTheHand.Net.Bluetooth; 
using System.Runtime.InteropServices; 

namespace BTDisco2 
{ 
    class Program 
    { 
     const int IOCTL_BTH_DISCONNECT_DEVICE = 0x41000c; 
     [DllImport("kernel32.dll", SetLastError = true, CharSet = CharSet.Auto)] 
     internal static extern bool DeviceIoControl(
     IntPtr hDevice, 
     uint dwIoControlCode, 
     ref long InBuffer, 
     int nInBufferSize, 
     IntPtr OutBuffer, 
     int nOutBufferSize, 
     out int pBytesReturned, 
     IntPtr lpOverlapped); 

     static void Main(string[] args) 
     { 
      var r = BluetoothRadio.PrimaryRadio; 
      var h = r.Handle; 
      long btAddr = BluetoothAddress.Parse("00:1b:3d:0d:ac:31").ToInt64(); 
      int bytesReturned = 0; 
      var success = DeviceIoControl(h, 
      IOCTL_BTH_DISCONNECT_DEVICE, 
      ref btAddr, 8, 
      IntPtr.Zero, 0, out bytesReturned, IntPtr.Zero); 

      if (!success) 
      { 
       int gle = Marshal.GetLastWin32Error(); 
       Console.WriteLine(string.Format(CultureInfo.InvariantCulture, "failure: {0} = 0x{0:X}.", gle)); 
      } 
      else 
      { 
       Console.WriteLine("Success !"); 
      } 
      while (!Console.KeyAvailable) System.Threading.Thread.Sleep(200); 
     } 
    } 
}