特定のドライブを無効にする方法

c＃windowsサービスを使用してcdromとusbマスストレージドライバを無効にする必要があります。私は投稿Disable the use of CD drive (VB.NET)があることに気づいたが、それはcdromトレイを排出し続ける。誰もこの方法以外の方法でCD ROMを無効にする方法を知っていますか？特定のドライブを無効にする方法

出典

2012-03-01 lankitha

を私は解決策に

#region EjectMedia 
     const uint GENERICREAD = 0x80000000; 
     const uint OPENEXISTING = 3; 
     const uint IOCTL_STORAGE_EJECT_MEDIA = 2967560; 
     const int INVALID_HANDLE = -1; 

     private static IntPtr fileHandle; 
     private static uint returnedBytes; 

     [DllImport("kernel32", SetLastError = true)] 
     static extern IntPtr CreateFile(string fileName, 
     uint desiredAccess, 
     uint shareMode, 
     IntPtr attributes, 
     uint creationDisposition, 
     uint flagsAndAttributes, 
     IntPtr templateFile); 
     [DllImport("kernel32", SetLastError = true)] 
     static extern int CloseHandle(IntPtr driveHandle); 
     [DllImport("kernel32", SetLastError = true)] 
     static extern bool DeviceIoControl(IntPtr driveHandle, 
     uint IoControlCode, 
     IntPtr lpInBuffer, 
     uint inBufferSize, 
     IntPtr lpOutBuffer, 
     uint outBufferSize, 
     ref uint lpBytesReturned, 
       IntPtr lpOverlapped); 
     #endregion 

private void loop(object sender, EventArgs e) 
{ 
DriveInfo[] allDrives = DriveInfo.GetDrives(); 
      foreach (DriveInfo d in allDrives) 
      { 
       if (d.IsReady) 
       { 
        if (d.DriveType == DriveType.Removable || d.DriveType == DriveType.Ram || d.DriveType == DriveType.Unknown) 
         Eject(@"\\.\" + d.Name.Substring(0, 1) + ":"); 
       } 
      } 
} 

public void Eject(string driveLetter) 
     { 
      try 
      { 
       fileHandle = CreateFile(driveLetter, GENERICREAD, 0, IntPtr.Zero, OPENEXISTING, 0, IntPtr.Zero); 
       if ((int)fileHandle != INVALID_HANDLE) 
        DeviceIoControl(fileHandle, IOCTL_STORAGE_EJECT_MEDIA, IntPtr.Zero, 0, IntPtr.Zero, 0, ref returnedBytes, IntPtr.Zero); 
      } 

      catch 
      { 
       EventLog.WriteEntry(Marshal.GetLastWin32Error().ToString()); 
      } 

      finally 
      { 
       CloseHandle(fileHandle); 
       fileHandle = IntPtr.Zero; 
      } 
     }

に資金を提供しまし

出典

2012-03-08 11:26:51 lankitha

Vista以上では、Group Policyの設定を使用して、USB、CD-ROMなどのリムーバブルストレージを無効にすることができます。そしてあなたはそれのためのサービスを必要としません。グループポリシーインフラストラクチャでこれを行うことができない場合は、グループポリシーが制御するレジストリキーを設定するオプションがあります。レジストリキーの場所はVista forum postに記載されています。

出典

2012-03-02 03:28:49

以下で定義するVolumeManagerを確認してください。これは、ボリュームをロックし、CD-ROMのイジェクト無効にするにはCD-ROMのイジェクト

public class VolumeManager 
{ 
    public string DriveLetter { private set; get; } 
    public IntPtr hFile { private set; get; } 

    public VolumeManager(string driveletter) 
    { 
     DriveLetter = driveletter; 
    } 

    public EjectState Eject() 
    { 
     if (!OpenHandle()) 
      return EjectState.Failed; 

     if (Lock() && Dismount()) 
     { 
      if (PreventRemoval(false) && AutoEject()) 
      { 
       CloseHandle(); 
       return EjectState.AutoEject; 
      } 
      else 
      { 
       CloseHandle(); 
       return EjectState.RemoveSafely; 
      } 
     } 
     else 
     { 
      CloseHandle(); 
      return EjectState.NoLock; 
     } 
    } 

    public bool OpenHandle() 
    { 
     string filename = "\\\\.\\" + DriveLetter + ":"; 

     hFile = Win32.CreateFile(filename, Win32.GENERIC_READ | Win32.GENERIC_WRITE, 
      Win32.FILE_SHARE_READ | Win32.FILE_SHARE_WRITE, IntPtr.Zero, Win32.OPEN_EXISTING, 0, IntPtr.Zero); 

     if (hFile.ToInt32() == Win32.INVALID_HANDLE) 
     { 
      return false; 
     } 
     return true; 
    } 

    public void CloseHandle() 
    { 
     Win32.CloseHandle(hFile); 
    } 

    public bool Lock() 
    { 
     uint bytesReturned = 0; 
     int retry = 0; 
     while (retry < 20) 
     { 
      if (Win32.DeviceIoControl(hFile, Win32.FSCTL_LOCK_VOLUME, IntPtr.Zero, 0, IntPtr.Zero, 0, 
       ref bytesReturned, IntPtr.Zero)) 
      { 
       return true; 
      } 
      System.Threading.Thread.Sleep(250); 
      retry++; 
     } 
     return false; 
    } 


    public bool Dismount() 
    { 
     uint bytesReturned = 0; 
     if (!Win32.DeviceIoControl(hFile, Win32.FSCTL_DISMOUNT_VOLUME, IntPtr.Zero, 0, IntPtr.Zero, 0, 
      ref bytesReturned, IntPtr.Zero)) 
     { 
      return false; 
     } 
     return true; 
    } 

    public bool PreventRemoval(bool prevent) 
    { 
     Win32.PREVENT_MEDIA_REMOVAL pmr = new Win32.PREVENT_MEDIA_REMOVAL(); 
     pmr.PreventMediaRemoval = prevent; 
     IntPtr ptr = Marshal.AllocHGlobal(Marshal.SizeOf(pmr)); 
     Marshal.StructureToPtr(pmr, ptr, true); 

     uint bytesReturned = 0; 
     if (!Win32.DeviceIoControl(hFile, Win32.IOCTL_STORAGE_MEDIA_REMOVAL, ptr, Marshal.SizeOf(pmr), IntPtr.Zero, 0, 
      ref bytesReturned, IntPtr.Zero)) 
     { 
      return false; 
     } 
     return true; 

    } 

    public bool AutoEject() 
    { 
     uint bytesReturned = 0; 
     if (!Win32.DeviceIoControl(hFile, Win32.IOCTL_STORAGE_EJECT_MEDIA, IntPtr.Zero, 0, IntPtr.Zero, 0, 
      ref bytesReturned, IntPtr.Zero)) 
     { 
      return false; 
     } 
     return true; 
    } 
} 

public enum EjectState 
{ 
    Failed, 
    NoVolume, 
    NoLock, 
    RemoveSafely, 
    AutoEject 
} 

public class Win32 
{ 
    public const uint FILE_DEVICE_FILE_SYSTEM = 0x00000009; 
    public const uint IOCTL_STORAGE_BASE = 0x0000002d; 
    public const uint FILE_ANY_ACCESS = 0; 
    public const uint FILE_READ_ACCESS = 1; 
    public const uint METHOD_BUFFERED = 0; 
    public const uint FSCTL_LOCK_VOLUME = ((FILE_DEVICE_FILE_SYSTEM << 16) | (FILE_ANY_ACCESS << 14) | (6 << 2) | (METHOD_BUFFERED)); 
    public const uint FSCTL_DISMOUNT_VOLUME = ((FILE_DEVICE_FILE_SYSTEM << 16) | (FILE_ANY_ACCESS << 14) | (8 << 2) | (METHOD_BUFFERED)); 
    public const uint IOCTL_STORAGE_MEDIA_REMOVAL = ((IOCTL_STORAGE_BASE << 16) | (FILE_READ_ACCESS << 14) | (0x0201 << 2) | (METHOD_BUFFERED)); 
    public const uint IOCTL_STORAGE_EJECT_MEDIA = ((IOCTL_STORAGE_BASE << 16) | (FILE_READ_ACCESS << 14) | (0x0202 << 2) | (METHOD_BUFFERED)); 

    [DllImport("kernel32.dll", SetLastError = true)] 
    public static extern bool DeviceIoControl(IntPtr hDevice, uint dwIoControlCode, IntPtr lpInBuffer, int nInBufferSize, 
     IntPtr lpOutBuffer, uint nOutBufferSize, ref uint lpBytesReturned, IntPtr lpOverlapped); 

    [DllImport("kernel32.dll", SetLastError = true)] 
    public static extern bool CloseHandle(IntPtr hObject); 

    public const uint GENERIC_READ = 0x80000000; 
    public const uint GENERIC_WRITE = 0x40000000; 
    public const uint FILE_SHARE_READ = 0x00000001; 
    public const uint FILE_SHARE_WRITE = 0x00000002; 
    public const uint OPEN_EXISTING = 3; 
    public const int INVALID_HANDLE = -1; 

    [DllImport("kernel32.dll", SetLastError = true)] 
    public static extern IntPtr CreateFile(string lpFileName, uint dwDesiredAccess, 
     uint dwShareMode, IntPtr lpSecurityAttributes, uint dwCreationDisposition, 
     uint dwFlagsAndAttributes, IntPtr hTemplateFile); 

    public struct PREVENT_MEDIA_REMOVAL 
    { 
     [MarshalAs(UnmanagedType.Bool)] 
     public bool PreventMediaRemoval; 
    } 
}

を無効にする機能があります。

string DriveLetter = "G"; // Or whatever letter you have assigned for your CD-ROM 
var VolumeManager = new VolumeManager(DriveLetter); 
if (VolumeManager.OpenHandle()) 
{ 
    if (!VolumeManager.PreventRemoval(true)) 
    { 
     // Failed to disable CD-ROM eject 
     VolumeManager.CloseHandle(); 
    } 
} 
else 
{ 
    // Failed to access volume 
}

出典

2012-03-06 08:01:42

特定のドライブを無効にする方法

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