Eugene Mayevski 'EldoS Corp がコメントしたように、WM_DEVICECHANGE イベントを使用する必要があります。
この質問で私があなたに与えた答えと組み合わせて、ここにサンプルコードがあります:
class Program : System.Windows.Forms.Form
{
static void Main(string[] args)
{
System.Windows.Forms.Application.Run(new Program());
}
const int WM_DEVICECHANGE = 0x0219;
const int NB_MOUNTED_VOLUMES = 26;
protected override void WndProc(ref System.Windows.Forms.Message m)
{
switch (m.Msg)
{
case WM_DEVICECHANGE:
ShowChange();
break;
}
base.WndProc(ref m);
}
private String[] m_oldMount;
public Program()
{
m_oldMount = new String[NB_MOUNTED_VOLUMES];
for (int i = 0; i < NB_MOUNTED_VOLUMES; i++)
m_oldMount[i] = String.Empty;
}
private void ShowChange()
{
String[] currentMount = GetMountList();
for (int i = 0; i < NB_MOUNTED_VOLUMES; i++)
{
if (currentMount[i] != m_oldMount[i])
{
if (String.IsNullOrEmpty(currentMount[i]))
{
Console.WriteLine("{0} : Dismount on {1}: => {2}",
DateTime.Now,
(char)('A' + i),
m_oldMount[i]);
}
else
{
Console.WriteLine("{0} : Mount on {1}: => {2}",
DateTime.Now,
(char)('A' + i),
currentMount[i]);
}
}
}
m_oldMount = currentMount;
}
private String[] GetMountList()
{
uint size = (uint)Marshal.SizeOf(typeof(MOUNT_LIST_STRUCT));
IntPtr buffer = Marshal.AllocHGlobal((int)size);
uint bytesReturned;
IntPtr _hdev = CreateFile("\\\\.\\TrueCrypt", FileAccess.ReadWrite, FileShare.ReadWrite, IntPtr.Zero, FileMode.Open, 0, IntPtr.Zero);
bool bResult = DeviceIoControl(_hdev, TC_IOCTL_GET_MOUNTED_VOLUMES, buffer, size, buffer, size, out bytesReturned, IntPtr.Zero);
MOUNT_LIST_STRUCT mount = new MOUNT_LIST_STRUCT();
Marshal.PtrToStructure(buffer, mount);
Marshal.FreeHGlobal(buffer);
return mount.wszVolume.Select(m => m.ToString()).ToArray();
}
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi, Pack = 1)]
class MOUNT_LIST_STRUCT
{
public readonly UInt32 ulMountedDrives; /* Bitfield of all mounted drive letters */
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 26)]
public readonly MOUNT_LIST_STRUCT_VOLUME_NAME[] wszVolume; /* Volume names of mounted volumes */
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 26)]
public readonly UInt64[] diskLength;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 26)]
public readonly int[] ea;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 26)]
public readonly int[] volumeType; /* Volume type (e.g. PROP_VOL_TYPE_OUTER, PROP_VOL_TYPE_OUTER_VOL_WRITE_PREVENTED, etc.) */
}
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi, Pack = 1)]
struct MOUNT_LIST_STRUCT_VOLUME_NAME
{
[MarshalAs(UnmanagedType.ByValArray, ArraySubType = UnmanagedType.I2, SizeConst = 260)]
public readonly char[] wszVolume; /* Volume names of mounted volumes */
public override string ToString()
{
return (new String(wszVolume)).TrimEnd('\0');
}
}
public static int CTL_CODE(int DeviceType, int Function, int Method, int Access)
{
return (((DeviceType) << 16) | ((Access) << 14) | ((Function) << 2)
| (Method));
}
private static readonly uint TC_IOCTL_GET_MOUNTED_VOLUMES = (uint)CTL_CODE(0x00000022, 0x800 + (6), 0, 0);
[DllImport("kernel32.dll", ExactSpelling = true, SetLastError = true, CharSet = CharSet.Auto)]
static extern bool DeviceIoControl(IntPtr hDevice, uint dwIoControlCode,
IntPtr lpInBuffer, uint nInBufferSize,
IntPtr lpOutBuffer, uint nOutBufferSize,
out uint lpBytesReturned, IntPtr lpOverlapped);
[DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]
public static extern IntPtr CreateFile(
[MarshalAs(UnmanagedType.LPTStr)] string filename,
[MarshalAs(UnmanagedType.U4)] FileAccess access,
[MarshalAs(UnmanagedType.U4)] FileShare share,
IntPtr securityAttributes, // optional SECURITY_ATTRIBUTES struct or IntPtr.Zero
[MarshalAs(UnmanagedType.U4)] FileMode creationDisposition,
[MarshalAs(UnmanagedType.U4)] FileAttributes flagsAndAttributes,
IntPtr templateFile);
}