private static extern int DeviceIoControl(uint hDevice,
uint dwIoControlCode,
int lpInBuffer,
int nInBufferSize,
ref GETVERSIONOUTPARAMS lpOutBuffer,
int nOutBufferSize,
ref uint lpbytesReturned,
int lpOverlapped);
public static string Read(byte drive)
{
OperatingSystem os = Environment.OSVersion;
if (os.Platform != PlatformID.Win32NT)
{
throw new NotSupportedException("仅支持WindowsNT/2000/XP");
}
//我没有NT4，请哪位大大测试一下NT4下能不能用
//if (os.Version.Major < 5) throw new NotSupportedException("仅支持WindowsNT/2000/XP");
string driveName = "\\\\.\\PhysicalDrive" + drive.ToString();
uint device = CreateFile(driveName,
GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE,
0, OPEN_EXISTING, 0, 0);
if (device == INVALID_HANDLE_VALUE)
{
return("");
}
GETVERSIONOUTPARAMS verPara = new GETVERSIONOUTPARAMS();
uint bytRv = 0;
if (0 != DeviceIoControl(device, DFP_GET_VERSION,
0, 0, ref verPara, Marshal.SizeOf(verPara),
ref bytRv, 0))
{
if (verPara.bIDEDeviceMap > 0)
{
byte bIDCmd = (byte)(((verPara.bIDEDeviceMap >> drive & 0x10) != 0) ? IDE_ATAPI_IDENTIFY : IDE_ATA_IDENTIFY);
SENDCMDINPARAMS scip = new SENDCMDINPARAMS();
SENDCMDOUTPARAMS scop = new SENDCMDOUTPARAMS();
scip.cBufferSize = IDENTIFY_BUFFER_SIZE;
scip.irDriveRegs.bFeaturesReg = 0;
scip.irDriveRegs.bSectorCountReg = 1;
scip.irDriveRegs.bCylLowReg = 0;
scip.irDriveRegs.bCylHighReg = 0;
scip.irDriveRegs.bDriveHeadReg = (byte)(0xA0 | ((drive & 1) << 4));
scip.irDriveRegs.bCommandReg = bIDCmd;
scip.bDriveNumber = drive;
if (0 != DeviceIoControl(device, DFP_RECEIVE_DRIVE_DATA,
ref scip, Marshal.SizeOf(scip), ref scop,
Marshal.SizeOf(scop), ref bytRv, 0))
{
StringBuilder s = new StringBuilder();
for (int i = 20; i < 40; i += 2)
{
s.Append((char)(scop.bBuffer[i + 1]));
s.Append((char)scop.bBuffer[i]);
}
CloseHandle(device);
return(s.ToString().Trim());
}
}
}
CloseHandle(device);
return("");
}
