如何读取smartphone(如dopod)的机器码？
哪位大虾试验过，请指教！ 问题点数：20、回复次数：1Top
1 楼aawolf（羌狼）回复于 2005-03-10 17:41:33 得分 20
private static Int32 METHOD_BUFFERED = 0;
private static Int32 FILE_ANY_ACCESS = 0;
private static Int32 FILE_DEVICE_HAL = 0x00000101;
private const Int32 ERROR_NOT_SUPPORTED = 0x32;
private const Int32 ERROR_INSUFFICIENT_BUFFER = 0x7A;
private static Int32 IOCTL_HAL_GET_DEVICEID = ((FILE_DEVICE_HAL) << 16) | ((FILE_ANY_ACCESS) << 14) | ((21) << 2) | (METHOD_BUFFERED);
[DllImport("coredll.dll", SetLastError=true)]
private static extern bool KernelIoControl(Int32 dwIoControlCode, IntPtr lpInBuf, Int32 nInBufSize, byte[] lpOutBuf, Int32 nOutBufSize, ref Int32 lpBytesReturned);
private static string GetDeviceID()
{
// Initialize the output buffer to the size of a Win32 DEVICE_ID structure
byte[] outbuff = new byte[20];
Int32 dwOutBytes;
bool done = false;
Int32 nBuffSize = outbuff.Length;
// Set DEVICEID.dwSize to size of buffer. Some platforms look at
// this field rather than the nOutBufSize param of KernelIoControl
// when determining if the buffer is large enough.
//
BitConverter.GetBytes(nBuffSize).CopyTo(outbuff, 0);
dwOutBytes = 0;
// Loop until the device ID is retrieved or an error occurs
while (! done)
{
if (KernelIoControl(IOCTL_HAL_GET_DEVICEID, IntPtr.Zero, 0, outbuff, nBuffSize, ref dwOutBytes))
{
done = true;
}
else
{
int error = Marshal.GetLastWin32Error();
switch (error)
{
case ERROR_NOT_SUPPORTED:
throw new NotSupportedException("IOCTL_HAL_GET_DEVICEID is not supported on this device", new Win32Exception(error));
case ERROR_INSUFFICIENT_BUFFER:
// The buffer wasn't big enough for the data. The
// required size is in the first 4 bytes of the output
// buffer (DEVICE_ID.dwSize).
nBuffSize = BitConverter.ToInt32(outbuff, 0);
outbuff = new byte[nBuffSize];
// Set DEVICEID.dwSize to size of buffer. Some
// platforms look at this field rather than the
// nOutBufSize param of KernelIoControl when
// determining if the buffer is large enough.
//
BitConverter.GetBytes(nBuffSize).CopyTo(outbuff, 0);
break;
default:
throw new Win32Exception(error, "Unexpected error");
}
}
}
Int32 dwPresetIDOffset = BitConverter.ToInt32(outbuff, 0x4); // DEVICE_ID.dwPresetIDOffset
Int32 dwPresetIDSize = BitConverter.ToInt32(outbuff, 0x8); // DEVICE_ID.dwPresetSize
Int32 dwPlatformIDOffset = BitConverter.ToInt32(outbuff, 0xc); // DEVICE_ID.dwPlatformIDOffset
Int32 dwPlatformIDSize = BitConverter.ToInt32(outbuff, 0x10); // DEVICE_ID.dwPlatformIDBytes
StringBuilder sb = new StringBuilder();
for (int i = dwPresetIDOffset; i < dwPresetIDOffset + dwPresetIDSize; i++)
{
sb.Append(String.Format("{0:X2}", outbuff[i]));
}
sb.Append("-");
for (int i = dwPlatformIDOffset; i < dwPlatformIDOffset + dwPlatformIDSize; i ++ )
{
sb.Append( String.Format("{0:X2}", outbuff[i]));
}
return sb.ToString();
}
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