几个有用的Windows Mobile相关方法

1  取得设备ID。

 

#include <WINIOCTL.H>

extern "C" __declspec(dllimport)
BOOL KernelIoControl(
  DWORD dwIoControlCode, LPVOID lpInBuf, DWORD nInBufSize,
  LPVOID lpOutBuf, DWORD nOutBufSize, LPDWORD lpBytesReturned
);

#define IOCTL_HAL_GET_DEVICEID CTL_CODE(FILE_DEVICE_HAL, 21, METHOD_BUFFERED, FILE_ANY_ACCESS)

CString GetSerialNumberFromKernelIoControl()
{
 DWORD dwOutBytes;
 const int nBuffSize = 4096;
 byte arrOutBuff[nBuffSize];

 BOOL bRes = ::KernelIoControl(IOCTL_HAL_GET_DEVICEID,
                                     0, 0, arrOutBuff, nBuffSize, &dwOutBytes);

 if (bRes) {
  CString strDeviceInfo;
  for (unsigned int i = 0; i<dwOutBytes; i++) {
   CString strNextChar;
   strNextChar.Format(TEXT("%02X"), arrOutBuff[i]);
   strDeviceInfo += strNextChar;
  }
  CString strDeviceId =
   strDeviceInfo.Mid(40,2) +
   strDeviceInfo.Mid(45,9) +
   strDeviceInfo.Mid(70,6);

  return strDeviceId;
 } else {
  return _T("");
 }
}

 

说明：Windows Mobile 5.0已经添加了专门的API完成此任务，对于2003以下的设备可以用此方法。此方法是否能取道ID还取决与硬件制造商是否已经实现了改方法。因为smartphone具备2-Tie安全性，所以此方法如果没有授权证书可能会调用失败。

 

2  取得设备信息

TCHAR wszMachineName[128];
 SystemParametersInfo(SPI_GETOEMINFO, sizeof(wszMachineName),
             &wszMachineName, 0);

取得设备OEM信息。

TCHAR wszVersion[256];
 SystemParametersInfo(SPI_GETPLATFORMTYPE, sizeof(wszVersion),
             &wszVersion, 0);

取得平台信息。

 

3  创建GUID

CString CreateGUID()
{
 TCHAR wGuid[37];
 SYSTEMTIME systime;
 FILETIME filetime;
  // construct GUID
 GetSystemTime(&systime);
 SystemTimeToFileTime(&systime,&filetime);
 DWORD tick=GetTickCount();
 DWORD highWord=filetime.dwHighDateTime+0x146BF4;

  // convert GUID to a string
 wsprintf(wGuid,TEXT("%08.8x-%04.4x-%04.4x-%04.4x-%04.4x%04.4x%04.4x"),
  filetime.dwLowDateTime,
  LOWORD(highWord),
  HIWORD(highWord |0x10000000),
  LOWORD(rand()),
  HIWORD(tick),
  LOWORD(tick),
  LOWORD(rand()));
 return CString(wGuid);
}