Windows ,获取硬盘物理序列号(VC++)

#include <windows.h>

BOOL GetHDID(PCHAR pIDBufer)

{ 
    HANDLE hDevice=NULL;
    hDevice=::CreateFileA("\\.\PhysicalDrive0",GENERIC_READ|GENERIC_WRITE,FILE_SHARE_READ,NULL,OPEN_EXISTING,NULL,NULL);
    if(!hDevice)

　　{

       hDevice=::CreateFileA("\\.\Scsi0",GENERIC_READ |GENERIC_WRITE,FILE_SHARE_READ,NULL,OPEN_EXISTING,NULL,NULL);

　　}

    if(!hDevice)

　　{

　　　 return FALSE;

　　}

    DWORD dwBytesReturned=0;
    GETVERSIONINPARAMS gVersionParsams;
    ZeroMemory(&gVersionParsams,sizeof(GETVERSIONINPARAMS));

    if(!DeviceIoControl(hDevice,SMART_GET_VERSION,NULL,NULL,&gVersionParsams,sizeof(GETVERSIONINPARAMS),&dwBytesReturned, NULL)
        || dwBytesReturned==0 || gVersionParsams.bIDEDeviceMap <= 0)
    {
        ::CloseHandle(hDevice);
        return FALSE;
    }
    
    SENDCMDINPARAMS scip;

　　ZeroMemory( &scip,sizeof(SENDCMDINPARAMS)); 
    scip.cBufferSize=IDENTIFY_BUFFER_SIZE;
    scip.irDriveRegs.bSectorCountReg=1;
    scip.irDriveRegs.bSectorNumberReg=1;
    scip.irDriveRegs.bDriveHeadReg=0xA0;
    scip.irDriveRegs.bCommandReg=0xEC;

    BYTE btBuffer[1024]={ 0 };

    if(!DeviceIoControl(hDevice,SMART_RCV_DRIVE_DATA,&scip,sizeof(SENDCMDINPARAMS),
        btBuffer,1024,&dwBytesReturned,NULL))
    {
        ::CloseHandle(hDevice);
        return FALSE;
    }
    
    int nPos=0x24;            //序列号的开始位置,具体请参考SENDCMDOUTPARAMS与IDSECTOR结构
    while(btBuffer[nPos]<128)
    {
        *pIDBufer=btBuffer[nPos++];
        pIDBufer++;
    }
    *pIDBufer=00;
    return TRUE;
}

int _tmain(int argc, _TCHAR* argv[])
{
   CHAR szHDID[256];
   if(GetHDID(szHDID))

   {

      printf("硬盘序列号:%s ",szHDID);

　　}  

   else

   {

　　  printf("取硬盘序列号失败");

   }

   getch();

   return 0;
}