获取硬盘信息的代码

#include

#include

#include

BOOL GetDriveGeometry(const char *pathofdisk,DISK_GEOMETRY *pdg)

{

  HANDLE hDevice;               // handle to the drive to be examined 

  BOOL bResult;                 // results flag

  DWORD junk;                   // discard results

  hDevice = CreateFile(pathofdisk,  // drive to open

                    0,                // no access to the drive

                    FILE_SHARE_READ | // share mode

                    FILE_SHARE_WRITE, 

                    NULL,             // default security attributes

                    OPEN_EXISTING,    // disposition

                    0,                // file attributes

                    NULL);            // do not copy file attributes

  if (hDevice == INVALID_HANDLE_VALUE) // cannot open the drive

  {

    return (FALSE);

  }

  bResult = DeviceIoControl(hDevice,  // device to be queried

      IOCTL_DISK_GET_DRIVE_GEOMETRY,  // operation to perform

                             NULL, 0, // no input buffer

                            pdg, sizeof(*pdg),     // output buffer

                            &junk,                 // # bytes returned

                            (LPOVERLAPPED) NULL);  // synchronous I/O

  CloseHandle(hDevice);

  return (bResult);

}

int main(int argc, char *argv[])

{

  DISK_GEOMETRY pdg;            // disk drive geometry structure

  BOOL bResult;                 // generic results flag

  ULONGLONG DiskSize;           // size of the drive, in bytes

  

  if(argc<=1)return 0;

  bResult = GetDriveGeometry (argv[1],&pdg);

  if(pdg.MediaType == RemovableMedia) printf("\nRemovableMedia\n");

  if(pdg.MediaType == FixedMedia) printf("FixedMedia\n");

  if (bResult)

  {

    printf("Cylinders = %I64d\n", pdg.Cylinders);

    printf("Trackslinder = %ld\n", (ULONG) pdg.TracksPerCylinder);

    printf("Sectors/track = %ld\n", (ULONG) pdg.SectorsPerTrack);

    printf("Bytesctor = %ld\n", (ULONG) pdg.BytesPerSector);

    DiskSize = pdg.Cylinders.QuadPart * (ULONG)pdg.TracksPerCylinder *

      (ULONG)pdg.SectorsPerTrack * (ULONG)pdg.BytesPerSector;

    printf("Disk size = %I64d (Bytes) = %I64d (Gb)\n", DiskSize,

           DiskSize / (1024 * 1024 * 1024));

  } 

  else 

  {

    printf ("GetDriveGeometry failed. Error %ld.\n", GetLastError ());

  }

  return ((int)bResult);

}