【急急急】怎么由逻辑盘符获得物理设备符？？？

Question

怎么由逻辑盘符获得所在的物理设备符？
比如由逻辑盘符“c：”获得物理设备符“PhysicalDrive0”

Answer 1

我在FAQ中有提到过类似的问题的！详细的查看FAQ中的内容function GetVolumeInfo(DriverLetter: Char): TDiskExtent;
var
  hVolume: THandle;
  DiskExtents: PVolumeDiskExtents;
  dwOutBytes: Cardinal;
begin
  with Result do
    begin
      DiskNumber := 0;
      StartingOffset.QuadPart := 0;
      ExtentLength.QuadPart := 0;
    end;
  hVolume := CreateFile(PChar('\\.\'+DriverLetter+':'), GENERIC_READ or GENERIC_WRITE,
                         FILE_SHARE_READ or FILE_SHARE_WRITE, nil, OPEN_EXISTING, 0, 0);
  if hVolume < 1 then Exit;
  DiskExtents := AllocMem(Max_Path);
  if DeviceIoControl(hVolume,
                IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS,
                nil, 0,
                DiskExtents, Max_Path,
                dwOutBytes, nil) then
     begin
       if DiskExtents^.NumberOfDiskExtents > 0 then
          Result := DiskExtents^.Extents[0];
     end;
  FreeMem(DiskExtents);
  CloseHandle(hVolume);
end;http://lysoft.7u7.net

Answer 2

http://search.csdn.net/Expert/topic/1249/1249469.xml?temp=.3637659
中有

Answer 3

http://search.csdn.net/Expert/topic/1249/1249469.xml?temp=.3637659