GetVolumeInformation

function GetVolumeInformation(

  lpRootPathName: LPCTSTR;

  lpVolumeNameBuffer: LPTSTR;

  nVolumeNameSize: DWORD;

  lpVolumeSerialNumber: LPDWORD;

  var lpMaximumComponentLength: DWORD;

  var lpFileSystemFlags: DWORD;

  lpFileSystemNameBuffer: LPTSTR;

  nFileSystemNameSize: DWORD

):BOOL;