GetVolumeInformationA

function GetVolumeInformationA(

  lpRootPathName: LPCSTR;

  lpVolumeNameBuffer: LPSTR;

  nVolumeNameSize: DWORD;

  lpVolumeSerialNumber: LPDWORD;

  var lpMaximumComponentLength: DWORD;

  var lpFileSystemFlags: DWORD;

  lpFileSystemNameBuffer: LPSTR;

  nFileSystemNameSize: DWORD

):BOOL;