************************************** Windows API/Global Declarations for :GetDiskFreeSpaceEx ************************************** Public Type ULong ' Unsigned Long Byte1 As Byte Byte2 As Byte Byte3 As Byte Byte4 As Byte End Type Public Type LargeInt ' Large Integer LoDWord As ULong HiDWord As ULong LoDWord2 As ULong HiDWord2 As ULong End Type Public Declare Function GetDiskFreeSpaceEx Lib "kernel32" Alias "GetDiskFreeSpaceExA" _ (ByVal lpRootPathName As String, FreeBytesAvailableToCaller As LargeInt, _ TotalNumberOfBytes As LargeInt, TotalNumberOfFreeBytes As LargeInt) As Long ************************************** Name: GetDiskFreeSpaceEx Description:This code shows how to use GetFreeDiskSpaceEx API. It works with the drives larger than 2GB as oppose to the old GetFreeDiskSpace API call. It will also work with Windows2000 per-user space quota, so the free disk space you get is actually what available to the user and not all the space available on the disk. By: Konstantin Vasserman (from psc cd) Inputs:Pass any valid path to the GetFreeSpace function. The path could be a local drive ("c:" or "c:\windows"), network drive ("x:" or "x:\MyFolder") or UNC path like "\\myserver\myshare". Returns:GetFreeSpace function returns total number of free bytes on the disk that are available to the user associated with the calling thread. Return value is a Double. Assumes:Under Windows 2000: if per-user quotas are in use, the value returned by GetFreeSpace function may be less than the total number of free bytes on the disk. This code can be modified to get total number of free bytes on the disk (without regard to the user quota) or total number of bytes on the disk. Side Effects:This code will not work on versions of Windows 95 prior to OSR2. ************************************** Function GetFreeSpace(strPath as String) As Double Dim nFreeBytesToCaller As LargeInt Dim nTotalBytes As LargeInt Dim nTotalFreeBytes As LargeInt strPath = Trim(strPath) If Right(strPath, 1) <> "\" Then strPath = strPath & "\" End If If GetDiskFreeSpaceEx(strPath, nFreeBytesToCaller, nTotalBytes, nTotalFreeBytes) <> 0 Then GetFreeSpace = CULong( _ nFreeBytesToCaller.HiDWord.Byte1, _ nFreeBytesToCaller.HiDWord.Byte2, _ nFreeBytesToCaller.HiDWord.Byte3, _ nFreeBytesToCaller.HiDWord.Byte4) * 2 ^ 32 + _ CULong(nFreeBytesToCaller.LoDWord.Byte1, _ nFreeBytesToCaller.LoDWord.Byte2, _ nFreeBytesToCaller.LoDWord.Byte3, _ nFreeBytesToCaller.LoDWord.Byte4) End If End Function Function CULong(Byte1 As Byte, Byte2 As Byte, Byte3 As Byte, Byte4 As Byte) As Double CULong = Byte4 * 2 ^ 24 + Byte3 * 2 ^ 16 + Byte2 * 2 ^ 8 + Byte1 End Function