GetPathSize
Very fast recursive function to calculate the size of a directory (folder). This code is simple and built for speed. This code does NOT use the FileSystemObject because it is NOT installed on all PCs, therefore you cannot write code using it (unless you include the scrrun.dll - Microsoft Scripting Runtime with your application). **Update - I added the search options for System, Hidden, and Read-Only files so the result will truely match the same number of bytes that is displayed in Windows Explorer properties.
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Broncode
Public Function GetPathSize(ByRef sPathName As String) As Double
Dim sFileName As String
Dim dSize As Double
Dim asFileName() As String
Dim i As Long
' Enumerate DirNames and FileNames
If StrComp(Right$(sPathName, 1), "\", vbBinaryCompare) <> 0 Then sPathName = sPathName & "\"
sFileName = Dir$(sPathName, vbDirectory + vbHidden + vbSystem + vbReadOnly)
Do While Len(sFileName) > 0
If StrComp(sFileName, ".", vbBinaryCompare) <> 0 And StrComp(sFileName, "..", vbBinaryCompare) <> 0 Then
ReDim Preserve asFileName(i)
asFileName(i) = sPathName & sFileName
i = i + 1
End If
sFileName = Dir
Loop
If i > 0 Then
For i = 0 To UBound(asFileName)
If (GetAttr(asFileName(i)) And vbDirectory) = vbDirectory Then
' Add dir size
dSize = dSize + GetPathSize(asFileName(i))
Else
' Add file size
dSize = dSize + FileLen(asFileName(i))
End If
Next
End If
GetPathSize = dSize
End Function
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