Getting Drive Information In Excel :
Private Declare Function GetDriveType32 Lib "kernel32" _
Alias "GetDriveTypeA" (ByVal nDrive As String) As Long
Private Declare Function GetLogicalDriveStrings Lib "kernel32" _
Alias "GetLogicalDriveStringsA" (ByVal nBufferLength As Long, _
ByVal lpBuffer As String) As Long
Private Declare Function GetDiskFreeSpaceEx Lib "kernel32" Alias "GetDiskFreeSpaceExA" _
(ByVal lpRootPathName As String, lpFreeBytesAvailableToCaller As Currency, _
lpTotalNumberOfBytes As Currency, lpTotalNumberOfFreeBytes As Currency) As Long
Function DriveType(DriveLetter As String) As String
' Returns a string that describes the drive type
DLetter = Left(DriveLetter, 1) & ":"
DriveCode = GetDriveType32(DLetter)
Select Case DriveCode
Case 1: DriveType = "Local"
Case 2: DriveType = "Removable"
Case 3: DriveType = "Fixed"
Case 4: DriveType = "Remote"
Case 5: DriveType = "CD-ROM"
Case 6: DriveType = "RAM Disk"
Case Else: DriveType = "Unknown"
End Select
End Function
Function NumberofDrives() As Integer
' Returns the number of drives
Dim Buffer As String * 255
Dim BuffLen As Long
Dim DriveCount As Integer
BuffLen = GetLogicalDriveStrings(Len(Buffer), Buffer)
DriveCount = 0
' Search for a null -- which separates the drives
For i = 1 To BuffLen
If Asc(Mid(Buffer, i, 1)) = 0 Then _
DriveCount = DriveCount + 1
Next i
NumberofDrives = DriveCount
End Function
Function DriveName(index As Integer) As String
' Returns the drive letter using an index
' Returns an empty string if index > number of drives
Dim Buffer As String * 255
Dim BuffLen As Long
Dim TheDrive As String
Dim DriveCount As Integer
BuffLen = GetLogicalDriveStrings(Len(Buffer), Buffer)
' Search thru the string of drive names
TheDrive = ""
DriveCount = 0
For i = 1 To BuffLen
If Asc(Mid(Buffer, i, 1)) <> 0 Then _
TheDrive = TheDrive & Mid(Buffer, i, 1)
If Asc(Mid(Buffer, i, 1)) = 0 Then 'null separates drives
DriveCount = DriveCount + 1
If DriveCount = index Then
DriveName = UCase(Left(TheDrive, 1))
Exit Function
End If
TheDrive = ""
End If
Next i
End Function
Sub ShowDriveInfo()
' This sub writes information for all drives
' to a range of cells
' Demonstrates the use of the custom drive functions
Dim cuAvailable As Currency
Dim cuTotal As Currency
Dim cuFree As Currency
Dim i As Integer
Dim DLetter As String
Dim NumDrives As Integer
NumDrives = NumberofDrives()
' Write info for all drives to active cell location
Cells.ClearContents
If TypeName(Selection) <> "Range" Then
MsgBox "Select a cell"
Exit Sub
End If
' Insert headings
Application.ScreenUpdating = False
With ActiveCell
.Offset(0, 0).Value = "Drive"
.Offset(0, 1).Value = "Type"
.Offset(0, 2).Value = "Total Bytes"
.Offset(0, 3).Value = "Used Bytes"
.Offset(0, 4).Value = "Free Bytes"
' Insert data for each drive
For i = 1 To NumDrives
DLetter = DriveName(i) & ":\"
cuAvailable = 0
cuTotal = 0
cuFree = 0
Call GetDiskFreeSpaceEx(DLetter, cuAvailable, cuTotal, cuFree)
' Drive name
.Offset(i, 0).Value = DLetter
' Drive type
.Offset(i, 1) = DriveType(DLetter)
' Total space
.Offset(i, 2) = Format(cuTotal * 10000, "#,###")
' Used space
.Offset(i, 3) = Format((cuTotal - cuFree) * 10000, "#,###")
' Free space
.Offset(i, 4) = Format(cuFree * 10000, "#,###")
Next i
' Format the table
ActiveSheet.ListObjects.Add xlSrcRange, ActiveCell.CurrentRegion
With ActiveCell.ListObject
.TableStyle = "TableStyleLight8"
.ShowTableStyleRowStripes = False
.ShowTableStyleColumnStripes = True
End With
.CurrentRegion.Columns.AutoFit
End With 'ActiveCell
End Sub