[VBnet WMI] Win32_DiskPartition: WMI Disk Partition Info

	Visual Basic WMI System Services Win32_DiskPartition: WMI Disk Partition Info

Posted:	Wednesday October 30, 2002
Updated:	Monday November 28, 2011

Applies to:	VB5, VB6
Developed with:	VB6, Windows XP
OS restrictions:	Windows NT, 2000, XP. See Prerequisites below.
Author:	VBnet - Randy Birch

Related:

Prerequisites

Windows Script Host is built into Microsoft Windows 98, 2000, ME and XP. If you are running Windows 95 or NT4, you can download Windows Script Host from the Microsoft Windows Script Technologies Web site at http://msdn.microsoft.com/scripting/. Some information is not returned on non-NT-based systems.

A reference set in Projects / References to the Microsoft WMI Scripting Library.

Win32_DiskPartition represents the capabilities and management capacity of a partitioned area of a physical disk on a Windows system. Example: Disk #0, Partition #1.

This demo and illustration shows only some of the available information from the class. For a complete listing see the Comments section below. Note that some systems may not return information in all class properties.

BAS Module Code

None.

Form Code

To a form add a command button (Command1) and a listbox (List1). Set a reference in Projects / References to the Microsoft WMI Scripting Library, and add the following to the form:

Option Explicit

''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
' Copyright ©1996-2011 VBnet/Randy Birch, All Rights Reserved.
' Some pages may also contain other copyrights by the author.
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
' Distribution: You can freely use this code in your own
'               applications, but you may not reproduce 
'               or publish this code on any web site,
'               online service, or distribute as source 
'               on any media without express permission.
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

Private Sub Command1_Click()

   Call wmiWin32DiskPartition
   
End Sub


Private Sub Form_Load()
   
   Command1.Caption = "wmiWin32DiskPartition"

End Sub


Private Sub wmiWin32DiskPartition()
      
   Dim objset  As SWbemObjectSet
   Dim obj     As SWbemObject

   Set objset = GetObject("winmgmts:{impersonationLevel=impersonate}"). _
                                      InstancesOf("Win32_DiskPartition")
   
   On Local Error Resume Next

   For Each obj In objset

      With List1
         .AddItem "DeviceID: " & obj.DeviceID
         .AddItem "DiskIndex: " & obj.DiskIndex
         .AddItem "Index: " & obj.Index
         .AddItem "BlockSize: " & obj.BlockSize
         .AddItem "Bootable: " & obj.Bootable
         .AddItem "BootPartition: " & obj.BootPartition
         .AddItem "NumberOfBlocks: " & FormatNumber(obj.NumberOfBlocks)
         .AddItem "PrimaryPartition: " & obj.PrimaryPartition
         .AddItem "Size: " & FormatNumber(obj.Size, 0)
         .AddItem ""
      End With
        
   Next
   
End Sub

Comments

All information returned in the Win32_DiskPartition class (note that some systems may not return information in all class properties):

uint16	Access;
uint16	Availability;
uint64	BlockSize;
boolean	Bootable;
boolean	BootPartition;
string.	Caption;
uint32	ConfigManagerErrorCode;
boolean	ConfigManagerUserConfig;
string.	CreationClassName;
string	Description;
string	DeviceID;
uint32	DiskIndex;
boolean	ErrorCleared;
string	ErrorDescription;
string	ErrorMethodology;
uint32	HiddenSectors;
uint32	Index;
datetime	InstallDate;
uint32	LastErrorCode;
string	Name;
uint64	NumberOfBlocks;
string	PNPDeviceID;
uint16	PowerManagementCapabilities[];
boolean	PowerManagementSupported;
boolean	PrimaryPartition;
string	Purpose;
boolean	RewritePartition;
uint64	Size;
uint64	StartingOffset;
string	Status;
uint16	StatusInfo;
string	SystemCreationClassName;
string	SystemName;
string	Type;

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