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Visual Basic
WMI System Services Obtaining Processor Information using WMI |
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Posted: | Monday March 04, 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: |
Win32_BaseBoard: WMI Baseboard (Motherboard) Info Win32_BIOS: WMI System BIOS Information Win32_Processor: WMI Processor Information Win32_CacheMemory: WMI System Cache Memory Info Win32_TemperatureProbe: WMI Temperature Probe Info |
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. |
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The Win32_Processor WMI class returns processor status and information for both single and multiprocessor machines. This demo and illustration only show some of the available information from the class. For a complete listing see the table in the Comments section below. Note that some systems may not return information in all class properties. |
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Form Code | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
To a form add a command button (Command1) and a listview (Listview1). Set a reference in Projects / References to the Microsoft WMI Scripting Library, and add the following to the form: | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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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. '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' '/* Below used for listview column auto-resizing Private Const LVM_FIRST As Long = &H1000 Private Const LVM_SETCOLUMNWIDTH As Long = (LVM_FIRST + 30) Private Const LVSCW_AUTOSIZE As Long = -1 Private Const LVSCW_AUTOSIZE_USEHEADER As Long = -2 Private Declare Function SendMessage Lib "user32" _ Alias "SendMessageA" _ (ByVal hwnd As Long, _ ByVal wMsg As Long, _ ByVal wParam As Long, _ lParam As Any) As Long Private Sub Form_Load() With ListView1 .ListItems.Clear .ColumnHeaders.Clear .ColumnHeaders.Add , , "DevID" .ColumnHeaders.Add , , "Avail" .ColumnHeaders.Add , , "AddrWd" .ColumnHeaders.Add , , "Status" .ColumnHeaders.Add , , "SpdNow" .ColumnHeaders.Add , , "SpdMax" .ColumnHeaders.Add , , "L2Siz" .ColumnHeaders.Add , , "L2Spd" .ColumnHeaders.Add , , "VoltCap" .ColumnHeaders.Add , , "Name" .View = lvwReport .Sorted = False End With Command1.Caption = "Get Adapter Info" End Sub Private Sub Command1_Click() ListView1.ListItems.Clear Call wmiProcessorInfo Call lvAutosizeControl(ListView1) End Sub Private Sub lvAutosizeControl(lv As ListView) Dim col2adjust As Long '/* Size each column based on the maximum of '/* EITHER the columnheader text width, or, '/* if the items below it are wider, the '/* widest list item in the column For col2adjust = 0 To lv.ColumnHeaders.Count - 1 Call SendMessage(lv.hwnd, _ LVM_SETCOLUMNWIDTH, _ col2adjust, _ ByVal LVSCW_AUTOSIZE_USEHEADER) Next End Sub Private Sub wmiProcessorInfo() Dim cpuSet As SWbemObjectSet Dim cpu As SWbemObject Dim itmx As ListItem Set cpuSet = GetObject("winmgmts:{impersonationLevel=impersonate}"). _ InstancesOf("Win32_Processor") For Each cpu In cpuSet Set itmx = ListView1.ListItems.Add(, , cpu.DeviceID) itmx.SubItems(1) = cpu.Availability itmx.SubItems(2) = cpu.AddressWidth itmx.SubItems(3) = cpu.CpuStatus itmx.SubItems(4) = cpu.CurrentClockSpeed itmx.SubItems(5) = cpu.MaxClockSpeed itmx.SubItems(6) = cpu.L2CacheSize itmx.SubItems(7) = cpu.L2CacheSpeed itmx.SubItems(8) = cpu.VoltageCaps itmx.SubItems(9) = cpu.Name Next End Sub |
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Comments | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
All information returned in the Win32_Processor class (note that some
systems may not return information in all class properties):
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Copyright ©1996-2011 VBnet and Randy Birch. All Rights Reserved. |