Visual Basic WMI System Services
Win32_LogicalProgramGroupItem: WMI Start Menu Program Group Members
     
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_LogicalProgramGroupItem class represents an element contained by a Win32_ProgramGroup instance, that is not itself another Win32_ProgramGroup instance. In other words, this lists the files under the groups, not the groups (folders) themselves.

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 information may not be returned on all systems.

 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 wmiWin32LogicalProgramGroupItem
   
End Sub


Private Sub Form_Load()
   
   Command1.Caption = "Win32_LogicalProgramGroupItem"

End Sub


Private Sub wmiWin32LogicalProgramGroupItem()
      
   Dim objset  As SWbemObjectSet
   Dim obj     As SWbemObject

   Set objset = GetObject("winmgmts:{impersonationLevel=impersonate}"). _
                                     InstancesOf("Win32_LogicalProgramGroupItem")
   
   On Local Error Resume Next

   For Each obj In objset

      With List1
         .AddItem "Name: " & obj.Name
         .AddItem "InstallDate: " & ConvertDate(obj.InstallDate)
         .AddItem ""
      End With
        
   Next
      
End Sub


Private Function ConvertDate(dtb) As String

   Dim d As String
   Dim t As String
   Dim bias As Long
   
   If Not IsNull(dtb) Then
   
      bias = SplitDateTimeBias(CStr(dtb), d, t)
      ConvertDate = Format$(d, "dddd mmm d, yyyy") & " at " & _
                    Format$(t, "hh:mm:ss")
   
   Else
   
      ConvertDate = "(date returned null)"
      
   End If
            
End Function


Private Function SplitDateTimeBias(leasedate As String, _
                                   leasedatepart As String, _
                                   leasetimepart As String) As Long

  'takes a datetime returned
  'and splits out the date and time
  'components, returns them in the
  'leasedatepart and leasetimepart
  'passed variables, and returns the
  'bias to be applied to the resultant date.
   Dim pos     As Long
   Dim bias    As Long
  
   pos = InStr(leasedate, ".")

   If pos > 0 Then

      bias = StripTimeZoneBias(leasedate)
      leasedatepart = Left$(leasedate, 8)
      leasetimepart = Mid$(leasedate, 9, pos - Len(leasedatepart) - 1)
      leasedatepart = InsertInString(leasedatepart, "-", 5, "")
      leasedatepart = InsertInString(leasedatepart, "-", 8, "")
      leasetimepart = InsertInString(leasetimepart, ":", 3, "")
      leasetimepart = InsertInString(leasetimepart, ":", 6, "")
      
      SplitDateTimeBias = bias

   Else

   End If

End Function


Private Function StripTimeZoneBias(leasedate As String) As Long

   Dim pos As Long
   Dim tmp As String
   
   pos = InStr(leasedate, "-")
   
   If pos = 0 Then
      
      pos = InStr(leasedate, "+")
      
      If pos = 0 Then
         StripTimeZoneBias = 0
      Else
      
      End If
      
   Else
   
      tmp = Mid$(leasedate, pos, Len(leasedate))
      leasedate = Mid$(leasedate, 1, pos - 1)
      StripTimeZoneBias = CLng(tmp)
      
   End If
    
End Function


Private Function InsertInString(ByVal sOriginal As String, _
                                sReplace As String, _
                                nField As Long, _
                                sDelimeter As String) As String
    
   'c 1998 Mario Lavignasse
   'Abbott Scientific
   'Replaces or inserts a string into a (any char) delimeted string
   '
   'Syntax:
   'sOriginal:  string of interest, returned unchanged
   'sReplace:   replacement or insert chr(s)
   'nField:     1-based position for the insert/replace to begin
   'sDelimeter: string to insert/replace. If empty, sReplace is
   '            inserted, if present sDelimeter is replaced by sReplace.
   '
   'Examples:
   'Inserting:
   ' x = InsertInString("Hello World", "Hello ", 7, "")
   '  (x="Hello Hello World")
   '
   'Replacing:
   ' x = InsertInString("Hello World", "Hello ", 7, "World")
   '   (x="Hello Hello")
         
   Dim lnCount As Long
   Dim lnStart As Long
   Dim lnLast As Long
    
   Do While InStr(lnStart + 1, sOriginal, sDelimeter) > 0
    
      lnStart = InStr(lnStart + 1, sOriginal, sDelimeter)
      lnCount = lnCount + 1
      
      If lnCount >= nField Then
         Exit Do
      End If
      
      lnLast = lnStart
        
   Loop
    
   
   Select Case lnCount
   
      Case 1
         InsertInString = sReplace & Mid$(sOriginal, lnStart)
      
      Case Is >= nField
         InsertInString = Mid$(sOriginal, 1, lnLast) & _
                               sReplace & Mid$(sOriginal, lnStart)
      Case Else
         InsertInString = sOriginal & _
                          String$((nField - 1) - lnCount, sDelimeter) & _
                          sReplace
   End Select
    
End Function
 Comments
All information returned in the Win32_LogicalProgramGroupItem class (note that some systems may not return information in all class properties):
   
string Caption;
string Description;
datetime InstallDate;
string Name;
string Status;

 
 

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