Solved

Registry Scanning...

Posted on 2004-08-18
2
269 Views
Last Modified: 2010-05-02
Hi Experts,

I would like to build a program that scans a "Branch" of the registry periodically (about every 2 seconds) for changes and if any change to the branch is found the new "key" that was added is displayed in a msgbox.

The "Branch" I would like to scan is:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects

Could anyone provide sample code to solve the problem?

Thanks,

Rob
0
Comment
Question by:robbrownuk
2 Comments
 
LVL 26

Expert Comment

by:EDDYKT
ID: 11833950
0
 
LVL 8

Accepted Solution

by:
mladenovicz earned 125 total points
ID: 11833987
You will need timer control with Interval 2000

Const ERROR_NO_MORE_ITEMS = 259&
Const HKEY_CURRENT_CONFIG = &H80000005
Const HKEY_LOCAL_MACHINE = &H80000002
Private Declare Function RegCloseKey Lib "advapi32.dll" (ByVal hKey As Long) As Long
Private Declare Function RegOpenKey Lib "advapi32.dll" Alias "RegOpenKeyA" (ByVal hKey As Long, ByVal lpSubKey As String, phkResult As Long) As Long
Private Declare Function RegEnumKeyEx Lib "advapi32.dll" Alias "RegEnumKeyExA" (ByVal hKey As Long, ByVal dwIndex As Long, ByVal lpName As String, lpcbName As Long, ByVal lpReserved As Long, ByVal lpClass As String, lpcbClass As Long, lpftLastWriteTime As Any) As Long
Private Declare Function RegEnumValue Lib "advapi32.dll" Alias "RegEnumValueA" (ByVal hKey As Long, ByVal dwIndex As Long, ByVal lpValueName As String, lpcbValueName As Long, ByVal lpReserved As Long, lpType As Long, lpData As Any, lpcbData As Long) As Long

Private Sub Timer1_Timer()

    Dim hKey As Long, Cnt As Long, sName As String, sData As String, Ret As Long, RetData As Long
    Const BUFFER_SIZE As Long = 255
    'Set the forms graphics mode to persistent
    Me.AutoRedraw = True
    Me.Print "RegEnumKeyEx"
    Ret = BUFFER_SIZE
    'Open the registry key
    If RegOpenKey(HKEY_LOCAL_MACHINE, "SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects", hKey) = 0 Then
        'Create a buffer
        sName = Space(BUFFER_SIZE)
        'Enumerate the keys
        While RegEnumKeyEx(hKey, Cnt, sName, Ret, ByVal 0&, vbNullString, ByVal 0&, ByVal 0&) <> ERROR_NO_MORE_ITEMS
            'Show the enumerated key
            Me.Print "  " + Left$(sName, Ret)
            'prepare for the next key
            Cnt = Cnt + 1
            sName = Space(BUFFER_SIZE)
            Ret = BUFFER_SIZE
        Wend
        'close the registry key
        RegCloseKey hKey
    Else
        Me.Print "  Error while calling RegOpenKey"
    End If
    Me.Print vbCrLf + "RegEnumValue"
    Cnt = 0
    'Open a registry key
    If RegOpenKey(HKEY_LOCAL_MACHINE, "SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects", hKey) = 0 Then
        'initialize
        sName = Space(BUFFER_SIZE)
        sData = Space(BUFFER_SIZE)
        Ret = BUFFER_SIZE
        RetData = BUFFER_SIZE
        'enumerate the values
        While RegEnumValue(hKey, Cnt, sName, Ret, 0, ByVal 0&, ByVal sData, RetData) <> ERROR_NO_MORE_ITEMS
            'show data
            If RetData > 0 Then Me.Print "  " + Left$(sName, Ret) + "=" + Left$(sData, RetData - 1)
            'prepare for next value
            Cnt = Cnt + 1
            sName = Space(BUFFER_SIZE)
            sData = Space(BUFFER_SIZE)
            Ret = BUFFER_SIZE
            RetData = BUFFER_SIZE
        Wend
        'Close the registry key
        RegCloseKey hKey
    Else
        Me.Print "  Error while calling RegOpenKey"
    End If
End Sub
0

Featured Post

Live: Real-Time Solutions, Start Here

Receive instant 1:1 support from technology experts, using our real-time conversation and whiteboard interface. Your first 5 minutes are always free.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

I’ve seen a number of people looking for examples of how to access web services from VB6.  I’ve been using a test harness I built in VB6 (using many resources I found online) that I use for small projects to work out how to communicate with web serv…
If you need to start windows update installation remotely or as a scheduled task you will find this very helpful.
Get people started with the utilization of class modules. Class modules can be a powerful tool in Microsoft Access. They allow you to create self-contained objects that encapsulate functionality. They can easily hide the complexity of a process from…
This lesson covers basic error handling code in Microsoft Excel using VBA. This is the first lesson in a 3-part series that uses code to loop through an Excel spreadsheet in VBA and then fix errors, taking advantage of error handling code. This l…

815 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

12 Experts available now in Live!

Get 1:1 Help Now