Solved

Registry Scanning...

Posted on 2004-08-18
2
272 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
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
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

Announcing the Most Valuable Experts of 2016

MVEs are more concerned with the satisfaction of those they help than with the considerable points they can earn. They are the types of people you feel privileged to call colleagues. Join us in honoring this amazing group of Experts.

Question has a verified solution.

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

Suggested Solutions

The debugging module of the VB 6 IDE can be accessed by way of the Debug menu item. That menu item can normally be found in the IDE's main menu line as shown in this picture.   There is also a companion Debug Toolbar that looks like the followin…
When designing a form there are several BorderStyles to choose from, all of which can be classified as either 'Fixed' or 'Sizable' and I'd guess that 'Fixed Single' or one of the other fixed types is the most popular choice. I assume it's the most p…
As developers, we are not limited to the functions provided by the VBA language. In addition, we can call the functions that are part of the Windows operating system. These functions are part of the Windows API (Application Programming Interface). U…
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…

738 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