Tipp 6.3 - Registry-Schlüssel-Wert entfernen

Wie kann ich einen Registry-Schlüssel-Wert entfernen?

Mit dieser Funktion können Sie einen Registry-Schlüssel-Wert entfernen. Kopieren Sie einfach nachfolgenden Quellcode in die Zwischenablage und fügen Sie anschließend den Inhalt der Zwischenablage in ein neues Modul ein. Die Aufrufparameter finden Sie im Quellcode beschrieben.

Api-AufrufeVerwendete Win32-Api-Aufrufe und Typen: RegOpenKey, RegDeleteValue, RegCloseKey - REG_KEYS

Beispiel:

Option Explicit
 
Public Enum REG_KEYS
  HKEY_CLASSES_ROOT = &H80000000
  HKEY_CURRENT_USER = &H80000001
  HKEY_LOCAL_MACHINE = &H80000002
  HKEY_USERS = &H80000003
  HKEY_PERFORMANCE_DATA = &H80000004
  HKEY_CURRENT_CONFIG = &H80000005
  HKEY_DYN_DATA = &H80000006
End Enum
 
Public Const ERROR_SUCCESS As Long = 0&
 
Public Declare Function RegOpenKey _
    Lib "advapi32.dll" Alias _
    "RegOpenKeyA" _
    (ByVal hKey As Long, _
    ByVal lpSubKey As String, _
    phkResult As Long) As Long
Public Declare Function RegDeleteValue _
    Lib "advapi32.dll" Alias _
    "RegDeleteValueA" _
    (ByVal hKey As Long, _
    ByVal lpValueName As String) As Long
Public Declare Function RegCloseKey _
    Lib "advapi32.dll" _
    (ByVal hKey As Long) As Long
 
Public Function DeleteValue(ByVal lKey As REG_KEYS, _
                            ByVal sPath As String, _
                            ByVal sValue As String) _
                            As Boolean
  '// -----------------------------------------------------
  '// Methode:   | Entfernt einen Registry-Schlüsselwert
  '// -----------------------------------------------------
  '// Parameter: | lKey - Übergeordneter Schlüssel
  '//            | sPath - Pfad des Schlüssels
  '//            | sValue - Name des Wertes
  '// -----------------------------------------------------
  '// Rückgabe:  | True bei Erfolg
  '// -----------------------------------------------------
  '// Autor:     | Stefan Kulpa
  '//            | EDV Innovation & Consulting - Dormagen
  '// -----------------------------------------------------
  '// Beispiel:  |?DeleteValue(HKEY_LOCAL_MACHINE, _
  '//            |          "SOFTWARE" & _
  '//            |           App.CompanyName & "\" & _
  '//            |           App.EXEName, "Caption")
  '// -----------------------------------------------------
  Dim lCurKey     As Long
  Dim lRegResult  As Long
 
  lRegResult = RegOpenKey(lKey, sPath, lCurKey)
  lRegResult = RegDeleteValue(lCurKey, sValue)
  DeleteValue = (lRegResult = ERROR_SUCCESS)
  lRegResult = RegCloseKey(lCurKey)
 
End Function


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