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Работаем с РЕЕСТРОМ с помощью API на VB

 
 

Вот оно! То что нам надо! Теперь перейдем на нормальную работу с реестром. Ура! Открой VB(Standart EXE), создай там модуль и вставь туда этот код:

Public Const REG_SZ As Long = 1
Public Const REG_DWORD As Long = 4
Public Const HKEY_LOCAL_MACHINE = &H80000002
Public Const HKEY_CLASSES_ROOT = &H80000000
Public Const HKEY_CURRENT_USER = &H80000001
Public Const HKEY_USERS = &H80000003


Public Const ERROR_NONE = 0
Public Const ERROR_BADDB = 1
Public Const ERROR_BADKEY = 2
Public Const ERROR_CANTOPEN = 3
Public Const ERROR_CANTREAD = 4
Public Const ERROR_CANTWRITE = 5
Public Const ERROR_OUTOFMEMORY = 6
Public Const ERROR_INVALID_PARAMETER = 7
Public Const ERROR_ACCESS_DENIED = 8
Public Const ERROR_INVALID_PARAMETERS = 87
Public Const ERROR_NO_MORE_ITEMS = 259
Public Const KEY_ALL_ACCESS = &H3F
Public Const REG_OPTION_NON_VOLATILE = 0

Declare Function RegCloseKey Lib "advapi32.dll" (ByVal hKey As Long) As Long 
Declare Function RegCreateKeyEx Lib "advapi32.dll" Alias "RegCreateKeyExA" (ByVal hKey As Long, ByVal lpSubKey As String, ByVal Reserved As Long, ByVal lpClass As String, ByVal dwOptions As Long, ByVal samDesired As Long, ByVal lpSecurityAttributes As Long, phkResult As Long, lpdwDisposition As Long) As Long 
Declare Function RegOpenKeyEx Lib "advapi32.dll" Alias "RegOpenKeyExA" (ByVal hKey As Long, ByVal lpSubKey As String, ByVal ulOptions As Long, ByVal samDesired As Long, phkResult As Long) As Long 
Declare Function RegQueryValueExString Lib "advapi32.dll" Alias "RegQueryValueExA" (ByVal hKey As Long, ByVal lpValueName As String, ByVal lpReserved As Long, lpType As Long, ByVal lpData As String, lpcbData As Long) As Long 
Declare Function RegQueryValueExLong Lib "advapi32.dll" Alias "RegQueryValueExA" (ByVal hKey As Long, ByVal lpValueName As String, ByVal lpReserved As Long, lpType As Long, lpData As Long, lpcbData As Long) As Long 
Declare Function RegQueryValueExNULL Lib "advapi32.dll" Alias "RegQueryValueExA" (ByVal hKey As Long, ByVal lpValueName As String, ByVal lpReserved As Long, lpType As Long, ByVal lpData As Long, lpcbData As Long) As Long 
Declare Function RegSetValueExString Lib "advapi32.dll" Alias "RegSetValueExA" (ByVal hKey As Long, ByVal lpValueName As String, ByVal Reserved As Long, ByVal dwType As Long, ByVal lpValue As String, ByVal cbData As Long) As Long 
Declare Function RegSetValueExLong Lib "advapi32.dll" Alias "RegSetValueExA" (ByVal hKey As Long, ByVal lpValueName As String, ByVal Reserved As Long, ByVal dwType As Long, lpValue As Long, ByVal cbData As Long) As Long 
Declare Function RegDeleteKey& Lib "advapi32.dll" Alias "RegDeleteKeyA" (ByVal hKey As Long, ByVal lpSubKey As String) 
Declare Function RegDeleteValue& Lib "advapi32.dll" Alias "RegDeleteValueA" (ByVal hKey As Long, ByVal lpValueName As String) 'Создание нового ключа
Public Function CreateNewKey(lPredefinedKey As Long, sNewKeyName As String)
Dim hNewKey As Long
Dim lRetVal As Long
lRetVal = RegCreateKeyEx(lPredefinedKey, sNewKeyName, 0&, vbNullString, REG_OPTION_NON_VOLATILE, KEY_ALL_ACCESS, 0&, hNewKey, lRetVal)
RegCloseKey (hNewKey)
End Function

'Запись данных в ключ
Public Function SetKeyValue(lPredefinedKey As Long, sKeyName As String, sValueName As String, vValueSetting As Variant, lValueType As Long)
Dim lRetVal As Long
Dim hKey As Long


lRetVal = RegOpenKeyEx(lPredefinedKey, sKeyName, 0, KEY_ALL_ACCESS, hKey)
lRetVal = SetValueEx(hKey, sValueName, lValueType, vValueSetting)

RegCloseKey (hKey)
End Function

Public Function SetValueEx(ByVal hKey As Long, sValueName As String, lType As Long, vValue As Variant) As Long 

Dim lValue As Long
Dim sValue As String

Select Case lType
Case REG_SZ
sValue = vValue
SetValueEx = RegSetValueExString(hKey, sValueName, 0&, lType, sValue, Len(sValue))
Case REG_DWORD
lValue = vValue
SetValueEx = RegSetValueExLong(hKey, sValueName, 0&, lType, lValue, 4)
End Select

End Function

'Возвращает значения записанные в ключе(т.е. чтение)
Public Function QueryValue(lPredefinedKey As Long, sKeyName As String, sValueName As String)

Dim lRetVal As Long
Dim hKey As Long
Dim vValue As Variant
lRetVal = RegOpenKeyEx(lPredefinedKey, sKeyName, 0, KEY_ALL_ACCESS, hKey)
lRetVal = QueryValueEx(hKey, sValueName, vValue)
QueryValue = vValue
RegCloseKey (hKey)

End Function

Function QueryValueEx(ByVal lhKey As Long, ByVal szValueName As String, vValue As Variant) As Long

Dim cch As Long
Dim lrc As Long
Dim lType As Long
Dim lValue As Long
Dim sValue As String

On Error GoTo QueryValueExError

'Определение размера и типа считываемых данных
lrc = RegQueryValueExNULL(lhKey, szValueName, 0&, lType, 0&, cch)
If lrc <> ERROR_NONE Then MsgBox "Данных (ключа) не существует!", vbExclamation, Form1.Caption
Select Case lType
'Для символьных
Case REG_SZ:
sValue = String(cch, 0)
lrc = RegQueryValueExString(lhKey, szValueName, 0&, lType, sValue, cch)
If lrc = ERROR_NONE Then
vValue = Left$(sValue, cch)
Else
vValue = Empty
End If
'Для числовых
Case REG_DWORD:
lrc = RegQueryValueExLong(lhKey, szValueName, 0&, lType, lValue, cch)
If lrc = ERROR_NONE Then vValue = lValue
'Для остальных не поддержанных типов данных
Case Else
lrc = -1
End Select
QueryValueExExit:
QueryValueEx = lrc
Exit Function
QueryValueExError:
Resume QueryValueExExit
End Function

'Удаление значений ключа
Public Function DeleteValue(lPredefinedKey As Long, sKeyName As String, sValueName As String)
Dim lRetVal As Long
Dim hKey As Long
lRetVal = RegOpenKeyEx(lPredefinedKey, sKeyName, 0, KEY_ALL_ACCESS, hKey)
lRetVal = RegDeleteValue(hKey, sValueName)
RegCloseKey (hKey)
End Function

'Удаление ключа
Public Function DeleteKey(lPredefinedKey As Long, sKeyName As String)
Dim lRetVal As Long
lRetVal = RegDeleteKey(lPredefinedKey, sKeyName)
End Function

Все, модуль сделали, и теперь про него можешь забыть. Теперь переключичсь на форму. На нее кинь 4 кнопки(у первой Caption = "Создать", у 2ой = "Запись", у 3ей = "Чтение", у 4ой и 5ой = "Удаление") и текстовое поле. Код:

Private Sub Command1_Click()
'Создание ключей
CreateNewKey HKEY_LOCAL_MACHINE, "VB6"
'Можно создать и подключи
'CreateNewKey HKEY_LOCAL_MACHINE, "VB6RegistryKey"
End Sub

Private Sub Command2_Click()
'Запись
SetKeyValue HKEY_LOCAL_MACHINE, "VB6", "Proga", "Твои данные", REG_SZ
End Sub
Private Sub Command3_Click()
'Чтение
Dim Variable As String

Text1.Text = QueryValue(HKEY_LOCAL_MACHINE, "VB6", "Proga")
End Sub

Private Sub Command4_Click()
'Удаление данных из ключа
DeleteValue HKEY_LOCAL_MACHINE, "VB6", "Program"
End Sub

Private Sub Command5_Click()
'Удаление ключа
DeleteKey HKEY_LOCAL_MACHINE, "VB6"
End Sub

Вот в этом "маленьком" примере лежат самые основы реестра.
Исходник
Теперь сделаем программу которая будет записывать в святую святых РЕЕСТРА нашу программу(т.е. в подключ Run).


Есть вопросы? Спроси на нашем форуме!!
E@gle [01.06.2011 11:48]

Хей! Ты в исходнике API не задекларировал!

Aлександр [09.03.2012 17:56]

На семёрке не читает значение ключа, говорит нет такого ключа. Помогите если несложно sanyok212@gmail.com



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