注册表

[fengyetianshi]

请问怎样可以把注册表中的一个子键的默认值读出来呢?
这样读不出来:getstring(HKEY_CURRENT_USER,"Software\Microsoft\Windows\CurrentVersion","@")

[yenight]

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 Form_Load()
'KPD-Team 2001
'URL: http://www.allapi.net/
'E-Mail: [e-mail]
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, "Hardware", 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$(sName, Ret)
'prepare for the next key
Cnt = Cnt + 1
sName = Space(BUFFER_SIZE)
Ret = BUFFER_SIZE
Wend
'close the registry key
RegCloseKey hKey
Else
Me.Print " Error while calling RegOpenKey"
End If
Me.Print vbCrLf + "RegEnumValue"
Cnt = 0
'Open a registry key
If RegOpenKey(HKEY_LOCAL_MACHINE, "Software\Microsoft\Windows\CurrentVersion", hKey) = 0 Then
'initialize
sName = Space(BUFFER_SIZE)
sData = Space(BUFFER_SIZE)
Ret = BUFFER_SIZE
RetData = BUFFER_SIZE
'enumerate the values
While RegEnumValue(hKey, Cnt, sName, Ret, 0, ByVal 0&, ByVal sData, RetData) <> ERROR_NO_MORE_ITEMS
'show data
If RetData > 0 Then Me.Print " " + Left$(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

[shortppsy]

同上