[求助]vb6.0中能否通过API查询到注册表中某个键下子键的名称？(判断AutoCAD版本, 用

dyheng

[求助]vb6.0中能否通过API查询到注册表中某个键下子键的名称？(判断AutoCAD版本, 用于分发VBA)[br]我想通过查询注册表中Autodesk\AutoCAD键下子键的名称来判断AutoCAD的版本，同时再通过查询R16.1(本人的是2005)键下ACAD-301:804子键的Location项得到AutoCAD的安装路径，但是API中好象没有查询子键名称的函数，是我学得不够还是就没有这个函数？
主要是想通过修改C:\Program Files\AutoCAD 2005\Support目录下auto2005.lsp文件达到运行AutoCAD就能运行自己的VBA文件的目的？也就是主要解决VBA程序分发给别人，自己用vb6.0做一个相当于安装程序的小程序。
（以上注册表键名及文件路径只是本人机器上的，因版本和个人而异）

王咣生

'Description:
'
'This module exposes some very powerful methods that allow you to read and write to the Windows
'registry. All methods are effective and, when used correctly, safe.
'However; because altering the registry can cause serious problems you use these procedures at your own risk! 'Snippet Code: - Registry Module
'
' Option Explicit
'@~~~~~~~~ API Constants for Win32 Reg. ~~~~~~~~~~~@
Public Const REG_SZ = 1
Public Const REG_EXPAND_SZ = 2
Public Const REG_BINARY = 3
Public Const REG_DWORD = 4 Public Const HKEY_CLASSES_ROOT = &H80000000
Public Const HKEY_CURRENT_USER = &H80000001
Public Const HKEY_LOCAL_MACHINE = &H80000002
Public Const HKEY_USERS = &H80000003
Public Const HKEY_PERFORMANCE_DATA = &H80000004
Public Const HKEY_CURRENT_CONFIG = &H80000005
Public Const HKEY_DYN_DATA = &H80000006 Public Const REG_OPTION_NON_VOLATILE = 0
Public Const REG_CREATED_NEW_KEY = &H1
Public Const REG_OPENED_EXISTING_KEY = &H2 Public Const KEY_QUERY_VALUE = &H1
Public Const KEY_ENUMERATE_SUB_KEYS = &H8
Public Const KEY_NOTIFY = &H10
Public Const READ_CONTROL = &H20000
Public Const STANDARD_RIGHTS_ALL = &H1F0000
Public Const STANDARD_RIGHTS_EXECUTE = (READ_CONTROL)
Public Const STANDARD_RIGHTS_READ = (READ_CONTROL)
Public Const STANDARD_RIGHTS_REQUIRED = &HF0000
Public Const SYNCHRONIZE = &H100000
Public Const KEY_READ = ((STANDARD_RIGHTS_READ Or KEY_QUERY_VALUE Or KEY_ENUMERATE_SUB_KEYS Or KEY_NOTIFY) And (Not SYNCHRONIZE))
Public Const KEY_SET_VALUE = &H2
Public Const KEY_CREATE_SUB_KEY = &H4
Public Const KEY_CREATE_LINK = &H20
Public Const STANDARD_RIGHTS_WRITE = (READ_CONTROL)
Public Const KEY_WRITE = ((STANDARD_RIGHTS_WRITE Or KEY_SET_VALUE Or KEY_CREATE_SUB_KEY) And (Not SYNCHRONIZE))
Public Const KEY_ALL_ACCESS = ((STANDARD_RIGHTS_ALL Or KEY_QUERY_VALUE Or KEY_SET_VALUE Or KEY_CREATE_SUB_KEY Or KEY_ENUMERATE_SUB_KEYS Or KEY_NOTIFY Or KEY_CREATE_LINK) And (Not SYNCHRONIZE)) Public Const ERROR_SUCCESS = 0&
Public Const ERROR_ACCESS_DENIED = 5&
Public Const ERROR_NO_MORE_ITEMS = 259&
Public Const ERROR_BADKEY = 1010&
Public Const ERROR_CANTOPEN = 1011&
Public Const ERROR_CANTREAD = 1012&
Public Const ERROR_REGISTRY_CORRUPT = 1015& '@~~~~~~~~~~~~~~~~~ API Types ~~~~~~~~~~~~~~~~@ Type SECURITY_ATTRIBUTES
nLength As Long
lpSecurityDescriptor As Long
bInheritHandle As Boolean
End Type Public Type FILETIME
dwLowDateTime As Long
dwHighDateTime As Long
End Type '@~~~~~~~~~~~~~~~~~~ The Declares ~~~~~~~~~~~~~~~~~~~~~@ Public 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 Public Declare Function RegQueryValueEx Lib "advapi32.dll" Alias _
"RegQueryValueExA" (ByVal hKey As Long, ByVal lpValueName As _
String, ByVal lpReserved As Long, lpType As Long, lpData As Any, _
dwSize As Long) As Long Public Declare Function RegCreateKeyEx Lib "advapi32" _
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, lpSecurityAttributes As SECURITY_ATTRIBUTES, _
phkResult As Long, lpdwDisposition As Long) As Long Public Declare Function RegSetValueEx Lib "advapi32.dll" _
Alias "RegSetValueExA" (ByVal hKey As Long, _
ByVal lpValueName As String, ByVal dwReserved As Long, _
ByVal dwType As Long, lpValue As Any, ByVal dwSize As Long) As Long Public Declare Function RegDeleteKey Lib "advapi32.dll" _
Alias "RegDeleteKeyA" (ByVal hKey As Long, ByVal lpSubKey As String) 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 Declare Function RegConnectRegistry Lib "advapi32.dll" _
Alias "RegConnectRegistryA" (ByVal lpMachineName As String, ByVal _
hKey As Long, phkResult As Long) As Long Public Declare Function RegCreateKey Lib "advapi32.dll" Alias _
"RegCreateKeyA" (ByVal hKey As Long, ByVal lpSubKey As String, _
phkResult As Long) As Long Public Declare Function RegEnumKey Lib "advapi32.dll" Alias _
"RegEnumKeyA" (ByVal hKey As Long, ByVal dwIndex As Long, ByVal _
lpName As String, ByVal cbName As Long) As Long Public Declare Function RegEnumValue Lib "advapi32.dll" Alias _
"RegEnumValueA" (ByVal hKey As Long, ByVal dwIndex As Long, ByVal _
lpValueName As String, lpcbValueName As Long, lpReserved As Long, _
lpType As Long, lpData As Byte, lpcbData As Long) As Long Public 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 FILETIME) As Long Public Declare Function RegLoadKey Lib "advapi32.dll" Alias "RegLoadKeyA" _
(ByVal hKey As Long, ByVal lpSubKey As String, ByVal lpFile As String) As Long Public Declare Function RegNotifyChangeKeyValue Lib "advapi32.dll" _
(ByVal hKey As Long, ByVal bWatchSubtree As Long, ByVal dwNotifyFilter _
As Long, ByVal hEvent As Long, ByVal fAsynchronus As Long) As Long Public Declare Function RegOpenKey Lib "advapi32.dll" _
(ByVal hKey As Long, ByVal lpSubKey As String, phkResult As Long) As Long Public Declare Function OSRegQueryValue Lib "advapi32.dll" _
Alias "RegQueryValueA" (ByVal hKey As Long, ByVal lpSubKey As _
String, ByVal lpValue As String, lpcbValue As Long) As Long Public Declare Function RegReplaceKey Lib "advapi32.dll" Alias _
"RegReplaceKeyA" (ByVal hKey As Long, ByVal lpSubKey As String, _
ByVal lpNewFile As String, ByVal lpOldFile As String) As Long Public Declare Function RegRestoreKey Lib "advapi32.dll" Alias _
"RegRestoreKeyA" (ByVal hKey As Long, ByVal lpFile As String, _
ByVal dwFlags As Long) As Long Public Declare Function RegQueryInfoKey Lib "advapi32.dll" Alias _
"RegQueryInfoKeyA" (ByVal hKey As Long, ByVal lpClass As String, _
lpcbClass As Long, ByVal lpReserved As Long, lpcSubKeys As Long, _
lpcbMaxSubKeyLen As Long, lpcbMaxClassLen As Long, lpcValues As Long, _
lpcbMaxValueNameLen As Long, lpcbMaxValueLen As Long, lpcbSecurityDescriptor _
As Long, lpftLastWriteTime As FILETIME) As Long '@~~~~~~~~~~~~~~ DeleteRegKey ~~~~~~~~~~~~~~~~~~~~@
' BEWARE! WE CAN'T HELP YOU IF YOU DELETE THE WRONG KEY!
' Always back up your registry before you use any of these
' Methods. In fact, if you don't know EXACTLY what you are
' Doing, stay safe and use the built in VB Registry methods.
'@~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~@ Public Function DeleteRegKey(lngKey As Long, SubKey As String) As Long
Dim lngRet As Long
lngRet = RegDeleteKey(lngKey, SubKey)
DeleteRegKey = lngRet
End Function '@~~~~~~~~~~~~~~ DeleteRegValue ~~~~~~~~~~~~~~~~~~@
' Delete the value of a key, please use caution.
'@~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~@ Public Function DeleteRegValue(lngKey As Long, SubKey As String, ValueName As String) As Long
Dim lngRet As Long
Dim lngKeyRet As Long lngRet = RegOpenKeyEx(lngKey, SubKey, 0, KEY_WRITE, lngKeyRet)
If lngRet <> ERROR_SUCCESS Then Exit Function lngRet = RegDeleteValue(lngKeyRet, ValueName)
DeleteRegValue = lngRet
RegCloseKey lngKeyRet
End Function '@~~~~~~~~~~~~~~~~ WriteRegLong ~~~~~~~~~~~~~~~~~~@
' Write a long Data type to a key
'@~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~@ Public Function WriteRegLong(lngKey As Long, SubKey As String, _
DataName As String, datavalue As Long) As Long Dim SEC As SECURITY_ATTRIBUTES
Dim lngKeyRet As Long
Dim lngDis As Long
Dim lngRet As Long lngRet = RegCreateKeyEx(lngKey, SubKey, 0, "", REG_OPTION_NON_VOLATILE, _
KEY_ALL_ACCESS, SEC, lngKeyRet, lngDis) If (lngRet = ERROR_SUCCESS) Or (lngRet = REG_CREATED_NEW_KEY) Or _
(lngRet = REG_OPENED_EXISTING_KEY) Then
lngRet = RegSetValueEx(lngKeyRet, DataName, 0&, REG_DWORD, datavalue, 4)
RegCloseKey lngKeyRet
End If
WriteRegLong = lngRet
End Function
Public Function WriteStringValue(lngKey As Long, SubKey As String, _
DataName As String, datavalue As String) As Long Dim SEC As SECURITY_ATTRIBUTES
Dim lngKeyRet As Long
Dim lngDis As Long
Dim lngRet As Long lngRet = RegCreateKeyEx(lngKey, _
SubKey, 0, vbNullString, _
REG_OPTION_NON_VOLATILE, KEY_ALL_ACCESS, _
SEC, lngKeyRet, lngDis)
'Trust me on this next line...
If datavalue <= "" Then datavalue = ""
If (lngRet = ERROR_SUCCESS) Or (lngRet = REG_CREATED_NEW_KEY) Or _
(lngRet = REG_OPENED_EXISTING_KEY) Then
lngRet = RegSetValueEx(lngKeyRet, DataName, 0&, _
REG_SZ, ByVal datavalue, Len(datavalue))
RegCloseKey lngKeyRet
End If
WriteStringValue = lngRet
End Function '@~~~~~~~~~~~~~~~~ ReadRegVal ~~~~~~~~~~~~~~~~~~~~~~~@
' Read a value! see example AppInfo
'@~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~@
Public Function ReadRegVal(lngKey As Long, SubKey As String, _
DataName As String, DefaultData As Variant) As Variant
Dim lngKeyRet As Long
Dim lngData As Long
Dim strData As String
Dim Datatype As Long
Dim DataSize As Long
Dim lngRet As Long
ReadRegVal = DefaultData
lngRet = RegOpenKeyEx(lngKey, SubKey, 0, KEY_QUERY_VALUE, lngKeyRet)
If lngRet <> ERROR_SUCCESS Then Exit Function
'If you declare a lpData as a string (that's DataName in this function) you
'must pass it ByVal as shown here
lngRet = RegQueryValueEx(lngKeyRet, DataName, 0&, Datatype, ByVal 0, DataSize)
If lngRet <> ERROR_SUCCESS Then
RegCloseKey lngKeyRet
Exit Function
End If
Select Case Datatype
Case REG_SZ
strData = Space(DataSize + 1)
lngRet = RegQueryValueEx(lngKeyRet, DataName, 0&, Datatype, ByVal strData, DataSize)
If lngRet = ERROR_SUCCESS Then
ReadRegVal = CVar(StripNulls(RTrim$(strData)))
End If
Case REG_DWORD
lngRet = RegQueryValueEx(lngKeyRet, DataName, 0&, Datatype, lngData, 4)
If lngRet = ERROR_SUCCESS Then
ReadRegVal = CVar(lngData)
End If
End Select
RegCloseKey lngKeyRet
End Function '@~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~@
' Reads all of the subkeys under strKey. NOTE VB
' users, you can change this function to return
' a string array!
'@~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~@
Public Function GetSubKeys(strKey As String, SubKey As String, ByRef SubKeyCnt As Long) As String
Dim strValues() As String
Dim strTemp As String
Dim lngSub As Long
Dim intCnt As Integer
Dim lngRet As Long
Dim intKeyCnt As Integer
Dim FT As FILETIME lngRet = RegOpenKeyEx(strKey, SubKey, 0, KEY_ENUMERATE_SUB_KEYS, lngSub) If lngRet <> ERROR_SUCCESS Then
SubKeyCnt = 0
Exit Function
End If
lngRet = RegQueryInfoKey(lngSub, vbNullString, 0, 0, SubKeyCnt, _
65, 0, 0, 0, 0, 0, FT)
If (lngRet <> ERROR_SUCCESS) Or (SubKeyCnt <= 0) Then
SubKeyCnt = 0
End If
ReDim strValues(SubKeyCnt - 1)
For intCnt = 0 To SubKeyCnt - 1
strValues(intCnt) = String$(65, 0)
RegEnumKeyEx lngSub, intCnt, strValues(intCnt), 65, 0, vbNullString, 0, FT
strValues(intCnt) = StripNulls(strValues(intCnt))
Next intCnt
RegCloseKey lngSub
For intKeyCnt = LBound(strValues) To UBound(strValues)
strTemp = strTemp & strValues(intKeyCnt) & ","
Next intKeyCnt
GetSubKeys = strTemp
End Function
'@~~~~~~~~~~~~~~StripNulls~~~~~~~~~~~~~~~~~~~~@
' Many API functions have null terminated strings
' this handy function removes the null values
' From the MS KB
'@~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~@
Function StripNulls(ByVal s As String) As String
Dim i As Integer
i = InStr(s, Chr$(0))
If i > 0 Then
StripNulls = Left$(s, i - 1)
Else
StripNulls = s
End If
End Function
'@~~~~~~~~~~~~~~ParseString~~~~~~~~~~~~~~~~~~@
' Use is simple: provide the delimited string, the
' integer that represents the location in the string
' you want to return, and the character that delimits
' the string. Used in this module for VBA Users who
' Need to read the string elements returned by
' "GetSubKeys"
'@~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~@
Public Function ParseString(strIn As String, intLoc As Integer, strDelimiter As String) As String
Dim intPos As Integer
Dim intStrt As Integer
Dim intStop As Integer
Dim intCnt As Integer
intCnt = intLoc
Do While intCnt > 0
intStop = intPos
intStrt = InStr(intPos + 1, strIn, Left$(strDelimiter, 1))
If intStrt > 0 Then
intPos = intStrt
intCnt = intCnt - 1
Else
intPos = Len(strIn) + 1
Exit Do
End If
Loop
ParseString = Mid$(strIn, intStop + 1, intPos - intStop - 1)
End Function '例子 '@~~~~~~~~~~~~ Sample of ReadRegVal ~~~~~~~~~~~~@
Public Function WorkDirectory() As String
Dim strVal As String
strVal = ReadRegVal(HKEY_LOCAL_MACHINE, "SOFTWARE\DevCAD", "Location", strVal)
WorkDirectory = strVal
End Function

dyheng

谢谢了!大概看了下，还未来得及仔细研究，不过已经发现GetSubKeys这个函数应该比较符合我的要求，先谢谢了！

neteasy

到这里看看http://www.vbeach.net/bbs/forumdisplay.php?fid=11