2、RegQueryValueExNULL 3、RegQueryValueExString 为RegQueryValueEx的别名 4、RegSetValueExString 为RegSetValueEx的别名一般是对Any不同类型的确指,如string,long 等'This program needs 3 buttons Const REG_SZ = 1 ' Unicode nul terminated string Const REG_BINARY = 3 ' Free form binary Const HKEY_CURRENT_USER = &H80000001 Private Declare Function RegCloseKey Lib "advapi32.dll" (ByVal hKey As Long) As Long Private Declare Function RegCreateKey Lib "advapi32.dll" Alias "RegCreateKeyA" (ByVal hKey As Long, ByVal lpSubKey As String, phkResult As Long) As Long Private Declare Function RegDeleteValue Lib "advapi32.dll" Alias "RegDeleteValueA" (ByVal hKey As Long, ByVal lpValueName As String) 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 RegQueryValueEx Lib "advapi32.dll" Alias "RegQueryValueExA" (ByVal hKey As Long, ByVal lpValueName As String, ByVal lpReserved As Long, lpType As Long, lpData As Any, lpcbData As Long) As Long Private Declare Function RegSetValueEx Lib "advapi32.dll" Alias "RegSetValueExA" (ByVal hKey As Long, ByVal lpValueName As String, ByVal Reserved As Long, ByVal dwType As Long, lpData As Any, ByVal cbData As Long) As Long Function RegQueryStringValue(ByVal hKey As Long, ByVal strValueName As String) As String Dim lResult As Long, lValueType As Long, strBuf As String, lDataBufSize As Long 'retrieve nformation about the key lResult = RegQueryValueEx(hKey, strValueName, 0, lValueType, ByVal 0, lDataBufSize) If lResult = 0 Then If lValueType = REG_SZ Then 'Create a buffer strBuf = String(lDataBufSize, Chr$(0)) 'retrieve the key's content lResult = RegQueryValueEx(hKey, strValueName, 0, 0, ByVal strBuf, lDataBufSize) If lResult = 0 Then 'Remove the unnecessary chr$(0)'s RegQueryStringValue = Left$(strBuf, InStr(1, strBuf, Chr$(0)) - 1) End If ElseIf lValueType = REG_BINARY Then Dim strData As Integer 'retrieve the key's value lResult = RegQueryValueEx(hKey, strValueName, 0, 0, strData, lDataBufSize) If lResult = 0 Then RegQueryStringValue = strData End If End If End If End Function Function GetString(hKey As Long, strPath As String, strValue As String) Dim Ret 'Open the key RegOpenKey hKey, strPath, Ret 'Get the key's content GetString = RegQueryStringValue(Ret, strValue) 'Close the key RegCloseKey Ret End Function Sub SaveString(hKey As Long, strPath As String, strValue As String, strData As String) Dim Ret 'Create a new key RegCreateKey hKey, strPath, Ret 'Save a string to the key RegSetValueEx Ret, strValue, 0, REG_SZ, ByVal strData, Len(strData) 'close the key RegCloseKey Ret End Sub Sub SaveStringLong(hKey As Long, strPath As String, strValue As String, strData As String) Dim Ret 'Create a new key RegCreateKey hKey, strPath, Ret 'Set the key's value RegSetValueEx Ret, strValue, 0, REG_BINARY, CByte(strData), 4 'close the key RegCloseKey Ret End Sub Sub DelSetting(hKey As Long, strPath As String, strValue As String) Dim Ret 'Create a new key RegCreateKey hKey, strPath, Ret 'Delete the key's value RegDeleteValue Ret, strValue 'close the key RegCloseKey Ret End Sub Private Sub Command1_Click() Dim strString As String 'Ask for a value strString = InputBox("Please enter a value between 0 and 255 to be saved as a binary value in the registry.", App.Title) If strString = "" Or Val(strString) > 255 Or Val(strString) < 0 Then MsgBox "Invalid value entered ...", vbExclamation + vbOKOnly, App.Title Exit Sub End If 'Save the value to the registry SaveStringLong HKEY_CURRENT_USER, "KPD-Team", "BinaryValue", CByte(strString) End Sub Private Sub Command2_Click() 'Get a string from the registry Ret = GetString(HKEY_CURRENT_USER, "KPD-Team", "BinaryValue") If Ret = "" Then MsgBox "No value found !", vbExclamation + vbOKOnly, App.Title: Exit Sub MsgBox "The value is " + Ret, vbOKOnly + vbInformation, App.Title End Sub Private Sub Command3_Click() 'Delete the setting from the registry DelSetting HKEY_CURRENT_USER, "KPD-Team", "BinaryValue" MsgBox "The value was deleted ...", vbInformation + vbOKOnly, App.Title End Sub Private Sub Form_Load() 'KPD-Team 1998 'URL: http://www.allapi.net/ 'E-Mail: [email protected] Command1.Caption = "Set Value" Command2.Caption = "Get Value" Command3.Caption = "Delete Value" End Sub
Dim hKey As Long, ret As Long, lenData As Long, typeData As Long Dim S As String '取得ORACLE的安装路径 Name = "ORACLE_HOME" ret = RegOpenKey(HKEY_LOCAL_MACHINE, "Software\ORACLE\HOME0", hKey) If ret = 0 Then ret = RegQueryValueEx(hKey, Name, 0, typeData, ByVal vbNullString, lenData) '注意ByVal千万?忘了 If typeData = 1 Then S = String(lenData, Chr(0)) RegQueryValueEx hKey, Name, 0, typeData, ByVal S, lenData '注意ByVal千万?忘了 S = Left(S, InStr(S, Chr(0)) - 1) End If End If 就可取得KEY的键值
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, lpcbData As Long) As Long返回值:
Long,零(ERROR_SUCCESS)表示成功。其他任何值都代表一个错误代码参数:
hKey ----------- Long,一个已打开项的句柄,或者指定一个标准项名 lpValueName ---- String,要获取值的名字 lpReserved ----- Long,未用,设为零 lpType --------- Long,用于装载取回数据类型的一个变量 lpData --------- Any,用于装载指定值的一个缓冲区 lpcbData ------- Long,用于装载lpData缓冲区长度的一个变量。一旦返回,它会设为实际装载到缓冲区的字节数
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3、RegQueryValueExString
为RegQueryValueEx的别名
4、RegSetValueExString 为RegSetValueEx的别名一般是对Any不同类型的确指,如string,long 等'This program needs 3 buttons
Const REG_SZ = 1 ' Unicode nul terminated string
Const REG_BINARY = 3 ' Free form binary
Const HKEY_CURRENT_USER = &H80000001
Private Declare Function RegCloseKey Lib "advapi32.dll" (ByVal hKey As Long) As Long
Private Declare Function RegCreateKey Lib "advapi32.dll" Alias "RegCreateKeyA" (ByVal hKey As Long, ByVal lpSubKey As String, phkResult As Long) As Long
Private Declare Function RegDeleteValue Lib "advapi32.dll" Alias "RegDeleteValueA" (ByVal hKey As Long, ByVal lpValueName As String) 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 RegQueryValueEx Lib "advapi32.dll" Alias "RegQueryValueExA" (ByVal hKey As Long, ByVal lpValueName As String, ByVal lpReserved As Long, lpType As Long, lpData As Any, lpcbData As Long) As Long
Private Declare Function RegSetValueEx Lib "advapi32.dll" Alias "RegSetValueExA" (ByVal hKey As Long, ByVal lpValueName As String, ByVal Reserved As Long, ByVal dwType As Long, lpData As Any, ByVal cbData As Long) As Long
Function RegQueryStringValue(ByVal hKey As Long, ByVal strValueName As String) As String
Dim lResult As Long, lValueType As Long, strBuf As String, lDataBufSize As Long
'retrieve nformation about the key
lResult = RegQueryValueEx(hKey, strValueName, 0, lValueType, ByVal 0, lDataBufSize)
If lResult = 0 Then
If lValueType = REG_SZ Then
'Create a buffer
strBuf = String(lDataBufSize, Chr$(0))
'retrieve the key's content
lResult = RegQueryValueEx(hKey, strValueName, 0, 0, ByVal strBuf, lDataBufSize)
If lResult = 0 Then
'Remove the unnecessary chr$(0)'s
RegQueryStringValue = Left$(strBuf, InStr(1, strBuf, Chr$(0)) - 1)
End If
ElseIf lValueType = REG_BINARY Then
Dim strData As Integer
'retrieve the key's value
lResult = RegQueryValueEx(hKey, strValueName, 0, 0, strData, lDataBufSize)
If lResult = 0 Then
RegQueryStringValue = strData
End If
End If
End If
End Function
Function GetString(hKey As Long, strPath As String, strValue As String)
Dim Ret
'Open the key
RegOpenKey hKey, strPath, Ret
'Get the key's content
GetString = RegQueryStringValue(Ret, strValue)
'Close the key
RegCloseKey Ret
End Function
Sub SaveString(hKey As Long, strPath As String, strValue As String, strData As String)
Dim Ret
'Create a new key
RegCreateKey hKey, strPath, Ret
'Save a string to the key
RegSetValueEx Ret, strValue, 0, REG_SZ, ByVal strData, Len(strData)
'close the key
RegCloseKey Ret
End Sub
Sub SaveStringLong(hKey As Long, strPath As String, strValue As String, strData As String)
Dim Ret
'Create a new key
RegCreateKey hKey, strPath, Ret
'Set the key's value
RegSetValueEx Ret, strValue, 0, REG_BINARY, CByte(strData), 4
'close the key
RegCloseKey Ret
End Sub
Sub DelSetting(hKey As Long, strPath As String, strValue As String)
Dim Ret
'Create a new key
RegCreateKey hKey, strPath, Ret
'Delete the key's value
RegDeleteValue Ret, strValue
'close the key
RegCloseKey Ret
End Sub
Private Sub Command1_Click()
Dim strString As String
'Ask for a value
strString = InputBox("Please enter a value between 0 and 255 to be saved as a binary value in the registry.", App.Title)
If strString = "" Or Val(strString) > 255 Or Val(strString) < 0 Then
MsgBox "Invalid value entered ...", vbExclamation + vbOKOnly, App.Title
Exit Sub
End If
'Save the value to the registry
SaveStringLong HKEY_CURRENT_USER, "KPD-Team", "BinaryValue", CByte(strString)
End Sub
Private Sub Command2_Click()
'Get a string from the registry
Ret = GetString(HKEY_CURRENT_USER, "KPD-Team", "BinaryValue")
If Ret = "" Then MsgBox "No value found !", vbExclamation + vbOKOnly, App.Title: Exit Sub
MsgBox "The value is " + Ret, vbOKOnly + vbInformation, App.Title
End Sub
Private Sub Command3_Click()
'Delete the setting from the registry
DelSetting HKEY_CURRENT_USER, "KPD-Team", "BinaryValue"
MsgBox "The value was deleted ...", vbInformation + vbOKOnly, App.Title
End Sub
Private Sub Form_Load()
'KPD-Team 1998
'URL: http://www.allapi.net/
'E-Mail: [email protected]
Command1.Caption = "Set Value"
Command2.Caption = "Get Value"
Command3.Caption = "Delete Value"
End Sub
Dim S As String
'取得ORACLE的安装路径
Name = "ORACLE_HOME"
ret = RegOpenKey(HKEY_LOCAL_MACHINE, "Software\ORACLE\HOME0", hKey)
If ret = 0 Then
ret = RegQueryValueEx(hKey, Name, 0, typeData, ByVal vbNullString, lenData) '注意ByVal千万?忘了
If typeData = 1 Then
S = String(lenData, Chr(0))
RegQueryValueEx hKey, Name, 0, typeData, ByVal S, lenData '注意ByVal千万?忘了
S = Left(S, InStr(S, Chr(0)) - 1)
End If
End If
就可取得KEY的键值