by Saghir (2 Submissions)
Category: Miscellaneous
Compatability: Visual Basic 3.0
Difficulty: Beginner
Date Added: Wed 3rd February 2021
Rating: 
(2 Votes)
simple code edits registry adds a value to the run key in windows registry.
it uses a module previously posted on PCS i have included it will the code but it displays the authers name with it.
VBcoders'///////start of form////////////
'you need three command buttons and a text1.text
'the module is not my code, it's really the easiest
'code for registery thanx Kevin.
Dim path As String
Private Sub Command1_Click()
'save path to your program in RUN
path = App.path & "\yourprogram.exe"
Call savestring(HKEY_LOCAL_MACHINE, "SOFTWARE\Microsoft\Windows\CurrentVersion\Run", "String", path)
End Sub
Private Sub Command2_Click()
'delete if user uninstals your app
Call DeleteValue(HKEY_LOCAL_MACHINE, "SOFTWARE\Microsoft\Windows\CurrentVersion\Run", "string")
End Sub
Private Sub Command3_Click()
'check value
Text1.Text = getstring(HKEY_LOCAL_MACHINE, "SOFTWARE\Microsoft\Windows\CurrentVersion\Run", "String")
End Sub
'///////////////end of form////
'
'
'PUT THIS IN A .BAS!!!
'
'PUT THIS IN A .BAS!!!
'
' Easiest Read/Write to Registry
' Kevin Mackey
' [email protected]
'
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 ERROR_SUCCESS = 0&
Declare Function RegCloseKey Lib "advapi32.dll" (ByVal Hkey As Long) As Long
Declare Function RegCreateKey Lib "advapi32.dll" Alias "RegCreateKeyA" (ByVal Hkey As Long, ByVal lpSubKey As String, phkResult As Long) As Long
Declare Function RegDeleteKey Lib "advapi32.dll" Alias "RegDeleteKeyA" (ByVal Hkey As Long, ByVal lpSubKey As String) As Long
Declare Function RegDeleteValue Lib "advapi32.dll" Alias "RegDeleteValueA" (ByVal Hkey As Long, ByVal lpValueName As String) As Long
Declare Function RegOpenKey Lib "advapi32.dll" Alias "RegOpenKeyA" (ByVal Hkey As Long, ByVal lpSubKey As String, phkResult As Long) As Long
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
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
Public Const REG_SZ = 1 ' Unicode nul terminated String
Public Const REG_DWORD = 4 ' 32-bit number
Public Sub savekey(Hkey As Long, strPath As String)
Dim keyhand&
r = RegCreateKey(Hkey, strPath, keyhand&)
r = RegCloseKey(keyhand&)
End Sub
Public Function getstring(Hkey As Long, strPath As String, strValue As String)
'EXAMPLE:
'
'text1.text = getstring(HKEY_CURRENT_USE
' R, "Software\VBW\Registry", "String")
'
Dim keyhand As Long
Dim datatype As Long
Dim lResult As Long
Dim strBuf As String
Dim lDataBufSize As Long
Dim intZeroPos As Integer
r = RegOpenKey(Hkey, strPath, keyhand)
lResult = RegQueryValueEx(keyhand, strValue, 0&, lValueType, ByVal 0&, lDataBufSize)
If lValueType = REG_SZ Then
strBuf = String(lDataBufSize, " ")
lResult = RegQueryValueEx(keyhand, strValue, 0&, 0&, ByVal strBuf, lDataBufSize)
If lResult = ERROR_SUCCESS Then
intZeroPos = InStr(strBuf, Chr$(0))
If intZeroPos > 0 Then
getstring = Left$(strBuf, intZeroPos - 1)
Else
getstring = strBuf
End If
End If
End If
End Function
Public Sub savestring(Hkey As Long, strPath As String, strValue As String, strdata As String)
'EXAMPLE:
'
'Call savestring(HKEY_CURRENT_USER, "Sof
' tware\VBW\Registry", "String", text1.tex
' t)
'
Dim keyhand As Long
Dim r As Long
r = RegCreateKey(Hkey, strPath, keyhand)
r = RegSetValueEx(keyhand, strValue, 0, REG_SZ, ByVal strdata, Len(strdata))
r = RegCloseKey(keyhand)
End Sub
Function getdword(ByVal Hkey As Long, ByVal strPath As String, ByVal strValueName As String) As Long
'EXAMPLE:
'
'text1.text = getdword(HKEY_CURRENT_USER
' , "Software\VBW\Registry", "Dword")
'
Dim lResult As Long
Dim lValueType As Long
Dim lBuf As Long
Dim lDataBufSize As Long
Dim r As Long
Dim keyhand As Long
r = RegOpenKey(Hkey, strPath, keyhand)
' Get length/data type
lDataBufSize = 4
lResult = RegQueryValueEx(keyhand, strValueName, 0&, lValueType, lBuf, lDataBufSize)
If lResult = ERROR_SUCCESS Then
If lValueType = REG_DWORD Then
getdword = lBuf
End If
'Else
'Call errlog("GetDWORD-" & strPath, Fals
' e)
End If
r = RegCloseKey(keyhand)
End Function
Function SaveDword(ByVal Hkey As Long, ByVal strPath As String, ByVal strValueName As String, ByVal lData As Long)
'EXAMPLE"
'
'Call SaveDword(HKEY_CURRENT_USER, "Soft
' ware\VBW\Registry", "Dword", text1.text)
'
'
Dim lResult As Long
Dim keyhand As Long
Dim r As Long
r = RegCreateKey(Hkey, strPath, keyhand)
lResult = RegSetValueEx(keyhand, strValueName, 0&, REG_DWORD, lData, 4)
'If lResult <> error_success Then
' Call errlog("SetDWORD", False)
r = RegCloseKey(keyhand)
End Function
Public Function DeleteKey(ByVal Hkey As Long, ByVal strKey As String)
'EXAMPLE:
'
'Call DeleteKey(HKEY_CURRENT_USER, "Soft
' ware\VBW")
'
Dim r As Long
r = RegDeleteKey(Hkey, strKey)
End Function
Public Function DeleteValue(ByVal Hkey As Long, ByVal strPath As String, ByVal strValue As String)
'EXAMPLE:
'
'Call DeleteValue(HKEY_CURRENT_USER, "So
' ftware\VBW\Registry", "Dword")
'
Dim keyhand As Long
r = RegOpenKey(Hkey, strPath, keyhand)
r = RegDeleteValue(keyhand, strValue)
r = RegCloseKey(keyhand)
End Function