'This example was created by A.E.Veltstra

'This fucntion changes the locale and as a result, the keyboardlayout gets adjusted

'parameters for api's
Const KL_NAMELENGTH As Long =  9                       'length of the keyboardbuffer
Const KLF_ACTIVATE  As Long = &H1                     'activate the layout

'the language constants
Const LANG_NL_STD As String = "00000413"
Const LANG_EN_US As String = "00000409"
Const LANG_DU_STD As String = "00000407"
Const LANG_FR_STD As String = "0000040C"

'api's to adjust the keyboardlayout
Private Declare Function GetKeyboardLayoutName Lib "user32" Alias "GetKeyboardLayoutNameA" (ByVal pwszKLID As String) As Long
Private Declare Function LoadKeyboardLayout Lib "user32" Alias "LoadKeyboardLayoutA" (ByVal pwszKLID As String, ByVal flags As Long) As Long
Public Function SetKbLayout(strLocaleId As String) As Boolean
    'Changes the KeyboardLayout
    'Returns TRUE when the KeyboardLayout was adjusted properly, FALSE otherwise
    'If the KeyboardLayout isn't installed, this function will install it for you
    On Error Resume Next
    Dim strLocId As String 'used to retrieve current KeyboardLayout
    Dim strMsg As String   'used as buffer
    Dim lngErrNr As Long   'receives the API-error number

  'create a buffer
  strLocId = String(KL_NAMELENGTH,  0 )
  'retrieve the current KeyboardLayout
  GetKeyboardLayoutName strLocId
  'Check whether the current KeyboardLayout and the
  'new one are the same
  If strLocId = (strLocaleId & Chr( 0 )) Then
    'If they're the same, we return immediately
    SetKbLayout = True
  Else
    'create buffer
    strLocId = String(KL_NAMELENGTH,  0 )
    'load and activate the layout for the current thread
    strLocId = LoadKeyboardLayout((strLocaleId & Chr( 0 )), KLF_ACTIVATE)
    If IsNull(strLocId) Then  'returns NULL when it fails
      SetKbLayout = False
    Else 'check again
      'create buffer
      strLocId = String(KL_NAMELENGTH,  0 )
      'retrieve the current layout
      GetKeyboardLayoutName strLocId
      If strLocId = (strLocaleId & Chr( 0 )) Then
        SetKbLayout = True
      Else
        SetKbLayout = False
      End If
    End If
  End If
End Function
Private Sub Form_Load()
    'change the current keybour layout to 'English - US'
    SetKbLayout LANG_EN_US
End Sub