by Taklikar AH (3 Submissions)
Category: Windows System Services
Compatability: VB 6.0
Difficulty: Unknown Difficulty
Originally Published: Tue 25th December 2001
Date Added: Mon 8th February 2021
Rating: 
(1 Votes)
Change the keyboard layout on the fly without the pre-defined SHIFT+ALT keys.
API Declarations
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"
Public Const LANG_EN_US As String = "00000409" 'English
Public Const LANG_AR As String = "00000401" 'Arabic
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
'============
VBcoders
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
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