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Small script to enable the Num Lock key

Posted on 1998-02-12
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Last Modified: 2012-05-07
How to use a small QB/VB script to enable the Num Lock key?
(Preferer use QB command if you know.)

Thanks.
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Question by:st
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kamall earned 30 total points
ID: 1457005
The KeyState custom control that is shipped with VB can do this job. It can turn ON and OFF the NumLock, CapsLock, ScrollLock, and the INS keys.
I had some code for QB but I couldn't find it at this moment. I will try to search for it.
Regards
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LVL 7

Expert Comment

by:kamall
ID: 1457006
Here is some other code for manipulating the CapsLock, NumLock, etc. without using the KeyState control (in VB):

Functin GetCapslock() As Boolean
'     ' Return or set the Capslock toggle.
GetCapslock = CBool(GetKeyState(vbKeyCapital) And 1)
End Function

Fuction GetNumlock() As Boolean
'     ' Return or set the Numlock toggle.
GetNumlock = CBool(GetKeyState(vbKeyNumlock) And 1)
End Function


Function GetScrollLock() As Boolean

       '     ' Return or set the ScrollLock toggle.
       GetScrollLock = CBool(GetKeyState(vbKeyScrollLock) And 1)
End Function


Sub SetCapslock(Value As Boolean)

       '     ' Return or set the Capslock toggle.
       Call SetKeyState(vbKeyCapital, Value)
End Sub


Sub SetNumlock(Value As Boolean)

       '     ' Return or set the Numlock toggle.
       Call SetKeyState(vbKeyNumlock, Value)
End Sub

Set SetScrollLock(Value As Boolean)
'     ' Return or set the ScrollLock toggle.
Call SetKeyState(vbKeyScrollLock, Value)
End Sub


Private Sub SetKeyState(intKey As Integer, fTurnOn As Boolean)

       '     ' Retrieve the keyboard state, set the particular
       '     ' key in which you're interested, and then set
       '     ' the entire keyboard state back the way it
       '     ' was, with the one key altered.
       Dim abytBuffer(0 To 255) As Byte
       GetKeyboardState abytBuffer(0)
       abytBuffer(intKey) = CByte(Abs(fTurnOn))
       SetKeyboardState abytBuffer(0)
End Sub


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