Solved

Turn Caps Lock on and off

Posted on 1998-09-28
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Last Modified: 2012-06-27
Hello!

I wonder if it is possible to force the keys Caps lock,Num lock, or Scroll lock to be on or off at a certain time in my aplication.

How do I do?

mrc
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Question by:mrc121197
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Answers2000 earned 0 total points
ID: 1173916
BYTE abyKeys[256] ;

::GetKeyboardState( abyKeys ) ;

abyKeys[ VK_whatever ] |= 1 ; // set toggle key on
abyKeys[ VK_whatever ] &= ~1 ; // set toggle key off

::SetKeyboardState( abyKeys ) ;

Docs are in GetKeyboardState API

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Expert Comment

by:nietod
ID: 1173917
Note that this technique does not affect the indicator lights on the keyboard and will not affect the caps lock etc status of other programs.

You can use keybd_event() to send "fake" key strokes to affect the indicator lights and to affect other processes.
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by:Answers2000
ID: 1173918
Good point
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