Read NUMLOCK / CAPSLOCK from keyboard controller

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b32

You mean, checking their status ? The GetKeyState() function in user32.dll should be able to do that:

;------------------------
;.lib "user32.dll" 
;
;api_GetKeyState%(key%):"GetKeyState"
;------------------------

Const VK_CAPITAL = $14
Const VK_INSERT = $2D
Const VK_NUMLOCK = $90
Const VK_SCROLL = $91

Repeat
	
	Cls
	Text 0,  0, "CAPS:" + ((api_GetKeyState(VK_CAPITAL) And $FFFF) <> 0)
	Text 0, 20, "INS: " + ((api_GetKeyState(VK_INSERT) And $FFFF) <> 0)
	Text 0, 40, "NUM: " + ((api_GetKeyState(VK_NUMLOCK) And $FFFF) <> 0)
	Text 0, 60, "SCRL:" + ((api_GetKeyState(VK_SCROLL) And $FFFF) <> 0)
	Flip
	
Until KeyHit(1)

End

For changing them, I thing you could try using the Keybd_Event command.