"Switchbox" Key Activation

[WiRiZi]

Well, i got no idea how iam going to explain this in a understandable way. But imma give it a try. So I am going to build a small wooden box and put some normal On / Off switches in it. And to get the switches working I am going to connect the buttons to a old keyboard "motherboard", but what this means is that when i flip the switch over it will act like I am holding the key until i switch the switch off again. But what i want it to do is make it act like i press the button one time when i switch it up and press the button again when i switch it off. I hope that made some sense, feel free to ask questions. Also I am not sure if this is the right topic or if it should be under programming or something  All answers are appreciated .

[Epic_Nex]

Not exactly sure how you would do it, but why do you want to? I mean why flip the switch once to press the key once instead of just pressing the key?

[WiRiZi]

6 minutes ago, Epic_Nex said:

Not exactly sure how you would do it, but why do you want to? I mean why flip the switch once to press the key once instead of just pressing the key?

Iam going to use the box beside my steering wheel when i play euro truck for light modes etc. ingame. And to turn on the lights you press once (which i want to be up on the switch) and once more to turn them off (which i want to be down an / or off on the switch).

 

EDIT: Misread your reply  the reason iam building it is because i want to have switches for light modes etc. in sim games.