Why right alt (alt gr) acts like left ctrl?!

Question

Hi,

I defined four custom axes in Input Manager:

"left shift" or "right shift"
"left ctrl" or "right ctrl"
"left alt"
"right alt"

Then I was setting one enum variable according to certain combinations of these axes. I couldn't be more surprised, when it appeared, that 4. acted like it was 2. I double-checked my code and setting to be sure, but here it is: when I removed "left ctrl" (or both) from 2., "right alt" wasn't doing anything at all. When I left "left ctrl", "right alt" worked as 2. As I said, I double-checked everything, so there's no way I am mistaken.

But now... What the hell? Why is this happening? How to work this around (or is it possible)?

Answer 1

Answer by Deacon2099 · Apr 05, 2019 at 06:31 AM

I'm using Unity 5.5 and still got this issue. Example solution (more like a bypass) is:

If I want to use only Left Control then write "if left control was pressed and right alt was not pressed":

 if (Input.GetKeyDown(KeyCode.LeftControl) && !Input.GetKeyDown(KeyCode.RightAlt))

You can add check for "Alt Gr" too if you need it.

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Why right alt (alt gr) acts like left ctrl?!

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