Volume_Up mapped to a mouse button doesn't get supressed

[ghost]

Hi there!

I just recently migrated all my Games stuff from dual boot Windows to Debian and right now I'm trying to make the mouse buttons obey my will. :-D So thank you for porting AHK! Although coming from v2 syntax will make me rewrite all my scripts, that surely is better than nothing at all.

I have two buttons on the mouse which issue Volume_Up and Volume_Down, respectively. I'm trying to send something else (k in this example):

Volume_Up::Send, k
return

However, besides printing a k, the volume is also increased. I tried Volume_Up::k as well, with the same result.

Is there a prefix (like an inverted ~) that intentionally suppresses the original key?

Regards