What're the key codes for "Alt+Q Alt+Q"? - scripting

Question

I want to create a script that triggers when pressing Q twice while holding Alt, but couldn't figure out what're the correct key codes for that, could someone please shed some light?
P.S. I want to bind this shortcut to Ctrl+F12, which I assigned Sogou IME to turn on the Chinese input mode.

Answer 1

I didn't test this and there's probably a more concise way to do it, but I think something like this should work.
!Q::
If(keyPressed = 1){
...Do a thing...
}
keyPressed := 1
SetTimer, altQTimer, 50
return
altQTimer:
keyPressed := 0
return

Answer 2

TL;DR
In conclusion, even if I do all kinds of hacks and get the script working as intended, it's likely to break in the future, which is really not worth the trouble.
After hours of experimenting, the current conclusion is Sogou IME which uses Ctrl+F12 won't trigger the bound action i.e. switching to the Chinese input mode if it was sent by Alt+[Any Other Key], it can be triggered if it was sent by other shortcuts such as Ctrl+C, which is really unfortunate.
And the weirdest thing is the following code works:
^c::Send !q
!q::Send ^{F12}
And to rule out the potential extra simulated keystrokes (Ctrl by default) effect, the following code also works:
^!q::Send ^{F12}
But the following doesn't (tested on several machines):
!q::Send ^{F12}
Update
After much effort, I did get Alt+Q to turn on the Chinese input mode with the following code, not sure why:
!q::Send ^{F6}
^F6::Send ^{F7}
^F7::Send ^{F12}
But because I also need to trigger a VSCode command using Alt+Q at the same time, I had to modify the above code to the following:
~!q::Send ^{F6} ; with ~ prefixed
^F6::Send ^{F7}
^F7::Send ^{F12}
Now Alt+Q does trigger the VSCode command, but it won't turn on the Chinese input mode...
At last, if I take a step back and bind the VSCode command to Ctrl+C (which could turn on the Chinese input mode with just ^c::Send ^{F12}), I still have to prefix ^c with ~, otherwise it won't trigger the VSCode command, now I'm repeating the cycle all over again...
After all of these attempts, I have to say Sogou IME's logic for determining whether to enable the Chinese input mode is quite indeterminate, making the script for enabling the Chinese input mode very unreliable.
In conclusion, even if I do all kinds of hacks and get the script working as intended, it's likely to break in the future, which is really not worth the trouble.