Keywait and simultaneous keypresses

[Sure]

Hi,
I'm still fairly new to AHK so I'm not quite sure how trivial this is. I have the following script set up.

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$a::
    Send {a down}
    keyWait, a
    Send {A}
    Send {a up}
return

$d::
    Send {d down}
    keyWait, d
    Send {D}
    Send {d up}
return

These work fine on their own but in the following sequence with simultaneously held keys I'm getting an undesired result.
Here's the outputs I expected (left) | received (right)
hold a: a | a
hold d: ad | ad
release a: adA | ad
release d: adAD | adDA

I can sort of understand the intuition behind how this works (feel free to elaborate if you're so inclined) but I'm a bit lost as to how to get to my desired output.

Thanks in advance for any help and / or pointers you can provide!

[mikeyww]

The standard AHK version 1.x runs one thread at a time. When you press a second hotkey, it interrupts the running routine until the new routine is finished. Try:

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a Up::
d Up::Send % "+" SubStr(A_ThisHotkey, 1, 1)
$a::
$d::
Send % hk := SubStr(A_ThisHotkey, 2)
KeyWait, %hk%
Return

Comment: after you Send {a down}A, A is up, so there is no need to send it up immediately again. Inspect the KeyHistory to understand this.

Code: Select all

#InstallKeybdHook
F3::Send {a down}A

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