Function to select input-keyboard language

[Gintaras]

I use this macro:

Function switch_language
Trigger I     

Code:

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key SA

It remaps Insert -> Shift+Alt, which never leaves Alt toggled which often happens when I press Alt+Shift manually. On my computer Shift+Alt is default, not changed to Shift+Ctrl.

I don't know why SendKeysToWindow works, it seems it shouldn't because it is a system hotkey.