Add the ability for inputs to be available even when the window is not in focus

[Gamemap]

Describe the project you are working on.

Voice chat

Describe the problem or limitation you have in your project.

When the window is in the background, you cannot press a key to activate a function. (In other programs like OBS, you can press a key to activate something).

Describe the function/enhancement and how it helps overcome the problem or limitation.

Add a boolean value to make an input work only when the window is only in focus or also in the background.

Describe how your proposal will work, with code, pseudo-code, mock-ups, and/or diagrams.

if Input.is_action_pressed("ui_accept", false): (only if focused window = false)

If this extension is not used often, can it be bypassed with a few lines of script?

No.

Is there a reason why this should be core and not an add-on in the asset library?

I think many others creating a program (like a timer or something) would need such a feature as well.

[Calinou]

Duplicate of #1919.