Re: [hatari-devel] Keyup bug in SDL GUI

[Thorsten Otto <admin@xxxxxxxxxxx>]

On Dienstag, 29. November 2022 11:21:21 CET Andreas Grabher wrote:

> I have some more keyboard issues. Calling host routines can cause stuck

> keys, especially stuck modifiers. Not sure how this can be fixed.

 

That can easily happen with most of the keys that are handled by the window manager. Eg. when pressing alt-tab:

 

- you press alt. This is seen by Hatari.

- you press Tab. This is not seen by Hatari, and another window gets the focus.

- you release alt/tab. Only seen by the foreign application, if at all.

- you activate Hatari again by clicking on the window title. Hatari still thinks that Alt is pressed.

 

That is common to most emulators. Unless you do some kind of hard-grab, thus preventing those global keyboard shortcuts (imho a bad idea), there is not much you can do about that. Best workaround might be to refresh at least the state of the modifiers when the window gets focus.