Modifier keys get "stuck" when switching input source

[Phillipus]

v.1.16.2

Thanks for making this handy utility!

• I have two input sources for my Dell U2723QE monitor, a Mac Mini and a Windows box
• In TT I assigned shortcut keys Ctrl+F15 to switch input source to the Mac Mini - DDC command "0x60 27"
• When switching input from Windows to Mac and back to Windows again (using Better Display on Mac) the Ctrl key is stuck "on", that is I have to press it again to release it. The same is true for any modifier key such as Shift or Alt.

It's as if the modifier key release event is not picked up by TT when switching so that when switching back to Windows it considers the modifier key to be still down.

[xanderfrangos]

Is the keyboard shared through the monitor to the Mac/PC? Also, when the key gets stuck, are other apps affected other than Twinkle Tray?

[Phillipus]

Is the keyboard shared through the monitor to the Mac/PC? Also, when the key gets stuck, are other apps affected other than Twinkle Tray?

Yes, the keyboard is shared. All apps (and the OS) are affected when switching back to Windows, so it's a global thing.

[xanderfrangos]

I'm pretty sure this from Windows losing the keyboard mid-press while the input source is changed, rather than Twinkle Tray itself. You may want to try using the Twinkle Tray CLI for this, rather than a shortcut. It'd be something like:

"%LocalAppData%\Programs\twinkle-tray\Twinkle Tray.exe" --MonitorNum=1 --VCP="0x60:27"

[Phillipus]

I'm pretty sure this from Windows losing the keyboard mid-press while the input source is changed, rather than Twinkle Tray itself.

If I use Dell's DDPM app to do the same it's OK (I'd rather use TT). Is TT trapping key presses?