The terminal's DarkScrollBar derives from Control, which is selectable by
default. Once enough output accumulated to create scrollback, the scrollbar
became enabled and was the only selectable child of the TerminalView
(a ContainerControl). On window re-activation (minimize/restore, click away
and back) WinForms restored focus down the container chain onto the scrollbar,
which has no keyboard handling, so typing/Enter went nowhere until the session
was reopened. This affected both Serial and PowerShell tabs (shared TerminalView),
and only after output appeared — matching the reported symptom.
Make the scrollbar mouse-only: SetStyle(Selectable, false) + TabStop=false, so
it never takes keyboard focus and the TerminalView keeps focus itself, exactly
as it already did when idle (scrollbar disabled).
Bump version to 0.3.3 and add the About changelog entry.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
etwenandClaude Opus 4.8
fc69adfae4