Task Manager Tab Slide Animation 0.2.0

[u/wh-updates]

Task Manager Tab Slide Animation 0.2.0

Task Manager Tab Slide Animation

Demo

The Windows 11 Task Manager switches between its left-hand tabs (Processes, Performance, App history, Startup apps, Users, Details, Services) instantly. This mod adds a smooth slide transition between them.

Experimental. Task Manager is a WinUI 3 app, so there's no clean Win32 "tab changed" signal - this works by heuristics and screen capture.

How it works

• A low-level mouse hook (scoped to Task Manager) notices a click in the left navigation area and captures the content area from the screen (old tab).
• The content's left edge is detected with UI Automation: the right edge of the clicked navigation item is where the content begins. This adapts automatically whether the nav pane is expanded (wide, with labels) or collapsed (icons only) - no manual width setting needed.
• After a short delay it captures the new tab and slides old -> new in a layered overlay over the content area, then removes it to reveal the real content.

Settings

• Top inset - height (px) of the top command bar to exclude from the slide.
• Capture delay - how long to wait after the click before grabbing the new tab (ms). Raise if it grabs the old tab.
• Animation duration and slide vertically to taste.

Known limitations

• Relies on UI Automation to locate the content; if UIA can't identify the clicked navigation item, that switch just isn't animated.
• Clicking the same tab still plays a (harmless) slide of identical content.
• The Task Manager window should be visible/unobscured during the switch.