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## Summary of the Pull Request Gives every saved PowerDisplay profile a stable, auto-incrementing integer ID and makes the app address profiles by that ID instead of by name. Duplicate profile names are allowed, renames preserve identity, and LightSwitch stores stable profile references. > Split out of the PowerDisplay CLI branch (#48632). CLI-specific contracts and commands remain in that stacked PR. ## PR Checklist - [x] **Closes:** N/A - split from #48632. - [x] **Communication:** Discussed with core contributors. - [x] **Tests:** Added and passing in `PowerDisplay.Lib.UnitTests`. - [x] **Localization:** The composed profile label uses a shared localized format resource. - [x] **New binaries:** None. - [x] **Documentation updated:** `doc/devdocs/modules/powerdisplay/design.md`. ## Implementation ### Profile model and persistence - `PowerDisplayProfile.Id` is the stable JSON `id`; `0` means unassigned. - `PowerDisplayProfiles.NextId` is monotonic and IDs are never reused. - `SetProfile` assigns IDs to new profiles and replaces existing profiles by ID. - Duplicate names are supported; name lookup remains only for migration of legacy references. - `ProfileStore` serializes cross-process load/modify/save operations with a named mutex and atomically replaces `profiles.json`. - Production callers use asynchronous `ProfileHelper` APIs. ### Migration and application - Initial PowerDisplay discovery assigns missing profile IDs and migrates legacy monitor IDs. - LightSwitch legacy name references are reconciled to IDs and written back to the current typed settings schema. - Native LightSwitch publishes pure light/dark theme events; PowerDisplay exclusively validates profile enablement and stable IDs. - Settings UI and Named Pipe ApplyProfile actions send invariant positive profile IDs. - PowerDisplay validates the ID, loads the current profile, and applies its monitor settings. ### Settings UI - Create, edit, apply, and delete operations use stable IDs. - LightSwitch selectors store profile IDs and keep legacy name fields only for migration. - Profile lists use a localized name-and-ID label so duplicate names remain distinguishable. ## Accepted Trade-offs - Profile ID migration remains dependent on the initial monitor discovery; a failed or delayed discovery can temporarily hide legacy ID-less profiles. - The one-time PowerDisplay LightSwitch migration rewrites the complete current typed settings object and does not add a new cross-process settings transaction. ## Validation - Built the affected x64 Debug projects with the repository build scripts. - `PowerDisplay.Lib.UnitTests`: 186 passed, 0 failed. --------- Co-authored-by: Yu Leng (from Dev Box) <yuleng@microsoft.com> Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
PowerToys Modules
This section contains documentation for individual PowerToys modules, including their architecture, implementation details, and debugging tools.
Available Modules
| Module | Description |
|---|---|
| Advanced Paste | Tool for enhanced clipboard pasting with formatting options |
| Always on Top | Tool for pinning windows to stay on top of other windows |
| Awake | Tool to keep your computer awake without modifying power settings |
| Color Picker | Tool for selecting and managing colors from the screen |
| Command Not Found | Tool suggesting package installations for missing commands |
| Crop and Lock | Tool for cropping application windows into smaller windows or thumbnails |
| Environment Variables | Tool for managing user and system environment variables |
| FancyZones (debugging tools) | Window manager utility for custom window layouts |
| File Explorer add-ons | Extensions for enhancing Windows File Explorer functionality |
| File Locksmith | Tool for finding processes that lock files |
| Hosts File Editor | Tool for managing the system hosts file |
| Image Resizer | Tool for quickly resizing images within File Explorer |
| Keyboard Manager | Tool for remapping keys and keyboard shortcuts |
| Mouse Utilities | Collection of tools to enhance mouse and cursor functionality |
| Mouse Without Borders | Tool for controlling multiple computers with a single mouse and keyboard |
| NewPlus | Context menu extension for creating new files in File Explorer |
| Peek | File preview utility for quick file content viewing |
| Power Rename | Bulk file renaming tool with search and replace functionality |
| PowerToys Run (deprecation soon) | Quick application launcher and search utility |
| Quick Accent | Tool for quickly inserting accented characters and special symbols |
| Registry Preview | Tool for visualizing and editing Registry files |
| Screen Ruler | Tool for measuring pixel distances and color boundaries on screen |
| Shortcut Guide | Tool for displaying Windows keyboard shortcuts when holding the Windows key |
| Text Extractor | Tool for extracting text from images and screenshots |
| Workspaces | Tool for saving and restoring window layouts for different projects |
| ZoomIt | Screen zoom and annotation tool |
Adding New Module Documentation
When adding documentation for a new module:
- Create a dedicated markdown file for the module (e.g.,
modulename.md) - If the module has specialized debugging tools, consider creating a separate tools document (e.g.,
modulename-tools.md) - Update this index with links to the new documentation
- Follow the existing documentation structure for consistency