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PowerToys/doc/devdocs/modules
Clint Rutkas af45c3ec7c Add press-and-hold activation mode to Quick Accent (#48937)
## Summary of the Pull Request

Adds an opt-in **press-and-hold** activation mode to Quick Accent, like
iOS / macOS: hold an accent-capable letter (e.g. `a`) and after a short,
configurable delay the accent picker opens automatically — no separate
trigger key (Space/arrows) required.

This is purely additive. The existing trigger-key modes (`Left/Right
arrow`, `Space`, `Both`) and all serialized settings values are
unchanged.


https://github.com/user-attachments/assets/faec298c-e42c-4fd1-84bd-6e74d1b481a0


### What it does

- Holding a letter types the base letter immediately, then arms the
picker. After the **Hold duration** (default **500 ms**) the toolbar
appears.
- Navigate the options with the arrow keys / Space, then **release the
letter** to insert the selected accent (it replaces the base letter).
- A quick tap types just the letter. Holding and releasing without
selecting leaves the base letter as-is.
- `Ctrl` / `Alt` / `AltGr` / `Win` + letter combinations are left
untouched, so shortcuts like `Ctrl+A` still work.

## PR Checklist

- [ ] **Closes:** N/A — feature enhancement (happy to link a tracking
issue if one is preferred)
- [x] **Communication:** Discussed direction with maintainers;
coordinated with #48891 (see below)
- [ ] **Tests:** No automated tests added — the activation decision
lives in the C++ low-level keyboard hook and isn't reachable from the
existing managed unit-test project. Validated manually (steps below).
Open to guidance on the preferred test surface.
- [x] **Localization:** All new end-user strings are in
`Settings.UI/Strings/en-us/Resources.resw` with translator comments.
- [x] **Dev docs:** `doc/devdocs/modules/quickaccent.md` updated with
the new mode.
- [x] **New binaries:** None.
- [x] **Documentation updated:** Dev docs updated; public Learn docs can
follow once shipped.

## Detailed Description of the Pull Request / Additional comments

- **`PowerAccentKeyboardService` (C++ hook):**
- Append `PressAndHold` to the internal `PowerAccentActivationKey` enum
(value `3`, appended to preserve serialized `0/1/2`).
- Add a `holdDuration` setting and `UpdateHoldDuration(Int32)` to the
WinRT projection (`.idl`).
- In `OnKeyDown`, arm the picker on the held letter itself; the base
letter still types on first press and auto-repeat is swallowed (reuses
the existing `m_toolbarVisible` repeat guard from #36853).
- In `OnKeyUp`, use the hold duration as the minimum-hold release
threshold for this mode (trigger modes keep using `inputTime`).
  - Modifier guard: Ctrl/Alt/AltGr/Win do not arm the mode.
- **Settings model (`Settings.UI.Library`):** append `PressAndHold` to
`PowerAccentActivationKey`; add `hold_duration_ms` (`IntProperty`,
default 500). Existing `settings.json` without the field falls back to
the 500 ms default.
- **`PowerAccent.Core`:** read and forward the hold duration to the
hook, and use it as the popup delay when `PressAndHold` is active.
- **Settings UI:** add the **"Press and hold the letter"** activation
option and a **"Hold duration (ms)"** control that is shown only when
that mode is selected.

### Enum sync note

`PowerAccentActivationKey` exists in both the C++ hook and the managed
settings library and is kept in sync by integer value. `PressAndHold`
was **appended** (never reordered) so existing serialized settings
(`0/1/2`) keep their meaning.

### Coordination with #48891 (Quick Accent WinUI migration)

This lands as its own atomic change on `main`. The overlap with the
in-progress WinUI migration (#48891) is tiny: only `PowerAccent.cs`'s
mode-aware popup delay (a single `Task.Delay` line). The C++ hook,
settings enum/model, and Settings UI are not touched by #48891, so it
can rebase onto this with minimal effort.

## Validation Steps Performed

- Built the full chain in `Debug|x64`:
- `PowerAccent.UI.csproj` → rebuilds the C++
`PowerAccentKeyboardService` projection (incl. `UpdateHoldDuration`) +
`PowerAccent.Core` + `Settings.UI.Library`. **0 errors.**
- `PowerToys.Settings.csproj` → Settings UI XAML / ViewModel / `.resw`
(XamlIndexBuilder search index regenerated). **0 errors.**
- Manual trial of the running module (`PowerToys.PowerAccent.exe`) with
`activation_key = 3`:
- Hold `a` → base letter types immediately; picker opens after ~500 ms;
arrows/Space navigate; releasing inserts the accent (replacing the base
letter).
- Quick tap → base letter only. Hold + release without selecting → base
letter remains.
  - `Ctrl+A` / `Alt`+letter unaffected.

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-07-03 03:43:37 +00:00
..
2026-06-18 12:36:52 -05:00
2026-05-21 17:27:52 +02:00

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:

  1. Create a dedicated markdown file for the module (e.g., modulename.md)
  2. If the module has specialized debugging tools, consider creating a separate tools document (e.g., modulename-tools.md)
  3. Update this index with links to the new documentation
  4. Follow the existing documentation structure for consistency