quickscan

QuickScan · 轻量桌面扫码工具

English | 中文

常驻系统托盘的二维码扫码器，按快捷键呼出，截屏框选屏幕上任意二维码——网页、聊天窗口、图片,一键复制或打开。

使用

1. 启动后按 Ctrl+Alt+Q（默认快捷键）呼出小部件
2. 点击「截屏扫码」（空格键），屏幕进入框选模式
3. 拖拽框选二维码后自动识别
4. 弹出结果卡片：一键复制 / 浏览器打开；自动收起（可配置）

也可以直接把二维码图片 Ctrl+V 粘贴或拖入窗口识别

功能

• 截屏框选识别：全屏覆盖 + 拖拽选区（实时尺寸标注），松手即识别
• 多屏支持：遮罩铺满所有显示器，可跨屏拖拽框选；小部件在鼠标所在的那块屏上呼出
• 触屏支持：手指直接拖拽框选；框选右上角 ✕ 按钮可退出（平板 / 翻转本无需键盘）
• 开机自启动：注册表写入被拒时自动回退到启动文件夹快捷方式（兼容 Run 键被安全软件锁定的机器）
• 结果自动分类：链接 / WiFi / 文本；一键复制、浏览器打开
• 全局快捷键呼出 / 收起（默认 Ctrl+Alt+Q；设置中点击后直接按下新组合键即生效）
• 极简风格动效
• 系统托盘常驻：左键呼出，右键菜单（呼出 / 设置 / 退出）
• 粘贴 / 拖拽图片识别；明暗模式跟随系统

技术栈与轻量化

• Tauri 2（Rust + WebView2）：安装包 ~1.4 MB，驻留内存 ~30 MB
• 原生 TypeScript + Vite，零前端框架；jsQR 解码（仅对框选区域解码）
• 截屏：xcap 逐屏抓取后按物理坐标拼成覆盖整个虚拟桌面的 RGBA 直传（无图片编码开销），用完即删、画布即释
• 动画只走 transform / opacity（GPU 合成）；prefers-reduced-motion 自动降级
• release 构建：opt-level=z + LTO + strip + panic=abort
• 设置本地 JSON 持久化，零数据库依赖

开发

前置：Node ≥ 18、Rust 工具链、WebView2 运行时（Windows 10/11 自带）。

npm install
npm run tauri dev     # 开发（热更新）
npm run tauri build   # 打包 NSIS / MSI 安装包

---

QuickScan · Lightweight Desktop QR Scanner

中文 | English

A tray-resident QR code scanner. Press a hotkey, frame-select any QR code on your screen — web pages, chat windows, images — then copy or open it with one click.

Usage

1. After launching, press Ctrl+Alt+Q (default hotkey) to summon the widget
2. Click "Capture & Scan" — the screen enters selection mode
3. Drag to frame the QR code and it is decoded automatically
4. A result card pops up: copy / open in browser; auto-collapse (configurable)

You can also paste (Ctrl+V) or drag an image with a QR code onto the widget.

Features

• Screen-capture selection: fullscreen overlay with drag selection (live size hint), decode on release
• Multi-monitor: the overlay spans every display, so selections can be dragged across screens; the widget pops up on whichever monitor the cursor is on
• Touch support: drag to frame with your finger; a ✕ button at the top-right exits capture mode (no keyboard needed on tablets/convertibles)
• Autostart: falls back to a Startup-folder shortcut when the registry Run key is locked down by security software
• Auto classification: URL / Wi-Fi / text; one-click copy and open-in-browser
• Global hotkey to show/hide (default Ctrl+Alt+Q; in settings, click and press a new combo — applied instantly)
• Minimalist motion design
• Tray icon: left-click to summon; right-click menu (show / settings / quit)
• Paste / drag-image decoding; light/dark theme follows the system

Tech & Footprint

• Tauri 2 (Rust + WebView2): installer ~1.4 MB, resident memory ~30 MB
• Plain TypeScript + Vite, zero frontend framework; jsQR decodes only the selected region
• Capture: every monitor grabbed via xcap and stitched by physical coordinates into one virtual-desktop RGBA buffer (no image-encoding overhead); temp file deleted right after use, canvas released on exit
• Animations use only transform / opacity (GPU-composited); honors prefers-reduced-motion
• Release build: opt-level=z + LTO + strip + panic=abort
• Settings persisted as local JSON — no database

Development

Prerequisites: Node ≥ 18, Rust toolchain, WebView2 Runtime (bundled with Windows 10/11).

npm install
npm run tauri dev     # dev mode (HMR)
npm run tauri build   # build NSIS / MSI installers