✂️ SnapShot — Fast Standalone Screen Capture Utility

SnapShot is a fast, lightweight, standalone desktop screen capture utility built for Windows with WinUI 3 Fluent Design principles. It delivers a pixel-perfect desktop screenshot experience (high-DPI scaling accuracy, custom crop selection, live vector annotation tools, mouse scroll stroke sizing, quick copy/save, infinite scrolling capture, auto-updater) without requiring administrative rights to install or run!

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🌟 Key Features

• 🚫 Zero Admin Privileges Required: Runs completely in user-space on Windows.
• 🎨 WinUI 3 Fluent Design UI: Modern Windows 11 Fluent aesthetic, acrylic/Mica dark and light themes, Segoe UI Variable typography, and WinUI control styling.
• 🎯 Pixel-Perfect Per-Monitor DPI Accuracy: DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2 eliminates coordinate shifts and image offsets across multi-monitor setups with mixed scaling factors.
• 🖥️ Seamless Multi-Monitor Desktop Support: Full virtual-desktop coverage across all connected monitors including primary and secondary displays. Double-click any monitor to instantly snap the entire screen.
• 📐 Custom Selection & Aspect Ratio Locking: Drag to crop any portion of multi-monitor screens. Lock crop aspect ratios (1:1, 16:9, 4:3, 3:2, 9:16). Hold Shift for perfect Square or Circle selection.
• 🎨 Live Vector Annotations:
  • ✏️ Pen (Freehand) (P / D)
  • 📏 Straight Line (L) [Hold Shift for 45° angle snap]
  • ➡️ Arrow (A) [Hold Shift for 45° angle snap]
  • 🔲 Rectangle (R) [Hold Shift for Square]
  • ⭕ Ellipse (E) [Hold Shift for Circle]
  • 🔤 Direct On-Screen Text (T): Type text live directly on canvas!
  • 💧 True High-Intensity Privacy Blur (B): Gaussian blur & pixelate mask.
  • 🎨 Expandable Color Drawer: Quick color swatches + custom color picker.
  • ↩️ Undo / Redo (Ctrl+Z, Ctrl+Y)
• 🖱️ Mouse Wheel Stroke Resizing: Scroll mouse wheel UP or DOWN anywhere on screen to adjust stroke thickness (1px–50px) or text font size live.
• ⌨️ Exclusive Global PrintScreen Hotkey: Intercepts PrintScreen key and suppresses default Windows Snipping Tool via Win32 event suppression.
• 📜 Infinite Scroll Capture: Interactive long screenshot mode with multi-frame overlap removal.
• 🔍 Google Lens Visual Search: One-click reverse image search for cropped screen region.
• 🔄 Auto-Update Service: Non-blocking background check for latest GitHub releases.
• 🚀 Windows Auto-Start: Configure launch on Windows boot without admin rights.

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🛠️ Quick Start

1. Installation

# Clone the repository
git clone https://github.com/aalooksth/snap-shot.git
cd snap-shot

# Install requirements
pip install -r requirements.txt

2. Usage & Hotkeys

• Run App (System Tray & Hotkeys):

  python main.py

• Trigger Quick Capture via CLI:

  python main.py --capture

• Hotkeys:
  • PrintScreen: Start screen capture
  • Double-Click: Snap entire monitor under cursor immediately
  • Ctrl+C: Copy snip to clipboard and close
  • Ctrl+S: Instant quick save to retained directory
  • Space: Restore last snip size & location
  • ?: Toggle floating tooltip badges over buttons
  • Esc: Cancel capture

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📝 Logging & Diagnostics

• Operational logs saved to %APPDATA%\SnapShot\logs\snapshot.log.

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📜 Version History & Changelog

v1.2.0 (Latest Release)

• Single-Instance Mutex Enforcement: Prevent duplicate running instances using named Win32 mutex (Global\SnapShot_SingleInstance_Mutex).
• Binary Metadata & PE Version Info: Embed complete Windows version resources (file_version_info.txt) for verified file properties in Windows Explorer.
• Authenticode Code Signing: Added automated PowerShell script (scripts/sign_app.ps1) for SHA256 digital signing and DigiCert RFC 3161 timestamping.
• Auto-Updater Process Release: Fixed Windows file lock on in-place executable updates via PID force-kill, retry loop, and immediate runtime exit (os._exit(0)).
• Bundler Dependency Fix: Restored standard library csv, email, html, and xml modules in PyInstaller build.
• Automated Binary Integrity Suite: Added Suite 3/3 verifying headless executable startup and transitive network module integrity.

v1.0.1

• DPI Alignment: Fixed coordinate offsets in high-DPI Windows desktop scaling.
• WinUI 3 Redesign: Acrylic/Mica themes, Segoe UI Variable typography, and auto-updater.

v1.0.0

• Initial standalone release of SnapShot screen capture utility.

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📞 Support & Inquiries

Made with ❤️ in 🇳🇵 by Alok - hello@aloks.com.np.

• Website: aloks.com.np
• Support / Inquiries: hello@aloks.com.np