TC Screen Region Pin

TC Screen Region Pin is a desktop productivity utility for Linux that captures live screen regions or cropped image files and pins them as frameless always-on-top floating mini-windows.
An independent Linux alternative inspired by PowerToys Crop and Lock for keeping reference crops, terminal monitors, charts, and documentation snippets pinned visibly above active workspaces.

Key Features:
- Real Desktop Screen Region Capture: Captures live display regions via QScreen.grabWindow(0, x, y, w, h) across single or multi-monitor setups with an interactive crosshair rubber-band selector and coordinate controls.
- Frameless Always-on-Top Pinned Mini-Windows: Spawns lightweight frameless floating windows (Qt.WindowStaysOnTopHint) with mouse-drag positioning, wheel zoom scaling (25% to 400%), adjustable window opacity (20% to 100%), and customizable border highlights.
- Live Region Refresh Timer: Configurable per-pin refresh timer (100 ms to 5000 ms) to continuously update pinned screen regions with real-time frame counters and capture latency telemetry.
- Active Pin Manager & Profiles: Centralized table to inspect live thumbnails, pause or resume timers, adjust zoom/opacity/borders on the fly, save or restore pin workspace profiles, and export pin inventories to CSV, JSON, or TXT.
- Host Image Crop & PNG Export: Browse real PNG, JPEG, BMP, and WebP files from the user home directory or system pixmaps, crop exact pixel regions with RGB luminance telemetry, pin them on top, or export crisp PNG snapshots.
- Display & DRM Subsystem Inspector: Reads real monitor geometry, DPI, refresh rates, and Linux /sys/class/drm connector statuses with bilingual English and Vietnamese UI support.

Disclaimer: This project is an independent open-source utility built by TC Studio and is not affiliated with, sponsored by, or endorsed by Microsoft Corporation.