A lightweight, zero-asset Windows system tray application to monitor the battery level of the Apple Magic Keyboard (Numeric Keypad / Touch ID models) via Win32 HID API.
- Zero External Assets: No
.icofiles required. The tray icon is rendered dynamically in memory, pixel by pixel, reflecting the exact battery percentage. - Sleek Configuration UI: A dark-themed settings dialog to easily customize update intervals and low-battery notification thresholds without bloated UI frameworks.
- Multilingual Support: Automatically detects Windows OS locale (defaults to English) and supports dynamic runtime language switching (English / Japanese).
- Silent Background Updates: Status polling runs completely in the background, eliminating any context menu flickering during status updates.
- Smart Low-Battery Notifications: Triggers a Windows system toast notification once when the battery drops below your specified threshold (built-in duplicate prevention).
- Bypass Exclusive Lock: Uses a smart Win32
CreateFilehack (Access: 0) to communicate with the device even while Windows holds an exclusive lock for typing input. - Seamless Startup Integration: Easily toggle "Run at Windows Startup" directly from the configuration dialog (Registry-backed).
- Ultra Low Overhead: Optimized polling interval that consumes virtually zero CPU, Bluetooth bandwidth, or keyboard battery.
- Apple Magic Keyboard with Numeric Keypad (Product ID:
026c)- Connection: Bluetooth Classic (HID)
- Report ID:
0x90(Input Report, 3rd byte)
- .NET 10 SDK (Windows Desktop workload)
Clone the repository and run the following command in PowerShell:
dotnet run
To generate a standalone, single-file executable:
dotnet publish -c Release -r win-x64 --self-contained false /p:PublishSingleFile=true
The compiled executable will be generated in bin/Release/net10.0-windows.../publish/.
This project is licensed under the MIT License - see the LICENSE file for details.