TrafficMonitor Mic Status Plugin

A TrafficMonitor plugin that shows microphone mute status in the taskbar.

⚠️ This code was generated by AI (Claude).

Features

• Shows a microphone icon on the taskbar via TrafficMonitor
• Green icon = mic active, Red icon with slash = mic muted
• Only visible when an application is actively using the microphone
• Left-click to toggle mute
• Auto-hides when no app is using the mic

Screenshot

🟢 MIC  — Mic active, app recording
🔴 MUT  — Mic muted, app recording
(nothing) — No app using mic

Build

Requires Visual Studio Build Tools with C++ and Windows SDK.

build.ps1

Or manually:

call "C:\Program Files (x86)\Microsoft Visual Studio\...\vcvars64.bat"
cl.exe /LD /MT /EHsc /O2 /utf-8 MicStatusPlugin.cpp /link /OUT:MicStatus.dll

Install

1. Copy MicStatus.dll to TrafficMonitor's plugins/ directory
2. Restart TrafficMonitor
3. Enable the plugin via context menu → Other Functions → Plugin Management
4. Make sure "Mic Status" is checked in the display settings

How It Works

• Uses Windows Core Audio API to detect:
  • Active capture sessions (apps using the mic)
  • Microphone mute state
• Polled every second via DataRequired() callback
• Custom-draws a microphone icon using GDI