ms-iot/galileo-sdk — pull request #57 by anthony-ngu (2014-09-09 00:08:06+00:00)
Title: Implemented Tone/NoTone

Implemented tone, noTone, and tone with duration using SetWaitableTimer. All tone calls are useable across multiple pins simultaneously.
Uses a map to keep track of running tones and Timers if used on those pins.
Also implemented testing scenarios around Tone and noTone