WinRT/C++ - Concurrent MIDI / BLE connection

Question

Hey!

My team has been struggling with a pretty strange issue while using the WinRT/C++ APIs for Windows to connect to both a MIDI port and receive BLE notifications through a proprietary service on the same device.

The WinRT/C++ library itself is pretty nice and provides easy and modern C++ interfaces to access the managed Windows runtime classes. I've even ported the JUCE WinRT MIDI implementation on my JUCE fork to use WinRT/C++ (which is now recommended by Microsoft over the older WRL/ComPtr based approach). I got rid of about 400 LOC and there is probably still room for improvement.

That being said, we've been struggling with a pretty strange issue for the past weeks and we'd love some insight. I've pushed a sample repo to Github. The readme goes through the problem in detail. We are at quite a standstill in our project and we need an acceptable solution.

Is there any reason that creating both a MidiInPort and a BluetoothLEDevice for the same device should cause these issues? From the fact that this procedure for a single device works fine, I don't understand where this limitation might come from.

Best,
Daniel

Answer 1

Hello,

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