Comments (5)
Hi @Quget,
checking the connection status and requesting a value from the device is not implemented as I didn't had the need for that yet.
For the connection status, I guess you can try using a GattSession with MaintainConnection
set to true, as it is mentioned in the note on this doc page. The session has also an event in the case the connection-status changes.
Reading/Requesting a specific characteristic value from the device can be done with the ReadValueAsync function . You can use the code of SendData
as template for that. This is the easier one. Alternatively you can write to one characterstic and program your device so that it will trigger a notification of the characteristic you're interested in.
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You can checkout the Microsoft sample (C# and equivalent C++ code) as reference for ReadValueAsync.
In my case I first got it to work in C# UWP, then in a C++ winrt console program and then in the dll. If you'll have specific questions regarding the code, feel free to ask.
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I think I manage to get the read one in. Just got to test it out.
Using the same queue as the subscribed characteristic.
Connection status will be a bit of a problem but I will get there I think :)
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Thanks for the quick reply! I did try to go trough the source code.
But I don't know c++ so well. It will take me a while to understand it.
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As reference for reading specific characteristics:
tufeixp's ReadDataAsync function: #30 (comment)
SendData code as comparison if you want to add error handling or blocking read:
BleWinrtDll/BleWinrtDll/BleWinrtDll.cpp
Lines 528 to 561 in f2635b7
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