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I use VS C++ 2015-2022 Redistributable (x64) 14.40.33810 with Windows SDK version 10.0.226100.3233,
I am able to pair with a BLE device using the UWP API, but I have had absolutely no luck in unpairing the device. I am in need of an urgent help.
Thank you for helping and providing the support.
Hello @F FARAH ,
Welcome to Microsoft Q&A!
You are using VS C++ 2015-2022 Redistributable (x64) 14.40.33810, what is your project? Is it a c++/WinRT project?
Thank you.
Hello @junjie zhu
Yes, I have VS C++ 2015-2022 and the project is C++/WinRT/UWP. I do have device, service, and characteristic objects with subscription to valuechanged event. I am able to pair with a BLE device using PairAsync, but doing disconnect does not work at all, by closing the device, service, session. I was not lucky to unsubscribe the valuechanged event, and not sure if needed. I need help as this hinders a required released product. Thank you.
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Hope you've been well. Does Junjie's answer and comment make sense?
Hello @F FARAH ,
There is no public UWP API that can directly disconnect a Bluetooth device, the explicit Disconnect is not supported in Windows. This is by design to make sure that other apps are not impacted that may be communicating with the device.
Thank you.
Hello @junjie zhu ,
Then what is the purpose of having the Close() function for device, service, and session objects. What is the purpose of having devicewatcher remove event. Why does the Bluetooth settings in Windows have the remove device button? How can that same functionality be done in programming? I am not looking for an explicit function to disconnect the bluetooth, but a series of operations to close the connection and remove it from the paired list. Thank you for help. Also, there is a IOCTL DeviceIOControl() function that can send the signal in kernel mode device driver to remove it. I have problem in using that function as the first parameter is a HANDLE, and I don't have one.
Thank you for support.
Also, there is a IOCTL DeviceIOControl() function that can send the signal in kernel mode device driver to remove it.
Someone has tried that, and it didn't work.
I am not looking for an explicit function to disconnect the bluetooth, but a series of operations to close the connection and remove it from the paired list.
I asked the Bluetooth Team, they said it's by design and currently the only way to do it is for the user to manually disconnect or unpair.
Thank you.