Connect 2 DLLs to one BLE IndoorBike

[ShuohengZhang]

#26 Hi @adabru, I have fixed the DllNotFoundException by downloading the dlls that are missing. As only the write functions in BleWinrtDll do not work in my project, I want to use my DLL as a substitute. As I tested them separately, they worked well. However, when I use BleWinrtDll to subscribe to the 2ad2 (and ignore the 2ad9), I still cannot subscribe to the write function through my DLL.

As the screenshot shows, it goes from line 218 to 220 and does not go in.

At this position, I would like to know if there are any locks in your functions that prevent another app or program from subscribing to the same service? Thank you.

Best regards,
Shuoheng

[adabru]

Are you using both dll's simultaneously? Do you get an exception? If not, maybe the service has zero characteristics?

I had problems on getting a BLEDevice or Service multiple times from Windows and had to cache them in BleWinrtDll.cpp. Maybe caching the device/services will help?

[ShuohengZhang]

Yes I'm using them simultaneously, and I got no exception. I think ur right, the second dll subscribed to the service but has no characteristics to find and subscribe ( like blocked by the other one).

Maybe I can try to cache them, but as I have seldom experience with build and test dlls, could you please explain with more detail so that I can have a try.

Thank you !

[adabru]

In line 211, instead of calling device.GetGattServicesAsync()), can you store the service from step 3.1 in a variable and reuse that variable here?