Hello Andrew
With your information, i was able to fix the problem. I used the bb_api as a guide, so assumed the device id had to be a reference, which was the problem.
Bad:
[DllImport(“tg_api.dll”, CallingConvention = CallingConvention.Cdecl)]
public static extern tgStatus tgOpenDevice(ref int device);
Good:
[DllImport(“tg_api.dll”, CallingConvention = CallingConvention.Cdecl)]
public static extern tgStatus tgOpenDevice(int device);
Thank you very much
Nazar
