enable/disable Bluetooth radio with socket interface on CE 5.0

Question

 

I am looking for a way to enable/disable the Bluetooth radio using the socket interface on CE 5. I doesn't seem like getsockopt has an option to do this and the btdrt dll appears to be unlinkable from an unmanaged C++ dll. Any thoughts on this matter would be appreciated.

Answer 1

Hi sienaman,

Getsockopt method don't have a option to set bluetooth radio, you can find the all the options here.

 

As a workaround, you can BthSetMode API to enable or disable Bluetooth radio, you can use the API to set three status:

BTH_POWER_OFF

Turn off the Bluetooth radio.

BTH_CONNECTABLE

Turn on the Bluetooth radio, and make it connectable.

BTH_DISCOVERABLE

Turn on the Bluetooth radio, and make it both connectable and discoverable.

Here is a sample:

http://msdn2.microsoft.com/en-us/library/bb416244.aspx

 

Best regards,

Guang-Ming Bian - MSFT

Answer 2

Unfortunately BthSetMode/BthGetMode functions as well as bthutil.dll library are unavailable for CE 5.0. They exist on PPC2003, WM5, etc, but not on CE 5.0. Anyway I have not seen a controller with CE 5.0 that supports these functionality.

All the other Microsoft Bluetooth API functions (except for BthSetMode/BthGetMode) exist and work perfectly... If you know how to turn Bluetooth power on, of course.

I am used to using special libraries from the controller manufacturer for Bluetooth power management, but I would appreciate if somebody knows a universal approach that works on any CE 5.0 controller with the Micrtosoft Bluetooth stack.

Answer 3

According to the documentation, it is supposed to be available from CE 4.2 on. I looked at a couple of bluetooth related projects I did for Mobile 5 and Pocket PC 2003. In both I had added bthutil.lib to the linker command line to get the power APIs. If that isn't an option though, I think you are out of luck for a "universal" solution.

 

Answer 4

Is it possible to use the bthutil.dll library on WM6 ...? Till now i dont think i could find the library and had to rely on a third party stack like inthehand .. to use bluetooth functions...?