Windows 10: Winsock 2 Bluetooth device discovery only shows paired devices

Hello Folks,


So I am trying to use the WINSOCK 2 API for Bluetooth programming. I did a build on the example project on the MICROSOFT website see here, https://code.msdn.microsoft.com/windowsdesktop/Bluetooth-Connection-e3263296 . So project builds and code works fine.


I wrote my own function in order to just scan for available devices near me, the strange thing is that I can only see devices which my PC is paired with. Is it possible to see all nearby devices without pairing them before? Here is my code, (I did call WSAStartup(MAKEWORD(2, 2), &WSAData) successfully before):

void DiscoverDevices(void)
{
BLUETOOTH_DEVICE_SEARCH_PARAMS btSearchParam{};
BLUETOOTH_DEVICE_INFO btDeviceInfo{};
HBLUETOOTH_DEVICE_FIND hBtDevice{};


/*Setting search parameter for discovery*/
btSearchParam.dwSize = sizeof(BLUETOOTH_DEVICE_SEARCH_PARAMS);
btSearchParam.fIssueInquiry = TRUE;

btSearchParam.fReturnAuthenticated = TRUE;
btSearchParam.fReturnUnknown = TRUE;
btSearchParam.fReturnConnected = TRUE;
btSearchParam.fReturnRemembered = FALSE;
btSearchParam.cTimeoutMultiplier = 2;


btDeviceInfo.dwSize = sizeof(BLUETOOTH_DEVICE_INFO);

hBtDevice = BluetoothFindFirstDevice(&btSearchParam, &btDeviceInfo);
if (hBtDevice)
{
wprintf(L"*********************\n");
wprintf(L"Bluetoothapi device search started!\n");
wprintf(L"*********************\n\n");

wprintf(L"Device name: %s\n", btDeviceInfo.szName);

while(BluetoothFindNextDevice(hBtDevice, &btDeviceInfo))
{
wprintf(L"Device name: %s\n", btDeviceInfo.szName);
}

BluetoothFindDeviceClose(hBtDevice);
}
else
{
wprintf(L"Error finding first device %d\n", GetLastError());
}
wprintf(L"\n");
}

:)

 

Bluetooth Devices will not Pair


Hi,

Hopefully this is the correct Forum !

I have a Microsoft Mouse 5000 and Wedge keyboard (the early one that does not fold).
Both have been working perfectly.

Recently I paired them both successfully with a new Samsung tablet, but when I came to use them again on my laptop,
I found that I could not pair either of them.

I have spent countless hours researching this without success.

Here's where I am now:

Settings > Bluetooth & other devices does not list either of them.
Device Manager > Bluetooth has both of them showing and reports both working properly.

Device Manager reports as follows:

Notebook Mouse 5000:
No driver files are required or have been loaded
The Events tab says that further installation is required

Wedge Mobile Keyboard:
No driver files are required or have been loaded
The Events tab says that further installation is required

The 2 Service Discovery Service entries also report that further installation is required.

Can anyone suggest the way forward, please ?

Regards.

 

My Bluetooth device is enabled and shows as “Paired”, but isn’t working

Hello,

Windows 10 changed the status text in the Settings app for Bluetooth devices.
Bluetooth devices will only show as “Connected” when the device is actually in use and transferring data.
When the device is not active, the status will show as “Paired”.

Make sure Discovery is enabled for your Bluetooth devices.
(Go to Settings > Devices > Bluetooth
> More Bluetooth options. Then make sure “Allow Bluetooth devices to find this PC” is enabled.) Then try removing and then re-pairing the Bluetooth device.

If the issue persists, please reply back to this thread.
In order for us to best understand how to resolve your problem, please make sure to provide:

• 
  The make and model of your computer
  
• 
  The type of Bluetooth device, and it’s driver, version, and date of the driver version
  
• 
  Any details you have regarding the symptoms, such as the error code or message you encounter
  

Any workarounds that you’ve already attempted outside of the steps listed above.

 

Bluetooth Device Not Showing


I have an LG HBS1100 Bluetooth headset that I would like to pair with my PC. Usually(on my laptop) when the headset is in pairing mode it shows up as two devices. LG HBS1100_BLE and LG HBS1100 if you attempt to pair to the _BLE device windows says "something didn't work" however it pairs just fine to the other device. Having just finished building a new desktop I sys-prepped and cloned my laptops harddrive and booted that on my desktop. After installing the Bluetooth drivers, the list of paired devices from the laptop is still here, but it won't connect to any of the devices(not surprised). I clicked remove device on HBS1100 and windows said 'Remove failed' after trying again it removed the device just fine. The issue is, now for some reason it no longer detects HBS1100, but it does detect HBS1100_BLE just fine. I tried going back to my laptop to make sure it isn't the headset, and it pairs with the laptop just fine. I also reinstalled the Bluetooth drivers on the desktop which didn't help. Any ideas?

Thank you very much ~