How to get services and characteristics from bluetooth LE device - c++

Question

I'm writing desktop app in Windows 8.1, and I need to get services from paired device using BluetoothGATTGetServices function. To make it I need to get handle to the device, that I've done and get handle using CreateFile function. But when I try to get service function return error: HRESULT_FROM_WIN32(ERROR_NOT_SUPORTED). Does anyone know how to fix it or tell what I'm doing wrong.
My device I'm trying to get services is iPhone 5s.
Here is code example:
HRESULT WinBluetoothDeviceProvider::GetBleHandle(OUT HANDLE* hBluetooth, WinBluetoothDevice* blDev)
{
GUID bthGuid;
CLSIDFromString(TEXT(BLE_INTERFACE_GUID), &bthGuid); // BLE_INTERFACE_GUID this is GUID of my Device Interface GUID
//#define BLE_INTERFACE_GUID "{00f40965-e89d-4487-9890-87c3abb211f4}"
HRESULT result = S_OK;
HDEVINFO hDevInfo;
SP_DEVINFO_DATA devInfoData;
HANDLE hBle;
hDevInfo = SetupDiGetClassDevs(&bthGuid, NULL, NULL, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
if (hDevInfo == INVALID_HANDLE_VALUE)
return E_FAIL;
devInfoData.cbSize = sizeof(SP_DEVINFO_DATA);
SP_DEVICE_INTERFACE_DATA devInterfData = { 0 };
devInterfData.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
DWORD DataT;
LPTSTR buffer = NULL;
DWORD buffersize = 0;
devInfoData.cbSize = sizeof(SP_DEVINFO_DATA);
for (DWORD i = 0; SetupDiEnumDeviceInterfaces(hDevInfo, NULL, &bthGuid, i, &devInterfData); i++)
{
DWORD d = GetLastError();
DWORD size = 0;
if (!SetupDiGetDeviceInterfaceDetail(hDevInfo, &devInterfData, NULL, 0, &size, 0))
{
if (GetLastError() == ERROR_NO_MORE_ITEMS)
{
result = S_OK;
break;
}
PSP_DEVICE_INTERFACE_DETAIL_DATA pInterfaceDetailData = (PSP_DEVICE_INTERFACE_DETAIL_DATA)LocalAlloc(LPTR, size);
pInterfaceDetailData->cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA);
if (!SetupDiGetDeviceInterfaceDetail(hDevInfo, &devInterfData, pInterfaceDetailData, size, &size, &devInfoData))
{
result = E_FAIL;
break;
}
hBle = CreateFile(pInterfaceDetailData->DevicePath,
GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,
NULL);
USHORT serviceBuffActual;
PBTH_LE_GATT_SERVICE servicesBuff = new _BTH_LE_GATT_SERVICE;
HRESULT result = S_OK;
result = BluetoothGATTGetServices(hBle,
0, NULL, &serviceBuffActual, BLUETOOTH_GATT_FLAG_NONE);
// this function always retunr ERROR_NOT_SUPPORTED
LocalFree(pInterfaceDetailData);
}
}
SetupDiDestroyDeviceInfoList(hDevInfo);
return result;
}

Answer 1

Try https://gist.github.com/programmarchy/c9d02e22d58bfab3f8bb#file-gistfile1-cpp-L110-L117, without FILE_ATTRIBUTE_NORMAL
hComm = CreateFile(
pInterfaceDetailData->DevicePath,
GENERIC_WRITE | GENERIC_READ,
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL,
OPEN_EXISTING,
0,
NULL);