Function BluetoothGATTRegisterEvent
pub unsafe fn BluetoothGATTRegisterEvent(
hservice: HANDLE,
eventtype: BTH_LE_GATT_EVENT_TYPE,
eventparameterin: *const c_void,
callback: PFNBLUETOOTH_GATT_EVENT_CALLBACK,
callbackcontext: Option<*const c_void>,
peventhandle: *mut isize,
flags: u32,
) -> Result<()>