How to recognize two Joysticks

[CTR]

Hi,

I am programming an application in LabVIEW with a type of joystick that is like two joysticks like this example:

In order to work, I have to connect the devide index of both of my joystick with two vi Initialize Joystick.vi. Like the explanation on this web  page:  http://digital.ni.com/public.nsf/allkb/CA411647F224787B86256DD000669EFE

Here is the text: Call Initialize Joystick.vi. In this VI, use the device index input to identify the device to be read from. This is a numeric value that corresponds to the device number in the operating system. Use the corresponding Initialize VI if doing this for a different input device, i.e. Initialize Mouse.vi

I would like to know where do I find the device number in the operating system.

In my case I have found that I have to use 1 and 2. This number might change, on a different computer or if I reboot...

 

Can someone help me?

 

[Gribo]

You will have to find out the specific device ID using a unique identifier such as a serial number.