Labview VI to read data from a PS/2 keyboard or mouse

[cpitris]

Is there a Labview VI to read data directly from a PS/2 keyboard or mouse? Or alternatively a LabView VI to do the same from a PS/2 device connected to a NI DIO board?

I would like to use the output of an optical mouse encoder as an input to a LabView program. I can do it via the PS/2 port (I am using a USB mouse, so the PS/2 port is empty) or via a NI DIO card.

Any thoughts, hints?

Thank you very much

Costas Pitris

[EdDickens]

At least since LabVIEW 8.0 there are VI's in the palette to grab data from the mouse and keyboard. They shouldn't care if they are USB or PS/2. This might go back to 7.1 or 7.0. I don't have them installed right now so I can't check.

Look in the "Connectivity>Input Device Control" palette.

Ed

[mikeporter]

Is this a second keyboard/mouse distinct from the one that the PC itself uses?

Mike...

[cpitris]

Yes! Indeed, we are talking about a second mouse keybord and not the one that windows uses as to move the cursor or input text.

Put another way, what I am looking for a is a set of vi's to read and write bytes to a PS/2 device.

Thanks

Costas

[Craig_D]

For pre-built functionality within LabVIEW, there are VIs which use DirectX calls to directly read input devices (mouse, keyboard, joystick) on the Connectivity->Input Device Control palette.  Another possible option would be to use a joystick as the input. 

Let me know if you have any more questions.

Regards,

Craig D

Applications Engineer

National Instruments