Capturing keyboard strokes on a windows NT machine

[Svendsen]

Hi,

I am writing a program which shall run on a windows NT machine. My problem is that the Input Device Control VI's in LabVIEW 7.0, by suprise, don't support Windows NT. I have to capture the keybord strokes while the LabVIEW program is out of fokus. The key combination I have to "catch" i Ctrl+Shift+K.

I hope anyone can help me.

[davemc]

Did you try using the event structure: - Key Down?
(see attached code)

[Svendsen]

Yes I have tryed using the event structure, but this only works if the VI is in fokus. My VI is hidden, and therefor it will not work.

[mohadjer]

Hello

This is expected behavior. The input VIs require DirectX version 8.0 to function properly. Windows NT only supports up to DirectX version 3.x, thus it does not support the input VIs.

Regards
Mohadjer

[tst]

Try using the GetKeyState or GetKeyboardState functions.
In XP they can be found in User32.dll. I'm not sure about NT.
Try looking for them on the Microsoft Developer Network (MSDN).