i push a button

[michael bsc]

i push a button and i want that some process wil start in labview . it should be like i press keyboard and interupt sent.
now it is implemented using for loop that alwayes check if the value of the button is one

[AnalogKid2DigitalMan]

If LV7, use event structure

[spaceman_spif]

This sounds like it would be better handled by a case structure and wiring the push button into that.

[altenbach]

This calls for an event structure. Have a look at the online help and browse the examples (for example "New event handler.vi") for details.

In your case you would define a "this VI" event for "key down", then determine from the event terminals which key was actually pressed and act accordingly.

Good luck!

[Dennis_Knutson]

If this is a button on the front panel, then everyone's comment about an event structure is correct. If this is some physical button someplace, could you provide more details?

[michael bsc]

yes for example two buttones one push i take signal from channel one display it and the red light on
second buttone pushed i take signal from second channel green light on

[michael bsc]

this button connected to the two pins device pci dio 6503

[AnalogKid2DigitalMan]

If not time critical (~100msec), a while loop with a delay in it should suffice