Delay in changing the state of LEDs

[Nagraj B]

Hi

        I am using 6 LEDs in my application. I am changing the state of LED using SetCtrlVal() function.

But for 3 LED's the change happens after some delay(around 5sec delay). I don't know how to solve

this issue. Please any me on this.

Thanks and Regards

NB

[Wolfgang · Accepted solution]

Hi,

without further details one can only speculate: do you happen to set your LED state in a callback? In this case it might help calling ProcessDrawEvents() after your SetCtrlVal() function.

[Nagraj B]

Hi

       Thanks for the reply. ProcessDrawEvents() is changing the status immediately in GUI.

Regards

NB

[nickb]

Also - just FYI - this is a known issue that has been resolved in CVI 2010.  Calling SetCtrlVal should immediately update and redraw the state of the LED.

NickB

National Instruments