How do I clear the control alt delete key downs when using input acquire.vi?

I am trying to monitor keystroks...  When I use the Input Acquire.vi after I log in to my system it says the Control LAlt and the Delete key are down and my code does not like that because the keyboard value is not corect...the Keypressed array always has 3 keys down....
Is there a way to clear them or send key ups some how to get rid of them.
Thanks for any help you can provide...
I am using Labview 8.0
Thanks
Eric Horwitz

There is no way that you can press multiple buttons at exactly the same time. Which keys are you trying to press? Are you talking about "PlatMods" (shift, ctrl, etc.)?
Keep a shift registers with the states of the desired buttons in a boolean array and change the respective elements to true or false, depending on key-up and key-down events. On the Key down events, check if all elements are true and act accordingly.
LabVIEW Champion . Do more with less code and in less time .

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