Prevent push the same button twice

Hi all! I have a button that performs a specific function .All I would like to do is prevent the user to push the same button twice. I tried already to include a 'disable button' built in function but it can't work from within.
Any ideas?

I would set the button to be disabled before you call your function, but I suppose it doesn't matter. You need to change those navigable properties on the button to NO. You cannot change the Enabled status of the button if it is the current item. Keyboard Navigable and Mouse Navigate should both be set to NO.

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