Hi,

I have a phenomenon I am exploiting but unless I know for sure why it works must stop to use. The objective is to make sure that while the mousebuttons is being pressed no other modifier key is pressed, if anything is pressed the whole method return. Testing for 256 seems to work, why?

        NSUInteger      modifierFlags = [currentEvent modifierFlags];
        if (modifierFlags!=256) return;

Is there some documentation that supports this test, or do I have to check for all the different keys not to be pressed instead?

Thanks
Alex

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