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Re: Status of modifier keys (shift/ctrl/alt)

by steve-72 :: Rate this Message:

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Gautier de Montmollin wrote:

> So, my question: how to get a fresh status of these modifier keys,
> independently of the other keys or the mouse ?

No - you can't.  That's actually an operating system restriction
under some OS's - so to be portable, GLUT (and therefore freeglut)
doesn't let you read the modifier keys outside of the mouse and
keyboard callbacks.

The reason is that these are MODIFIER keys - they MODIFY the function
of other keys or of the mouse - so it doesn't make sense to read them
other than when other keys/mouse are doing something.

> Or, is there a new callback function (say, KeyboardModifierFunc) to add to
> the wish list ?

Nope - not going to happen because it's not possible for such functions
to be portable.

Sorry!

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 « Return to Thread: Status of modifier keys (shift/ctrl/alt)