key pressed
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Hi,
How can I check whether a certain key is pressed (for example, a modifier like Shift)? Cheers, Doru -- www.tudorgirba.com "If you interrupt the barber while he is cutting your hair, you will end up with a messy haircut." _______________________________________________ Pharo-project mailing list [hidden email] http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project |
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2009/9/27 Tudor Girba <[hidden email]>:
> Hi, > > How can I check whether a certain key is pressed (for example, a > modifier like Shift)? > Depends on context. In Morphic, just take an event (mouse event or keyboard event) and send #shiftPressed, or #controlKeyPressed, or whatever. Another way is to ask the Sensor for same things, but i wouldn't do that, because to my opinion this is the wrong way, because Sensor is low-level object, which should be hidden from the eyes of developer, and normally, if you need to use it, it means that you doing something wrong :) > Cheers, > Doru > > > -- > www.tudorgirba.com > > "If you interrupt the barber while he is cutting your hair, you will > end up with a messy haircut." > > > _______________________________________________ > Pharo-project mailing list > [hidden email] > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > -- Best regards, Igor Stasenko AKA sig. _______________________________________________ Pharo-project mailing list [hidden email] http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project |
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In reply to this post by Tudor Girba
Hi Tudor,
You can check the implementation of FixedIPluggableTextMorph>>keyStroke: and HandMorph STicky protocol category in my recent STicky project, http://www.squeaksource.com/STicky.html Cheers, Hernán 2009/9/26 Tudor Girba <[hidden email]>: > Hi, > > How can I check whether a certain key is pressed (for example, a > modifier like Shift)? > > Cheers, > Doru > > > -- > www.tudorgirba.com > > "If you interrupt the barber while he is cutting your hair, you will > end up with a messy haircut." > > > _______________________________________________ > Pharo-project mailing list > [hidden email] > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > _______________________________________________ Pharo-project mailing list [hidden email] http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project |
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In reply to this post by Igor Stasenko
+1 to Sig's comments. Another problem with looking at the current state vs. state from an event is that the current state is just that, and often differs (covertly and frustratingly) from the user's intentions. Such problems often arise with mouse cursor positions.
Bill -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of Igor Stasenko Sent: Saturday, September 26, 2009 6:25 PM To: [hidden email] Subject: Re: [Pharo-project] key pressed 2009/9/27 Tudor Girba <[hidden email]>: > Hi, > > How can I check whether a certain key is pressed (for example, a > modifier like Shift)? > Depends on context. In Morphic, just take an event (mouse event or keyboard event) and send #shiftPressed, or #controlKeyPressed, or whatever. Another way is to ask the Sensor for same things, but i wouldn't do that, because to my opinion this is the wrong way, because Sensor is low-level object, which should be hidden from the eyes of developer, and normally, if you need to use it, it means that you doing something wrong :) > Cheers, > Doru > > > -- > www.tudorgirba.com > > "If you interrupt the barber while he is cutting your hair, you will > end up with a messy haircut." > > > _______________________________________________ > Pharo-project mailing list > [hidden email] > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > -- Best regards, Igor Stasenko AKA sig. _______________________________________________ Pharo-project mailing list [hidden email] http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project _______________________________________________ Pharo-project mailing list [hidden email] http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project |
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Thanks for the replies.
Actually, I am in the code of selectedItem: of a list and I would like to add to the current selection if Shift is pressed. The problem is that I do not have access there at the event. Cheers, Doru On 27 Sep 2009, at 03:14, Schwab,Wilhelm K wrote: > +1 to Sig's comments. Another problem with looking at the current > state vs. state from an event is that the current state is just > that, and often differs (covertly and frustratingly) from the user's > intentions. Such problems often arise with mouse cursor positions. > > Bill > > > -----Original Message----- > From: [hidden email] [mailto:[hidden email] > ] On Behalf Of Igor Stasenko > Sent: Saturday, September 26, 2009 6:25 PM > To: [hidden email] > Subject: Re: [Pharo-project] key pressed > > 2009/9/27 Tudor Girba <[hidden email]>: >> Hi, >> >> How can I check whether a certain key is pressed (for example, a >> modifier like Shift)? >> > Depends on context. In Morphic, just take an event (mouse event or > keyboard event) and send #shiftPressed, or #controlKeyPressed, or > whatever. > > Another way is to ask the Sensor for same things, but i wouldn't do > that, because to my opinion this is the wrong way, because Sensor is > low-level object, which should be hidden from the eyes of developer, > and normally, if you need to use it, it means that you doing > something wrong :) > > >> Cheers, >> Doru >> >> >> -- >> www.tudorgirba.com >> >> "If you interrupt the barber while he is cutting your hair, you will >> end up with a messy haircut." >> >> >> _______________________________________________ >> Pharo-project mailing list >> [hidden email] >> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >> > > > > -- > Best regards, > Igor Stasenko AKA sig. > > _______________________________________________ > Pharo-project mailing list > [hidden email] > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > > _______________________________________________ > Pharo-project mailing list > [hidden email] > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project -- www.tudorgirba.com "One cannot do more than one can do." _______________________________________________ Pharo-project mailing list [hidden email] http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project |
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