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List:       php-gtk-general
Subject:    Re: [PHP-GTK] Re: Key Press php-gtk1
From:       Brian Stumm <bstumm () energytechnologysystems ! com>
Date:       2010-02-19 14:53:15
Message-ID: 88d60f151002190653i7073f8f4pf5a5b36189bb399d () mail ! gmail ! com
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Jake, I already thought of that, unfortunately if one shift is already
depressed nothing happens when you press the other. At least in
php-gtk version 1.

On Fri, Feb 19, 2010 at 6:48 AM, Jake <jake.cobb@gmail.com> wrote:
> If one Shift key is already down and you press the other, does this trigger
> another key-press event?  If so, can't you detect both are down by
> incrementing/decrementing a counter when you get a key press/release for
> Shift and checking for the counter being 2?
>
> -Jake
>
> On Mon, Feb 15, 2010 at 5:44 PM, Brian Stumm
> <bstumm@energytechnologysystems.com> wrote:
>>
>> Thanks to Madeleine for pointing out my error, I can now detect key
>> release as well as key press. But I now have a new problem and looking
>> for any ideas anyone might have.
>>
>> I must choose two keys on the keyboard that cannot be pressed using
>> only one hand. Most keys fall into the "auto repeat" category where
>> while holding the key down for long periods it will repeat the "press"
>> action. I'm sure you've all experienced the annoying beeping from a
>> computer with a key that is stuck down for whatever reason. I decided
>> I could use the two shift keys as my two handed solution, however both
>> shift keys use the value 65505 and I cannot determine that both shift
>> keys are depressed. Using a combination of ctrl and shift is out
>> because you can press them both using only one hand.
>>
>> Is there a way to treat the two shift or ctrl keys separate? Is there
>> a way to disable auto-repeat for the keyboard (temporarily) via
>> php-gtk? Any other ideas?
>>
>> Thanks.
>>
>> On Mon, Feb 15, 2010 at 12:50 PM, Madeleine D. <chezmmd@gmail.com> wrote:
>> >
>> > Brian -
>> >
>> > You need to add 'add-events', after the realize, as in:
>> >
>> > $alert_window->add_events(GDK_KEY_PRESS_MASK|GDK_KEY_RELEASE_MASK);
>> >
>> >
>> > The key press mask is probably not needed, but I always add it anyway.
>> >
>> >
>> > Madeleine D.
>> >
>> >
>> >
>> >
>> >
>> > Brian Stumm wrote:
>> >>
>> >> Not sure if messages are going through or not but...
>> >>
>> >> I've discovered the key-press-event and key-release-event and while
>> >> key-press is working for me, the key-release does not seem to work.
>> >>
>> >> Here is a snippet from my code:
>> >>
>> >> $alert_window = &new GtkWindow(GTK_WINDOW_DIALOG);
>> >> $alert_window->connect('delete-event', 'hide_window');
>> >> $alert_window->set_border_width(0);
>> >> $alert_window->set_policy(0, 0, 0);
>> >> $alert_window->set_title('Notice!');
>> >> $alert_window->set_name('AlertWindow');
>> >> $alert_window->set_usize(400,430);
>> >> $alert_window->realize();
>> >> $alert_window->set_position(GTK_WIN_POS_CENTER);
>> >> $alert_window->connect('key-press-event', 'onKeyPress');
>> >> $alert_window->connect('key-release-event', 'onKeyRelease');
>> >> -----------------8<--SNIP
>> >>
>> >> /***** ONKEYPRESS/RELEASE() *****/
>> >> function onKeyPress($widget, $event) {
>> >>  global $righthand, $lefthand;
>> >>  echo "Pressed: " . $event->keyval;
>> >>  return true;
>> >> }
>> >> function onKeyRelease($widget, $event) {
>> >>  global $righthand, $lefthand;
>> >>  echo "Released: " . $event->keyval;
>> >>  return true;
>> >> }
>> >>
>> >> Key Press echo's Pressed and a value (numeric) but the key release
>> >> does nothing. Am I doing something wrong?
>> >>
>> >>
>> >> On Mon, Feb 15, 2010 at 6:01 AM, Brian Stumm
>> >> <bstumm@energytechnologysystems.com> wrote:
>> >>
>> >>>
>> >>> First, I am still using php-gtk1. I'd like to make the move to v2 but
>> >>> do not have the luxury right now.
>> >>>
>> >>> I am looking to detect when keys are pressed (and held down) in
>> >>> php-gtk version 1. This is for a "two hand, no tie down" safety
>> >>> feature on our machines. Access to our machines is made possible by
>> >>> lifting the top of the machine using air cylinders. The air cylinders
>> >>> are controlled via an electric valve. To lower the top I need to
>> >>> require the user to press two keys on opposite sides of the keyboard
>> >>> and keep them depressed until the top closes completely. If they
>> >>> release before the top closes completely the top should go back up.
>> >>>
>> >>> Is there a way I can monitor key press and key release in version 1 of
>> >>> php-gtk?
>> >>>
>> >>> --
>> >>> Brian Stumm
>> >>> ETS Energy Technology Systems, Inc.
>> >>> http://EnergyTechnologySystems.com
>> >>> bstumm@EnergyTechnologySystems.com
>> >>> 509-276-2015 (PH)
>> >>> 509-276-2016 (FX)
>> >>>
>> >>>
>> >>
>> >>
>> >>
>> >>
>> >
>>
>>
>>
>> --
>> Brian Stumm
>> ETS Energy Technology Systems, Inc.
>> http://EnergyTechnologySystems.com
>> bstumm@EnergyTechnologySystems.com
>> 509-276-2015 (PH)
>> 509-276-2016 (FX)
>>
>> --
>> PHP-GTK General Mailing List (http://gtk.php.net/)
>> To unsubscribe, visit: http://www.php.net/unsub.php
>>
>
>



-- 
Brian Stumm
ETS Energy Technology Systems, Inc.
http://EnergyTechnologySystems.com
bstumm@EnergyTechnologySystems.com
509-276-2015 (PH)
509-276-2016 (FX)

-- 
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