Re: [PHP-GTK] Re: Key Press php-gtk1

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. <[email protected]> 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
>> <[email protected]> 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
>>> [email protected]
>>> 509-276-2015 (PH)
>>> 509-276-2016 (FX)
>>>
>>>
>>
>>
>>
>>
>



-- 
Brian Stumm
ETS Energy Technology Systems, Inc.
http://EnergyTechnologySystems.com
[email protected]
509-276-2015 (PH)
509-276-2016 (FX)