PHP-GTK Manual - key-press-event

Webhosting and cheap domain names registration service


Prev	key-press-event	Next

key-press-event

This is an event signal, fired when the connected widget picks up a GDK_KEY_PRESS event. Key press events are generated by any of the keys on a keyboard being pressed. You can distinguish between the key values in the callback using an if or switch statement:

<?php
function on_click($widget, $event, $data)
{
    if($event->keyval==GDK_KEY_Return) {
        /*do something appropriate for the return key being pressed*/
    } elseif($event->keyval > GDK_KEY__a) {
        /*we can reach the character strings, too*/
        echo $event->string."\n";
    }
}
?>

Yes, we have hard-coded keysyms. The full list of PHP-GTK keysymbol constants is in the source code in the file php-gtk/ext/gtk+/php_gdk.c.

Callback function

bool callback(GtkWidget widget, GdkEvent key_press);

Prev	Home	Next
expose-event	Up	key-release-event

Networksites:

$8.95 domain registration : cheap domain registration

Quotes:

You are . . . the lens in the beam. You can only receive, give, and possess the light as the lens does.The more faithfully you listen to the voices within you, the better you will hear what is sounding outside.Never measure the height of a mountain until you reach the top. Then you will see how low it was.Never look down to test the ground before taking your next step; only he who keeps his eye fixed on the far horizon will find the right road.Life only demands from you the strength you possess. Only one feat is possible--not to have run away.It is more noble to give yourself completely to one individual than to labor diligently for the salvation of the masses.

Disclaimer: This documentation is provided only for the benefits of our webhosting customers.
For authoritative source of the documentation, please refer to http://gtk.php.net/docs.php