button-press-event
This signal is emitted when a mouse button has been pressed down.
Useful event properties are:
- x, y - The x and y widget coordinates at which the cursor is.
- button - Mouse button (1 - left, 2 - middle, 3 - right)
- state - Bitmask of other keys that were pressed (e.g. Ctrl or Shift) - GdkModifierType
- type - Event type, e.g. normal press, double click or so - GdkEventType.
Example 154. Using the key-press-event signal
<?php
$wnd = new GtkWindow();
$wnd->connect_simple('destroy', array('Gtk', 'main_quit'));
//we want to receive mouse button press events
$wnd->set_events(Gdk::BUTTON_PRESS_MASK);
$wnd->connect('button-press-event', 'onButtonPress');
//here we handle the mouse button press events
function onButtonPress($widget, $event) {
$widget->set_title($event->button . ' - ' . $event->x . ':' . $event->y);
}
$wnd->show();
Gtk::main();
?> |
Callback function