Re: Simluating Keypresses

[Allin Cottrell <cottrell wfu edu>]

On Wed, 8 Dec 2004, andrew gatt wrote:

> I'm very new to Gtk so please forgive me if this is an obvious question,
> i've done a lot of digging and can't find an answer. What i've got is a Gtk
> front end with other control threads running which process commands from
> other ports. I need to simulate key presses on the window from these other
> threads. For example a "move left" command on the serial port is received by
> my serial routine and sent to the Gtk main thread, that moves the focus
> left, one button, on the main window.
>
> What i've tried so far is...

Here is what I use (not original):

static void manufacture_keystroke (GtkWidget *widget, guint uval)
{
    GdkKeymapKey *keys;
    gint n_keys;

    if (gdk_keymap_get_entries_for_keyval(NULL, uval, &keys, &n_keys)) {
        guint16 hardware_keycode;
        GdkEvent *event;

        hardware_keycode = keys[0].keycode;
        g_free(keys);

        event = gdk_event_new(GDK_KEY_PRESS);
        event->key.window = g_object_ref(widget->window);
        event->key.hardware_keycode = hardware_keycode;

        event->key.keyval = gdk_unicode_to_keyval(uval);
        event->key.length = 1; /* ? */

        event->key.send_event = FALSE; /* ? */
        event->key.time = GDK_CURRENT_TIME;

        gtk_main_do_event(event);
        gdk_event_free(event);
    }
}

Allin Cottrell