emit keypress event into event loop

[vano <ivan kuten promwad com>]

Hello,

Anybody has idea how to emit in GTK (2.11.6) some keypress event into
main event loop?

I have mouse clickable button and want to send to my text_view a
keyboard press.

I'm doing this way:

in main code:

g_signal_connect(G_OBJECT(my_button), "button-press-event",
         G_CALLBACK(press_callback), G_OBJECT(textview));

in callback:

static void press_callback( GtkWidget *widget,
                            GdkEventButton *e, GtkWidget *text_view )
{
        g_print("button press\n");

        GdkEvent *event;

        event = gdk_event_new(GDK_KEY_PRESS);

        event->key.keyval = GDK_K;
        event->key.window = gtk_text_view_get_window(text_view,
GTK_TEXT_WINDOW_TEXT);
        event->key.time = 0;

        gtk_main_do_event(&event);
}

I get nothing in my text_view view but have the following debug output:
GLib-GObject-WARNING **: invalid uninstantiatable type `<invalid>' in
cast to `GdkWindow'
gtktextview.c:4303: focus_out_event
> Lines Validated (gtktextview.c:3492)
 visible rect: 0,0 226 x 107
 invalidated rect: 0,0 226 x 28
> Exposed (gtktextview.c:4447)

or if trying another approach with sending event directly to text_view
widget:

static void press_callback( GtkWidget *widget,
                            GdkEventButton *e, GtkWidget *text_view )
{
        g_print("button press\n");

        GdkEvent *event;

        event = gdk_event_new(GDK_KEY_PRESS);

        event->key.keyval = GDK_K;
        event->key.window = gtk_text_view_get_window(text_view,
GTK_TEXT_WINDOW_TEXT);
        event->key.time = 0;

        g_signal_emit_by_name(GTK_TEXT_VIEW(text_view), "key_press_event", event);

}

the program seems go in correct way, but I get segmentation fault:

> Invalidate, onscreen_validated = 1 now FALSE (gtktextview.c:3442)
gtktextview.c:3454: adding first validate idle 13
gtktextview.c:3461: adding incremental validate idle 14
gtktextview.c:1812
Invalidating due to layout invalidate signal
> Invalidate, onscreen_validated = 0 now FALSE (gtktextview.c:3442)
Invalidating due to layout invalidate signal
> Invalidate, onscreen_validated = 0 now FALSE (gtktextview.c:3442)
TEXTVIEW: K -- callback of "changed" signal for TextView
gtktextview.c:7131: scrolling onscreen
gtktextview.c:1812
gtktextview.c:3410
removing first validate in gtktextview.c:3367
> Updating layout width (gtktextview.c:1965)
Segmentation fault

Please suggest correct mailing list if I'm posting on the wrong one.

Thanks!

Best regards,
Ivan