Govinda Parida wrote:
>
> Hi, I have added a Gtk::TreeView control in a Gtk::Window and at the
> right side of the treeview, I have added a Gtk::Button. when this button
> is clicked the keypress event to the "page down" key should be generated
> to view the next page of treeview. How do I generate keypress event for
> "page down" key. please give me some clues.
>
You have to create a GdkEventKey, something like that:
void Foo:bar() // handler for signal_clicked()
{
<YOUR TREEVIEW>.grab_focus(); // essential
guint keyval = GDK_Page_Down;
GdkKeymapKey* keys;
gint n_keys;
gdk_keymap_get_entries_for_keyval(gdk_keymap_get_default(),
keyval,
&keys,
&n_keys);
// Note: GdkEvent is an union
GdkEvent* event = gdk_event_new(GDK_KEY_PRESS);
((GdkEventKey*)event)->window =
<YOUR TREEVIEW>get_window()->gobj();
((GdkEventKey*)event)->send_event = TRUE;
((GdkEventKey*)event)->time = GDK_CURRENT_TIME;
((GdkEventKey*)event)->state = GDK_KEY_PRESS_MASK;
((GdkEventKey*)event)->keyval = keyval;
((GdkEventKey*)event)->hardware_keycode = keys[0].keycode;
((GdkEventKey*)event)->group = keys[0].group;
gdk_event_put(event);
// Or, more gdkmm-ish:
// Gdk::Event(event).put();
}
Anyway it's GDK stuff, I don't know how to do that in gdkmm..
Take a look to GDK reference for more info.
Regards,
s.
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