On 09/12/2007, Nguyen Thai Ngoc Duy <[EMAIL PROTECTED]> wrote:
> Hi,
>
> I tried this code:
>
> class MyComp : Gtk.Window {
> construct {
> var b = new Gtk.Button.with_label("hellp");
> b.clicked += on_clicked;
> add(b);
> }
>
> void on_clicked() {
> GLib.stdout.printf("Help!\n");
> }
>
> static int main(string[] p) {
> Gtk.init(out p);
> MyComp w = new MyComp();
> w.show_all();
> Gtk.main();
> return 0;
> }
> }
>
> The generated code for signal "clicked" was
>
> static void my_comp_on_clicked (MyComp* self) {
> g_return_if_fail (IS_MY_COMP (self));
> fprintf (stdout, "Help!\n");
> }
>
> It should have been *_clicked(GtkWidget*, MyComp*). Was it code
> generation broken or did I write something wrong? Vala revision was
> 760.
>
> Thanks
> --
> Duy
A signal handler function should be declared with a first argument of
the type of the object emitting the signal (GtkButton). Then vala
will pass the object receiving it (MyComp) automatically as the
user_data argument.
void on_clicked(Gtk.Button btn) { ... }
Should work fine. Alternatively the equivalent lambda:
b.clicked += btn => { ... };
--
Phil Housley
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