Re: [Vala] Question about signal connection

[Johan <johan wolke7 net>]

Hi Andrea,
Thanks for the fast reply.
I am still doing something wrong, I changed this:

public virtual signal void handler2 (...)

monitor.changed.connect((void) this.handler2);

and get the following:
macro "g_signal_connect" requires 4 arguments, but only 3 given

That is how the C-code looks like:  
//          g_signal_connect (monitor, "changed", (GCallback) ((void) 
g_signal_emit_by_name (self, "handler2")));
and that is how it should be:
//          g_signal_connect (instance, detailed_signal, c_handler, data)
  
any idea?

Andrea Bolognani wrote:
> On Sat, Nov 07, 2009 at 12:33:58PM +0100, Johan wrote:
>
>   
> > Hi,
> > I wanna check if a file has been changed, and then take some action.
> >     
> [...]
>   
> > public static int main (string[] args) {
> >    var file = File.new_for_path ("test.png");
> >    var monitor = file.monitor_file(FileMonitorFlags.NONE);
> >    monitor.connect("changed",handler2);
> >    return 0;
> >    }
> > }
> >     
>
> Try using
>
>         monitor.changed.connect(handler2);
>
> that should do the trick.
>
>