[Vala] timers with callbacks

[Sam Liddicott <sam liddicott com>]

I've grep'd all my vapi files and can't find any timer classes that 
provide callbacks, can anyone help?
I've seen the example at: http://live.gnome.org/Vala/Tutorial
but O'm just running Gtk.main, not making a loop, so I don't have 
anything to time.attach to.



I've also modified the vala glade demo to make connect_signals more 
reasonable:

       if (!module.symbol ("glade_phone_ui_" + handler_name, out sym) 
&& !module.symbol (handler_name, out sym)) {

Of course "glade_phone_ui" is my namespace hierachy, but is there a 
magical preprocessor token to pull out the current namespace hierachy 
prefix to save me hard wiring it? That would be a reasonable change to 
the glade example.


Finally, (cos I'm an old Delphi nut) I want to extend the 
connect_signals stuff to connect more than signals, but also widget 
names, so I'll be pulling back all widget names, and then looking for 
exported symbols in a similar manner; however I guess I should be doing 
some RTTI stuff to make sure the symbol I'm about to populate is of the 
right types. Any clues?? I'll do it typeless for now.


I'm annoyed that this C syntax isn't supported:
       if (this.module = Module.open (null, ModuleFlags.BIND_LAZY)) {

However this doesn't work either:
       if ((this.module = Module.open (null, 
ModuleFlags.BIND_LAZY))!=NULL) {

I've not managed to find the equivalent for NULL checking yet. (This was 
to save re-opening module for every attached signal).

Sam