Re: [Vala] Properly wrapping callbacks

[Frederik <scumm_fredo gmx net>]

Michael 'Mickey' Lauer wrote:
> Hi,
>
> I'm working on my first binding for a non-gobject library -- please see 
> gsm0710_p.h.
>
> My current vapi is also attached. I'm struggling with setting the callback 
> pointers now. How should the callbacks in my .vala object be defined so that 
> I can set them via e.g. 
>
> <callback>
>
> var ctx = new Context();
> ctx.at_command = <callback>
>
> Cheers,
>
> Mickey.

You should make your delegate non-static, since an instance gets passed.
In your case the instance gets passed as first parameter and not as last
parameter, so you must add [CCode [instance_pos = 0)]. And 'char*'
translates to 'string' in Vala.

  [CCode [instance_pos = 0)]
  public delegate int at_command_t (string command);


Regards,

Frederik