On Sat, Mar 26, 2011 at 11:48:38PM -0700, iko...@earthlink.net wrote:
> Lex,
>
>
> -----Original Message-----
> >From: Lex Trotman <ele...@gmail.com>
> >Sent: Mar 26, 2011 10:47 PM
> >To: iko...@earthlink.net
> >Cc: gtk-list <gtk-list@gnome.org>
> >Subject: Re: Timer start registration breaks the gtk_main()
> >
> >>>It is not automagically passed a pointer to an instance of the object
> >>>(no "this") so it will only work if the function does not access any
> >>>instance members.
> >>
> >> Which means that every member of the class that will be used by this
> >> function
> >> should be static. But this is not good.
> >
> >Not if you want more than one instance :-)
>
> Which is not the case here. ;-)
To make that finally clear, thats why the signal functions pass a data
pointer. So to use C++ you can always either pass the object into the
static function:
class CFrame {
static gboolean ReadData(CFrame* me);
};
/* ... */
g_timeout_add_seconds(1,(GSourceFunc)CFrame::ReadData,frame);
or I would prefer to leave the C++ alone and write a small wrapper
frame_ReadData(CFrame* f) { return f->ReadData(); }
/* ... */
g_timeout_add_seconds(1,(GSourceFunc)frame_ReadData,frame);
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