On Tue, Nov 13, 2018 at 3:02 PM Tony Houghton <h...@realh.co.uk> wrote:
> On Tue, 13 Nov 2018 at 18:23, <philip.chime...@gmail.com> wrote: > >> On Tue, Nov 13, 2018 at 11:35 AM Tony Houghton <h...@realh.co.uk> wrote: >> >>> >>> Yes, it does the job, but it seems a shame that I can't take advantage >>> of all the facilities that should be available by using GObject with an OO >>> language. I suppose a good way to proceed for now would be to compromise by >>> deriving Typescript classes from GObject classes but assume that I can't >>> override native virtual functions this way and use signals instead. >>> >> >> You can override the virtual functions, but they all start with vfunc_. >> You can find them in the documentation, for example Gtk.Widget's virtual >> functions start here: >> http://devdocs.baznga.org/gtk30~3.22.12/gtk.widget#vfunc-adjust_baseline_allocation >> > > Yes, I saw the use of the vfunc_ prefix, but I figured that was something > that registerClass sets up and overrides won't work properly without it. Or > will vfuncs work and I only need to use registerClass to be able to add > signals and properties etc? > You always need to use registerClass to inherit from a GObject class, or it simply won't work. (Python gets around this requirement by having metaclasses, which register the GObject class when you create the class object. JS doesn't have these.)
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