From: Alex Fenton <aff28@...>
Date: 2009-11-10T22:10:11+09:00
Subject: Re: wxRuby + rcairo ... are driving me mad.

Philipp Hofmann wrote:
> How is it possible to use Wx::GraphicsContext#get_native_context with
> rcairo? Let me quote the wxRuby documentation from
> 
>   http://wxruby.rubyforge.org/doc/graphicscontext.html#GraphicsContext_getnativecontext
> 
>   "Returns the native context (CGContextRef for Core Graphics, Graphics
>   pointer for GDIPlus and cairo_t pointer for cairo)." [1]
> 
> Is there a way to cast the data the cairo_t pointer points to into a
> Cairo::Context? Everything I tried resulted in an 'called on
> terminated object' error. Well, at least the reasonable attempts.

I suggest you post this on the wxRuby list.

I don't know of anyone who's tried to do this. If it doesn't work at the 
moment, it should be pretty easy to get a Integer corresponding to a C 
pointer out of the wrapper. But we'd need to know a bit more about what 
the Cairo wrapping expects.

a