In the docs we need to create Cairo context using fltk APIs then use Cairo commands.

However there is also cairo_cc. can I accept Cairo context created outside fltk and assign to local window using cairo_cc?

On Saturday, November 7, 2020 at 4:10:56 AM UTC+5:30 Ian MacArthur wrote:

> On 6 Nov 2020, at 12:47, anmol.mishra wrote:
>
> Looking at Fl::cairo_cc(cairo_t *), can I draw into a cairo context with 2D vector primitives, and then pass it to fltk ? Will the drawn cairo operations be recognized by fltk ?

The easiest thing might be to create a Fl_Cairo_Window as shown in cairo_test.cxx and then render the scene just using Cairo primitives.


That said, although Cairo does a nice job, I found it to be quite slow, so I ended up rendering the window content in GL instead 

Cairo has a gl backend as well