[cairo] How to draw a Rect with red border

[Boris Popov]

yinglcs2 at yahoo.com wrote:
> How can I draw a Rect with red border?
>
> I know the function cairo_rectangle() to draw a Rect,
> but how can I set the color to "red"?
>
>  cairo_rectangle(aSurf, 20, 20, 40, 40);
>   

That would be,

cairo_rectangle(cr, 20, 20, 40, 40);
cairo_set_source_rgb (cr, 1, 0, 0);
cairo_stroke (cr);

I would also suggest you take a look at the snippets page, which I found 
to be very useful when learning the basics of Cairo a little while ago,

http://cairographics.org/samples/snippets.html

Cheers!

-Boris

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