[cairo] Limitation of recording surface

Mon Feb 9 23:42:57 PST 2015

On Monday 09 February 2015 23:07:18 Petr Kobalíček wrote:
> Isn't CLEAR just like SRC having all components zero?
> 
> Best regards
> Petr Kobalicek

Yes, but including the alpha-channel. Thus, it isn't black but complete 
transparent.

I used it to make specific areas transparent which can't be accomplished with 
e.g. OVER.

Bernhard
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