Re: Help writing a patch to allow transparent backgrounds?

[Clément Pit--Claudel]

On 02/10/2016 01:35 PM, Eli Zaretskii wrote:
>> From: Clément Pit--Claudel <address@hidden>
>> Date: Tue, 9 Feb 2016 10:22:38 -0500
>>
>> The only way to get transparency at the moment seems to be with the 'alpha 
>> frame parameter. Unfortunately this makes the whole frame transparent, 
>> instead of just the background. I'd like to make Emacs only draw text to the 
>> screen, without painting a background. I'm on Linux with Gtk3.
>>
>> I expect that this would require changing the way the background is painted, 
>> and changing the way faces are drawn to not add a solid background.
> 
> I can try helping you with doing that in a non-Cairo build.  I'm not
> familiar enough with the way Cairo drawing works (and I'm not sure we
> have here anyone who does).

Thanks!
 
> Let me know if doing that in a build without Cairo is useful enough
> for you to work on that.

Yes, I think so :) Am I correct in thinking that the default build does not use 
Cairo? That is, the final result would work with the default build on Linux, 
but not with ./configure --with-cairo?

Clément.

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