Re: Help writing a patch to allow transparent backgrounds?

["Clément Pit--Claudel" <clement.pit@gmail.com>]

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On 02/10/2016 01:35 PM, Eli Zaretskii wrote:
>> From: Clément Pit--Claudel <clement.pit@gmail.com>
>> 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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