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Re: C equivalent for: (face-attribute 'region :background (selected-fram

From: Keith David Bershatsky
Subject: Re: C equivalent for: (face-attribute 'region :background (selected-frame) 'default)
Date: Tue, 26 Sep 2017 15:06:52 -0700

Thank you, Philipp, for reading this thread and for teaching me how to call a 
Lisp function from C.

Converting those functions form Lisp to C has been something that I have wanted 
to do for quite some time, but have admittedly been intimidated because they 
both use recursion.  I have created a working draft in C that has everything (I 
think) except for `condition_case`, because I haven't learned how to do that in 
C yet.  I'll carbon copy you with the rough draft.



DATE:  [09-26-2017 11:46:05] <26 Sep 2017 18:46:05 +0000>
FROM:  Philipp Stephani <address@hidden>
> * * *
> You can easily call Lisp functions from C.
> // In syms_of_...
> DEFSYM (Qface_attribute, "face-attribyte");
> DEFSYM (Qregion, "region");
> DEFSYM (QCbackground, ":background");
> DEFSYM (Qdefault, "default");
> // Calling
> Lisp_Object o = CALLN (Ffuncall, Qface_attribute, Qregion, QCbackground, 
> Fselected_frame (), Qdefault);

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