help about the display iterator.

help about the display iterator.

[A. Soare]

Hello,

Please, can somebody make me a brief resume ( in a few words ) about how the `display iterator' works?

I saw that the low-level functions of the display of emacs there are called from `redisplay internal', which is called mainly from `redisplay' and from `redisplay_preserve_echo_area'.

I did understand that every line is filled with glyphs in `display_line' using an interator structure.

However, I do not understand the mechanism from `redisplay_ineternal' (I have the impression that it's this function that creates the desired_matrix of glyphs) and refresh the display.

Thanks in advance.




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Re: help about the display iterator.

[Chong Yidong]

"A. Soare" <alinsoar@voila.fr> writes:

> However, I do not understand the mechanism from `redisplay_ineternal'
> (I have the impression that it's this function that creates the
> desired_matrix of glyphs) and refresh the display.

You'll have to be more specific in asking these sorts of questions, I'm
afraid.  Have you looked at the commentary at the beginning of xdisp.c?