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   Roberto :emacs:​ (robjperez@fosstodon.org)'s status on Monday, 18-Nov-2024 19:02:13 JST Roberto :emacs:​

   Sometimes I have difficulties trying to find some information whithin #emacs for specific functions.

   i.e. When I do ~(set-frame-parameter nil 'alpha '(95 . 95))~

   How can I get more info about the available ~frame-parameter~?

   Why are two values in that alist (95 . 95)

   I tried with C-h f set-frame-parameter but could not get any valid lead.

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     Alfred M. Szmidt (amszmidt@mastodon.social)'s status on Monday, 18-Nov-2024 19:02:12 JST Alfred M. Szmidt

     in reply to

     • hajovonta

     @robjperez This is all documented in the manual for #GNU Emacs: https://www.gnu.org/software/emacs/manual/html_node/elisp/Window-Frame-Parameters.html

     Or specifically, if you are interested in ALPHA:

     https://www.gnu.org/software/emacs/manual/html_node/elisp/Font-and-Color-Parameters.html#index-opacity_002c-frame

     @hajovonta

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     hajovonta (hajovonta@mastodon.online)'s status on Monday, 18-Nov-2024 19:02:13 JST hajovonta

     in reply to

     @robjperez You can try:
     M-x describe-function <function name>
     on any given function, to get help on that. In this case (see picture), click on the "see modify-frame-parameters' link for more info, then it states that you can query the alist for the frame by invoking M-: (frame-parameters)

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     Roberto :emacs:​ (robjperez@fosstodon.org)'s status on Monday, 18-Nov-2024 19:02:13 JST Roberto :emacs:​

     in reply to

     • hajovonta

     @hajovonta Thanks for the respose!

     Yep, I did that. But even after executing ~(frame-parameters)~ I don't really get to know which are the available frame parameters. Or even why 'alpha is an alist of two values (95 . 95)

     It would be nice to have in the set-frame-parameter function documentation something like a list of parameters, or at least some common parameters like `alpha` and the expected values for them