Jean, I’ve found your response, and I’ve updated my list subscription to my new email.
My reason for wanting this is that I need to generate several types of output based on some other settings in my input file. For example, I need PDF output for print, and PNG output in a couple different resolutions for projection on a screen. This is for use in a church. One thought I had was to spawn another LilyPond so that I could specify command line options based on the settings in my input file. I haven’t been able to get this to work so far, for reasons I don’t understand. I tried this using (system "lilypond -fpng file.ly"). I also tried Guile’s system*, but got an unbind error. I’m using 2.22.2. Thank you for your response, and apologies for missing it initially. John From: Jean Abou Samra <j...@abou-samra.fr> Sent: Saturday, February 25, 2023 4:34 PM To: jschlom...@astound.net Cc: lilypond-user@gnu.org Subject: Re: PNG file output Hi, Please consider subscribing to the list (https://lists.gnu.org/mailman/listinfo/lilypond-user), else your messages are approved manually and you might miss a reply if the person merely replies to the list without Ccing you. Thanks. Le 25 févr. 2023 à 18:33, jschlom...@astound.net <mailto:jschlom...@astound.net> a écrit : Is there a way to get png output using some internal setting? #(ly: set-option 'resolution 300) works fine, but only if I use the -fpng command line option. I need to set this conditionally in the .ly file. Any way to do this? Should I be looking at guile? I'm afraid this can't be done without dirty tricks. Output formats are really tied to the command line. However, I think this might be an XY question. Could you elaborate on why you want to do this?
