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Print42 - thermal printer software for Free42
01-11-2020, 06:08 AM (This post was last modified: 01-11-2020 06:15 AM by Thomas Okken.)
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RE: Print42 - thermal printer software for Free42
(01-11-2020 05:37 AM)tcab Wrote:  I managed to compile Free42 on the Raspberry Pi. As Thomas said, its dead easy:
sudo apt install libgtk-3-dev
git clone
cd free42/gtk

Not sure whether I should have run the build-gtk script instead?, but the resulting binary free42bin using the steps above seems to have worked OK (though I did get a few compile warnings flying past...)

The difference is that the build-gtk script checks if /usr/include/alsa/asoundlib.h exists, and adds AUDIO_ALSA=1 to the 'make' command line if it does, and it strips the binaries to make them smaller.

Regarding the warnings, those are probably related to GTK. In the later GTK 3 versions, a few APIs were deprecated, but I'm sticking with them in order to be able to continue building in Ubuntu 12.04, which has a rather old version of GTK 3 (3.4.2). I don't know if it's possible to suppress those warnings, but they are harmless at any rate.

(01-11-2020 05:37 AM)tcab Wrote:  Print42 was unable to automatically detect the location of the Free42 printout text file (Print42 tries to guess via inspecting the Free42 state file, which it thinks is in /home/pi/.local/share/Free42/state but the Free42 state file is not there - I'll have to find out where the proper location is and tweak that in the next release of Print42).

The location of the directory containing the state file is hard-coded in gtk/, line 408, and the state, print-out, and keymap file names, which include the Free42 directory name, are hard coded starting at line 421, six lines in total. Search for /.free42/ to make sure you find all occurrences.

I guess it's a bit ugly but I didn't anticipate people wanting to store those files somewhere other than $HOME/.free42 Smile

(01-11-2020 05:37 AM)tcab Wrote:  Here is a photo of my setup.


(01-09-2020 06:08 PM)Bill (Smithville NJ) Wrote:  Enjoy your new little computer.

I'm liking it so far! It has already helped me fix a bug that I hadn't been able to reproduce in my other Linux environments. Although that bug is caused by bad behavior in GTK or in the display driver, so that is a mixed blessing, I guess. Smile

I have had dropped WiFi connections a couple of times, although I'm not 100% sure the Pi is at fault there. It could also be a problem in my router (Netgear WNDR4300 running a not-very-recent version of DD-WRT) or in the MacBook Air I'm using to VNC into the Pi. I haven't noticed WiFi flakiness before, but I don't usually VNC between machines at home for long periods of time, either, so that will require some investigation.
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RE: Print42 - thermal printer software for Free42 - Thomas Okken - 01-11-2020 06:08 AM

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