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Issue 18.2 ('Listbox Drawing')
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Upgrading to 64-bit Part 2

Getting your Xojo projects to work under Catalina can be tricky

Issue: 18.2 (March/April 2020)
Author: Marc Zeedar
Author Bio: Marc taught himself programming in high school when he bought his first computer but had no money for software. He's had fun learning ever since.
Article Description: No description available.
Article Length (in bytes): 9,642
Starting Page Number: 81
Article Number: 18208
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Excerpt of article text...

In the last issue I posted about some complications I'd run into while upgrading to MacOS Catalina. I thought things had gone fairly smoothly, but after I'd written that article I ran into even more problems.

Some of the issues I encountered were with utility apps I'd written to help me automate various parts of the xDev publishing process. Since I only run those programs every other month when I publish a new issue of the magazine, I hadn't tried those projects under Catalina until I was finished with xDev 18.1.

Normally, I would have just moved some of those tasks to an older Mac running an earlier OS, but it just so happened that I simultaneously ran into a problem with Dropbox. Basically, it stopped syncing on my old Mac so I didn't have access to the latest magazine files which were on my Catalina Mac.

I ended up having to use sneakernet to move files between computers via a thumb drive, so the whole process was uncomfortable and frustrating. Since publishing the magazine is the final step in producing it, this was all last-minute and I was in a time-crunch. That's not the best time to find bugs in your workflow!

Watch Out of For 32-bit System Calls

The biggest obstacle I ran into was a particular app of mine that would not compile as 64-bit. The error message I got was ominous and strange about not being able to link files and at first I was totally confused.

...End of Excerpt. Please purchase the magazine to read the full article.