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Xojo Programming Blog Posts

#JustCode Challenge Week 4 – Mini Golf ScoreKeeper

#JustCode Challenge Week 4 – Mini Golf ScoreKeeper

Published July 13, 2018 by Paul Lefebvre

Sometimes the idea for a great little app comes down to solving a silly little problem.

Last month, the family went mini-golfing for my son’s birthday. It was a lovely course called Pirate’s Cove Adventure Golf right next to the ocean. But they didn’t have scoring stands and we had to use a tiny pencil on a little cardboard scorecard to keep score. So this week’s app is a simple iOS app track of mini-golf scores!

The iOS app has two screens. The main screen has a giant Table that lists all the 18 holes. You tab on the detail button for a row (it’s the “I” icon) to go to the scoring screen.

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The status of 32-bit and 64-bit macOS apps

The status of 32-bit and 64-bit macOS apps

Published July 11, 2018 by Paul Lefebvre

In the Mac world, 32-bit apps have been disappearing more and more as time goes on. This year already we’ve seen significant steps toward 64-bit.

In January 2018 Apple stopped accepting 32-bit app submissions to the Mac App Store.

In February 2018, starting with macOS 10.13.4, Apple added a warning that displays the first time you launch a 32-bit app.

In June 2018 Apple stopped accepting updates to 32-bit apps in the Mac App Store. All new apps and app updates must now be 64-bit.

At WWDC 2018 Apple announced that macOS 10.14 will be the final version that support 32-bit apps. Although they did not announce a release date, based on the timing from the past few years macOS 10.14 will probably be released around the end of September 2018.

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Software Distribution Simplified with GuancheMOS

Published June 26, 2018 by Javier Menendez

In an ideal world there is a person responsible for every step in software development, from coding, UI design, distribution, documentation, marketing and support. All of this can seem really overwhelming for independent developers and small businesses. But if you break it down and take it one piece at a time, it’s manageable by even the smallest team of one. Right now, let’s look at software distribution.

For software, distribution usually means generating and validating unique serial numbers for each of your products and users. Serial numbers (or license keys) help you manage your users, unlock a free trial or demo version for full use and, of course, minimize illegal use of your apps.

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#JustCode Challenge Week 1 – Color Picker

#JustCode Challenge Week 1 – Color Picker

Published June 22, 2018 by Paul Lefebvre

It’s the first week of the Just Code challenge so I’m starting with something pretty simple. This app lets you choose a color using the system color picker and then shows you the color values in hexadecimal (useful for programming, HTML and CSS), RGB (red, green, blue), HSV (hue, saturation,value) and CMY (cyan, magenta, yellow).

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Create a Preferences Class with Operator_Lookup

Published June 20, 2018 by Javier Menendez

Xojo is an Object Oriented Programming Language and, among other things, that means that it supports Methods Overloading. We have seen in other posts that some of these overloaded methods can be Class Constructors, but, there are others things you can do. For example, we can overload the operators. These are the methods in charge of adding two instances of the same class, subtracting, multiplying or dividing them. But we also have at our disposal another operator we can overload: Lookup. What advantages does this give us and how it does it work? Let’s explore it while building a Preferences class we can use in any of our projects.

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Jump Right In! Just Code Challenge

Jump Right In! Just Code Challenge

Published June 18, 2018 by Paul Lefebvre

I’m often asked by kids and adults how they can start coding and learn to make apps? You could start with the usual books or videos.

But maybe you want to jump right in. When I started programming that is exactly how I learned. I tried things to see what worked and what didn’t work. I also looked at and modified other programs I found.

You can learn to code if you just code.

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Net Neutrality is dead, long live Net Neutrality!

Net Neutrality is dead, long live Net Neutrality!

Published June 13, 2018 by Geoff Perlman

Earlier this week, the FCC’s repeal of Net Neutrality officially when into effect. What does this mean? It means that the rules that were put into place to prevent ISPs from abusing their power are gone. You might be wondering what power they actually have? I’ve already written about this before but in summary, most people only have a single option for internet service. That means that for them, there is no competition. Their ISP has them by the proverbial short hairs and there’s no other place most of us can go for Internet access. Net Neutrality at least prevented those ISPs from really abusing their monopoly. That’s now gone.

As the Electronic Frontier Foundation said, you’re not going to see your Internet service suddenly slow to a crawl or block specific sites. It will be more of a steady decline. It’s like having terminal cancer. It won’t kill you tomorrow but it will eventually.

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Which DLLs can I move and where?

Published June 3, 2018 by Norman Palardy

After seeing this conversation on the forums, I thought it would be helpful to run through why you can move some of your app’s DLLs but you cannot move others.

On Windows, the Visual Studio C Runtime DLLs can be in one of two locations on systems that do not already have them installed. All versions of Windows prior to Windows 10 would need these installed.

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