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Category: Learning

Var, Dim or both?

API 2.0 added Var as an alias for Dim. Var is more recognized by coders from other languages and that’s great. Easily readable code is the goal, so I use both.

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Starting Graphics with GraphicsPath

In Xojo there is a new class, GraphicsPath, that you can use to create graphics as a mathematical description of shapes and lines; ranging from simple lines to Bèzier curves, arcs, rectangles, there are many advantages to using these! For example, as a class on its own, it doesn’t even needs a graphical context (Graphics) in order to describe the shapes you want to use, and the mathematical representation means more control and precision. Simply put, you only need to join the points!

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14 Days: A Beginner’s Guide to Coding

It’s always a good time to learn something new! And maybe you have some free time on your hands now? We know our screen time is up to 23 hours and 47 minutes a day so let’s put that inevitable extra screen time to good use and learn a new skill – programming. If you are going to add programming to your skillset, it’s logical to begin with a language that makes it simple to learn the basics of programming. Let me show you a learning path you can follow over 14 days that is aimed at giving you a confident and capable to start to programming. After 14 days, you will have the basic skills to begin creating your own apps. And using Xojo, with the check of a box, you can build those apps for Mac, Windows and Linux and after that, use your new skills to develop web, iOS and Raspberry Pi apps!

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The Powerful World of Delegates

Delegates are one of those advanced features you can find in the Xojo programming language, and it’s a really powerful one! Once you discover and comprehend all the flexibility you can get from Delegates, I’m pretty sure you’ll start to start using them! Through the use of Delegates, you can dynamically change the code to execute.

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Doing Progress Right

The ProgressBar control and loops go hand-in-hand. If there is a ProgressBar on a Window, you can bet a For loop is close by. But there are right and wrong ways to do this, and most of the time I see progress code, I see the wrong way.

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Default Values Tip

Often when debugging an application, you’ll need to enter the same data in the same fields over & over. There is a temptation to set the value of the field to the test data. The downside of this is that you need to remove all those defaults before deploying your application.

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Non-Visible Characters in Strings

As a follow-up to our post on Escaping Quotes in Strings, someone asked how they might deal with something such as the tab character in a String. Unlike with a quote, dealing with a non-visual character (such as a tab or end-of-line) in a String is trickier because you can’t actually type those characters. So instead you have to refer to the character another way.

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