Cross-Platform – Page 48 – Xojo Programming Blog

Programming the Raspberry Pi with Xojo Book

Published April 6, 2017 by Paul Lefebvre

Just in time for Xojo 2017 Release 1 and its Remote Debugger for the Raspberry Pi, we released a new book “Programming the Raspberry Pi with Xojo”. The book contains 19 chapters that introduce you to the Raspberry Pi, take you through setting it up and covers learning about Xojo programming for the Pi. Develop and build console and desktop apps for the Pi using Xojo 2019r1 or later for free (download)!

The book includes 8 step-by-step projects for creating a variety of Xojo apps for the Raspberry Pi, including: a text adventure, a music player, a game, Internet access, a web app, plus hardware projects.

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Using Raw HTML in Xojo 2017r1

Published April 5, 2017 by Greg O'Lone

One of the most frequent requests we get about the web framework is the ability to include raw HTML code when setting text. Starting in 2017, this is now possible… and perhaps ironically, it’s activated using an html-style tag.

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64-bit: Why is it so important?

64-bit: Why is it so important?

Published March 29, 2017 by Geoff Perlman

Whether Software Developer is in your job description or not, you should understand the difference between 32-bit and 64-bit. Read on for a clear answer.

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Where is 64-Bit Debugging for Windows?

Published March 28, 2017 by Geoff Perlman

Xojo 2017 Release 1 includes support for running and debugging 64-bit apps right from the IDE for macOS and Linux. Windows support is noticeably absent. Why? The answer is a bit complicated but interesting.

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Raspberry Pi Remote Debugging

Published March 28, 2017 by Paul Lefebvre

Using the Remote Debugger means that you can run Xojo apps on the Pi for testing and development without have to first purchase a Xojo license.

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Xojo.Net.HTTPSocket Speed on Windows

Published March 9, 2017 by Greg O'Lone

There’s been a bit of discussion about how the new Xojo.Net.HTTPSocket is slow for some users on Windows, which we’ve been trying to isolate to…

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Sending Notifications with Pushover

Published March 6, 2017 by Paul Lefebvre

Want a quick and easy way to send notifications to your devices (iOS, Android and web browsers) from Xojo desktop and web apps? Perhaps you want to send a notification if a purchase is made, an error occurs or a long process has finished. If so, the free Pushover web service might be what you need!

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Q&A: “What is Xojo?” Webinar

Published March 1, 2017 by Paul Lefebvre

Here are the questions people asked during our February “What is Xojo” webinar. Did you miss the webinar? It’s less than 30 minutes and you can watch it right here:

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Working with Files: FolderItem

Published February 20, 2017 by Javier Menendez

Sooner or later your app will need to work with files, maybe to save the data generated with the app itself, to open the files created with other apps or because is the main purpose of the utility you are working on. Xojo gives you the class FolderItem fully loaded with a useful bunch of properties that allow you to examine the attributes of any file; for example, the creation or modification of dates, the file path (in several formats), if the file is an alias, etc. The FolderItem class also gives you the methods to do a lot of file operations without effort.

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Fractional Scale Factors

Published February 15, 2017 by William Yu

With all the Retina/HiDPI work done in the past few years, we’ve had to add some new features along with it. One of these newer features is the Graphics ScaleX and ScaleY properties. For the purposes of Retina/HiDPI, the scale factor is used when converting user space coordinates to backing store coordinates. While mostly integral on MacOS (unless originating from some code that’s probably not ours), it can vary on Windows, and perhaps arguably mostly fractional. This is because Windows allows you to set DPI scales at 125%, 150%, etc. So when dealing with fractional scales there are a few things to watch out for:

Rounding issues
Anti-alias effect

While the framework takes care of rounding issues, for the most part, the secondary issue of anti-aliasing is up to you.

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Category: Cross-Platform