In this tutorial I will show you how to create a Number class that can tell you when its value has been actually set, along with other methods to manage how it is used while demonstrating some common object-oriented techniques and features such as operator overloading. You’ll be able to create a Number from an Integer, Double or String.
Comments closedTag: Beginner Tips
Starting with Xojo 2023r1 you’ll find a new feature in Xojo’s Debugger panel that allows you to filter the objects and variables displayed, even between different project runs! This lets you stay focused on the more important objects and variables instead of scrolling through the list of all entries.
Comments closedUsing Xojo’s URLConnection to communicate with web services is pretty straightforward. But testing the actual REST API calls can get tricky. To make it easier to test and experiment with REST API calls, Paul created a app in Xojo for doing just this. He called it RESTy in its original format back in 2015. You can download the updated project here built with Xojo 2022r4.1.
Comments closedKnowing the firing order of the Opening event in Xojo Desktop and Mobile apps, and the Shown event for Xojo Web apps, is important to using these correctly for a control’s initialization. The same can be said for Closing and Closed events. Read on for a breakdown of this order for Desktop, Web and Mobile apps developed in Xojo.
Comments closedWeb Switch controls, you like them or you hate them. The functionality of a Switch control is so similar to a checkbox that we are going to actually “hack” one of them to make a super simple web switch control.
Comments closedI was having some fun with badges, trying to recreate a design. I’ve ended up writing a few extension methods to use them on almost any WebUIControl.
Comments closedXojo has very good graphics support. You can drop images into your project and use them with several controls. You can use the various Paint events to draw your own graphics. And there’s another source of graphics you may not have considered: emojis. Emojis can be used anywhere that text can be used because they are simply Unicode characters. That means they can be used in textfields, buttons, labels, popup menus, listboxes and more.
Comments closedSometimes we need to rotate a Picture from portrait to landscape and vice versa. Since the introduction of the Graphics methods Translate and Rotate this is pretty simple to do! Continue reading and I will show you how to create a Method Extension for the Picture class that will be able to do that. This will work on Desktop and iOS projects by only copying and pasting the code, but you will need to make some changes to the example project for the Web version because of the need to convert Picture to WebPicture and back.
Comments closedRecently Xojo made the switch to using Issues for tracking bugs and feature requests. Issues is a web-based system you can find here: https://www.xojo.com/issues The…
Comments closedBeginning with Xojo 2022r1 you can use Xojo’s newPDFSignatureForm Control in your PDFDocuments. Using this allows your users to be able to sign documents using a Digital Certificate. Read on to learn how…