Getting the metadata from an image file on macOS is quite easy using Declares. Continue reading and I’ll show you how!
Author: Javier Menendez
In programming, iterators are the mechanisms that allow us to run through all the items of a collection without needing to know in advance how many of them compose that collection. To do this, we can use the commands For Each… Next in Xojo. What are the main differences when comparing For Each… Next with the conventional For… Next? See how the For Each… Next loop iterates every item associated with the object. It’s a more concise, stylish and Object-Oriented (OOP) way of doing things when compared with the classic For… Next loop.
Comments closedSomeone asked in the Xojo Forum if it was possible to create thumbnails (Xojo Picture objects) from a page of a PDF in order to display it in an iOS app. Sure it is! Continue reading to learn how in this step-by-step tutorial.
Comments closedYou are navigating Xojo web 2.0 apps and your use the browser’s back button to return to the previous page of the app. But rather than taking you to the previous page, you get a message that the app lost connection to the sever. This is even more common on a mobile device where we tend to use the back gesture to return to the previous page.
Comments closedXojo 2021r2 brings more enhancements, new features and a bunch of bug fixes to the PDFDocument class. Among these, probably the most important is the arrival of PDFDocument for iOS. But you’ll also find new features like adding annotations and links to your PDFs, new PDF viewer options and the ability to jump to a specific page in a PDF.
Comments closedI was recently asked how to set the background color in a WebDialog. There are a few approaches you can take to accomplish this. The simplest one is to add a rectangle as a layer of the WebDialog and set a color to it. In this tutorial you’ll learn how to set the background color by accessing the style property of the object in the DOM model and setting it there.
This tutorial provides a step-by-step guide to deploying Xojo web apps on a Linux server. You’ll find deployment of more complex web apps can follow the same basic principles. If all of this seems too complex, Xojo Cloud is the easy, powerful and secure way to deploy web apps.
Comments closedXojo’s Library offers a good amount of UI controls ready to use: buttons, input text controls, lists, popup menus, progress bars, panels, labels, a control to play movies, etc. However, sometimes we need to display exactly the same combination of controls, using the same layout, in several windows of an app. What’s the best approach in these cases?
Comments closedThe popular PDF support and features introduced last year in Xojo 2020r1, have gained several improvements and bug fixes in today’s release. Now, with Xojo 2021r1, Xojo’s PDF support include a set of new Graphics features that will continue to be expanded more in future releases.
Comments closedThe Xojo ComboBox desktop control is a powerful one. It combines the capabilities of a TextField with the PopupMenu. That means that you can choose from the available options in the associated menu or you can type another value in the ComboBox text field. What about getting the ComboBox to do things not included in the class?
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