![]() Net MAUI: Multi-platform App UI from Microsoft Avalonia: a WPF/UWP-inspired XAML-based UI framework.GtkSharp: a C# wrapper for the Gtk3 library.Let’s try to build a desktop app with a cross-platform GUI. Net Core doesn’t provide a cross-platform windowed GUI. Net CoreĬross-platform development is great, so is. If (fileChooser.Run () = (int)ResponseType.Cross-Platform Desktop GUI Application using. protected void OnOpen (object sender, EventArgs e)įileChooserDialog fileChooser = new FileChooserDialog ("Choose an Image to View", this, FileChooserAction.Open, "Cancel", ResponseType.Cancel, "Open", ResponseType.Accept) With the Image widget still selected choose the properties tab on the right side, and re-name the widget to displayImage.Īdd the following code to the OnOpen Signal handler in MainWindow.cs. Let’s go back to our MainWindow User Interface file, and add an Image Widget by dragging and dropping it into the container. If you were to build and run the application, and choose the Exit menu item, your application should now exit. protected void OnExit (object sender, EventArgs e) Let’s first handle the OnExit action, by quitting the application. Under the Activated signal we’ll create OnOpen, OnAbout, and OnExit for the Open, About, and Exit menu items respectively.ĭouble click the MainWindow.cs file, and you’ll notice that Signal Event Handlers have been added. Next, open the properties tab on the far right side, and choose Signals at the top. To wire out Signal Handlers for each of our menu items, first select a menu item. Next, we’ll add three ‘actions’ under the File menu item. We’ll follow the instructions and enter file. You’ll notice that the menu bar snaps to the top of the window, and instructs you to ‘click to create menu’. Our application needs a menu bar, so lets choose the Menu Bar widget. We really only need two, so right click over one of the panels, and choose delete. If you try and drag a non-container widget into the designer without having a container widget, Xamarin studio gives you the following error message.įor this project, we’ll use a VBox container. In reality, they are all widgets, some are just container widgets, while others are non-container widgets. If you look on the right side under toolbox, you will notice two main categories, widgets, and containers. Double clicking this file opens up the designer. If you look under the User Interface folder you’ll notice a file called MainWindow. We’ll name our project and solution ImageViewer.Īfter you press OK, you’ll notice that Xamarin Studio has created quite a few things for you. From the list of project types, choose Gtk# 2.0 Project. From the new Solution dialog, in the left column select C#. Let’s dive right in and create our first Gtk# program, a simple image viewer.įirst, open Xamarin Studio, choose File -> New Solution. To learn more about GTK# check out the documentation . Even Xamarin Studio and Monodevelop were created using GDK#! Which means, that although unlikely, theoretically Xamarin Studio could be maintained by Xamarin Studio, which is some kind of crazy inception. Gtk# allows for the creation of awesome user interfaces with the C# language using Mono or other CLR language. Cairo – This library is used for creating two-dimensional vector graphics.GdkPixBuf – This library handles loading images and pixel buffer manipulation.GDK – This library is a wrapper around the low level drawing and windowing functions.ATK – Accessibility Toolkit to aid physically challenged to work with computers.Pango – This library allows for internationalization.It’s also home to error reporting, message logging, and threading. Glib – A general purpose library consisting of various data types, string utilities.Gtk+, AKA GIMP Toolkit, is a library that can be used to create user interfaces. This post is going to cover one of the less discussed project types in Xamarin Studio, the Gtk# project.
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