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GTK# : Introduction

Tutorial by:      Date: 2016-04-19 01:28:26

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This is GTK# tutorial for the C# programming language. This tutorial is suitable for beginners and more advanced programmers.

GTK# is a wrapper over the GTK+ for the C# programming language. The library facilitates building graphical GNOME applications using Mono or any other compliant CLR. Applications built using Gtk# will run on many platforms including Linux, Microsoft Windows and Mac OS X. GTK# is part of the Mono initiative.

This is an introductory GTK# programming tutorial. The tutorial is targeted for the C# programming language. It has been created and tested on Linux. The GTK# programming tutorial is suited for novice and intermediate programmers.

GTK+

GTK+ is a library for creating graphical user interfaces. The library is created in C programming language. The GTK+ library is also called the GIMP Toolkit. Originally, the library was created while developing the GIMP image manipulation program. Since then, the GTK+ became one of the most popular toolkits under Linux and BSD Unix. Today, most of the GUI software in the open source world is created in Qt or in GTK+. The GTK+ is an object oriented application programming interface. The object oriented system is created with the Glib object system, which is a base for the GTK+ library. The GObject also enables to create language bindings for various other programming languages. Language bindings exist for C++, Python, Perl, Java, C# and other programming languages.

The GTK+ itself depends on the following libraries.

  • Glib
  • Pango
  • ATK
  • GDK
  • GdkPixbuf
  • Cairo

The Glib is a general purpose utility library. It provides various data types, string utilities, enables error reporting, message logging, working with threads and other useful programming features. The Pango is a library which enables internationalisation. The ATK is the accessibility toolkit. This toolkit provides tools which help physically challenged people work with computers. The GDK is a wrapper around the low-level drawing and windowing functions provided by the underlying graphics system. On Linux, GDK lies between the X Server and the GTK+ library. Recently, much of its functionality have been delegated to the Cairo library. The GdkPixbuf library is a toolkit for image loading and pixel buffer manipulation. Cairo is a library for creating 2D vector graphics. It has been included in GTK+ since version 2.8.

Gnome and XFce desktop environments have been created using the GTK+ library. SWT and wxWidgets are well known programming frameworks that use GTK+. Prominent software applications that use GTK+ include Firefox or Inkscape.

GTK#

GTK# is a wrapper over the GTK+ for the C# programming language. The library facilitates building graphical GNOME applications using Mono or any other compliant CLR. Gtk# is an event-driven system like any other modern windowing library where every widget in an application has handler methods that get called when particular events happen. Applications built using Gtk# will run on many platforms including Linux, Microsoft, Windows and Mac OS X. GTK# is part of the Mono initiative. There are basically two widget toolkits in Mono: Winforms and the GTK#. The GTK# is considered to be native for the Linux/Unix operating system.

Compiling GTK# applications

We use the gmcs compiler to compile our GTK# applications.

$ gmcs -pkg:gtk-sharp-2.0 -r:/usr/lib/mono/2.0/Mono.Cairo.dll application.cs

The above line compiles a GTK# application that also uses the Cairo library.

Sources

In this part of the GTK# tutorial, we have introduced the GTK# library.

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GTK#

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