# Part I. Introduction

GtkSourceView is a GNOME library that extends GtkTextView, the standard GTK+ widget for multiline text editing. GtkSourceView adds support for syntax highlighting, undo/redo, file loading and saving, search and replace, a completion system, printing, displaying line numbers, and other features typical of a source code editor.

See the GtkSourceView website.

GtkSourceView 4 depends on GTK+ 3.

## pkg-config name

For GtkSourceView 4, the pkg-config name is: `gtksourceview-4`

To compile a program that uses GtkSourceView 4, you can for example use the following command:

`$ gcc hello.c `pkg-config --cflags --libs gtksourceview-4` -o hello`