libunique

$/!\$ WARNING
Unique is now in maintenance mode, and its usage is strongly discouraged.
Applications should use the GtkApplication class provided by GTK+ 3.0.
If you are using Unique, read the GtkApplication porting guide provided by GTK+.

About

Unique is a library for writing single instance application. If you launch a single instance application twice, the second instance will either just quit or will send a message to the running instance.

Unique makes it easy to write this kind of applications, by providing a base class, taking care of all the IPC machinery needed to send messages to a running instance, and also handling the startup notification side.

Unique aims to replace the BaconMessageConnection code that has been copied by many projects and the code using Bonobo and D-Bus.

Features

simple API, easy to subclass
custom commands
bidirectional communication channel
signal based
commodity API for sending raw data, plain text and URI lists
multiple backends (changeable at runtime)
released under LGPLv2.1
fully documented

Development

main git repository available: git clone git://git.gnome.org/unique (Browse Online)
Bugzilla: Enter a new bug for LibUnique, or Browse the bug list

Releases

Latest release: 1.1.6 (download)

Example Code

/Example - Simple example code showing how to create a single instance application using LibUnique