Free gui library software for linux

TOAD C++ GUI Library aims to make GUI development being more fun.
The TOAD C++ GUI Library is a set of C++ classes for developing X Window applications. Since there are so many other GUI libraries around (the living ones: GTK+, Qt, LessTif, Motif, fltk, Xclasses, notif, OpenLook, wxWindows, Fox and the dead ones: SUIT, Andrew Toolkit, InterViews, Fresco, XForms, ET++, Common Point and many more) you may ask yourself why one should use the TOAD C++ GUI Library? Take a look at it and you will see the answer (or not ;) ).
The TOAD C++ GUI Library is free software under the terms of the GNU Lesser General Public License 2.1 (LGPL).
Main features:
- UTF-8 text encoding
- True Color and color dithering on 4 to 8 bit display depths
- Platform independent font specification via fontconfig (for both X11 and FreeType fonts)
- Pluggable Layout Managers
- 2D vector graphic editor and PostScript(TM) output
- Minimal HTML Viewer for Online Documentation
- ISO C++ Template based Signal & Slot alike callbacks with optional closures
- Model-View Architecture
- Decoupled Menubar
- Methods and the menubar/toolbar are connected automatically over the window hierarchy.
- Decoupled Undo Management
- Undo objects and undomangers/menubars are connected automatically over the window hierarchy.
- Runtime Layout Editor
- Layouts of dialogs, menubars, formlayouts, etc. can be configured at runtime.
- ATV based Object Serialisation

T28 library is a simple library that allows interaction with a Ericsson T28 phone (and probably works with other models as well). T28 library does not have SMS support.
Main features:
- load/save phonebook
- set language
- set audio mode selection
- get battery properties (level, temperature, etc)works only on T28
- get signal level
- send keys to mobile device
- set date/time
Enhancements:
- Lots of documentation was added.
- The code was cleaned up and tested with other SE models.
- Minor bugs were fixed.

FFI::Library is a module with Perl Access to Dynamically Loaded Libraries.

SYNOPSIS

use FFI::Library;
$lib = FFI::Library->new("mylib");
$fn = $lib->function("fn", "signature");
$ret = $fn->(...);

This module provides access from Perl to functions exported from dynamically linked libraries. Functions are described by signatures, for details of which see the FFI modules documentation.

EXAMPLES

$clib_file = ($^O eq "MSWin32") ? "MSVCRT40.DLL" : "-lc";
$clib = FFI::Library->new($clib_file);
$strlen = $clib->function("strlen", "cIp");
$n = $strlen->($my_string);

Papyrus is a 2d C++ scenegraph library that utilizes the cairo library to perform drawing operations. In this respect, Papyrus Library is similar to the Gnome::Canvas library.

The initial implementation focuses on function over form, and as a result it should not be considered an optimized run-time library (but it does run reasonably well).

btnSMS Library is a C library that provides an easy interface for sending SMS messages through the Beyond The Net SMS service provider.

Messages can be sent to nearly every country in the world with many different options.

Java DIME Library project implements Direct Internet Message Encapsulation (DIME), which is a lightweight binary encapsulation format that can be used to encapsulate multiple payloads of arbitrary types and sizes into a single message.
DIME is ideal for incorporating binary attachments into any XML-based protocol. The library fully supports the latest DIME specifications.
Enhancements:
- Corrected DimeRecord.isFirst() thanks to John Russell

GPM client library (libgpm) package is an stand-alone version of GPMs client library, used by many console applications for mouse access.
Despite the (now quite aged) GPM package it contains just the client part (no server), and provides a pkgconfig descriptor (libgpm.pc) for easy importing.
Enhancements:
- This release pulls in some outstanding patches from upstream and Gentoo. It adds a Gentoo ebuild file.