A cross-platform library that gives apps easy access to USB devices
Library to enable user space application programs to communicate with USB devices
The files required to run GTK+ applications on Windows
This is the GTK+ Runtime Environment Installer for Windows. It includes all of the files required to run GTK+ applications on Windows. Some support tools are also available.
.NET C# USB library for WinUSB, LibUsb-Win32, and libusb-1.0. Using the common device classes, applications work with all operating systems and drivers without modification. Lots of example code. Open source software at sourceforge.net.
A multimedia framework based on Qt and FFmpeg
QtAV is a cross-platform and high performance multimedia playback framework based on Qt and FFmpeg. Features: timeline preview, gpu decoding etc
JCurses, a java console windowing toolkit for Windows and Linux
The Java Curses Library (JCurses) is a library for developing text terminal based applications using Java programming language. It is implemented as a Windowing toolkit similar to AWT, but built upon the UNIX "curses" windowing system.
PTCPas is a free, portable framebuffer library, written in Free Pascal. It allows low-level high-speed graphics access on multiple platforms.
An open source Java library for interprocess communications.
a CLI generator and and SW library
CLIck allows you to create flat or hierarchical CLI (command line interfaces) in an extremely easy and quick way, supporting very popular features like history with command recalling, context-based auto-completion, tab-based command list, automatic command-line help, special characters, automatic structure builder, and much more. CLIck is written in ANSI C and tested on C and C++ applications on several architectures. It doesn't depend on any external library and uses only a very small subset of POSIX APIs. Despite the project name, you won't need your mouse at all!
Unified desktop and embedded Serial port API
A simple API, written in C, for accessing the Serial ports in a consistent way across Multiple desktop and embedded platforms. This has allowed programs for embedded devices to be mainly developed on the desktop, where test and debug is much easier. It can also be used to write serial port programs that are portable across different desktop platforms.