MAME is a multi-purpose emulation framework
JUCE is an open-source cross-platform C++ application framework
NativeScript for Android using v8
Cross platform toolkit for creative coding in C++
ALFOUR Programming language. Simple, safe, power, multi-platform.
A simple C++11 network server framework
Build Cross-platform Applications
Middleware for distributed applications
PHP bindings for the cross-platform GUI library wxWidgets.
C++ Framework for slot machine games
Server side scripting language similar to ASP and PHP, but using C++.
Tools for distributed simulation
A C++ Implementation of the MIT OpenBlocks Java Code