http://www.openframeworks.cc/

Openframeworks is a c++ library designed to assist the creative process by providing a simple and intuitive framework for experimentation.<

The library is designed to work as a general purpose glue, and wraps together several commonly used libraries under a tidy interface: openGL for graphics, rtAudio for audio input and output, freeType for fonts,freeImage for image input and output, quicktime for video playing and sequence grabbing.