ImageMagick 7
A multi-platform library for OpenGL, OpenGL ES, Vulkan, etc.
blingful character graphics/TUI library. definitely not curses
PICSimLab is a realtime emulator for PIC, Arduino, STM32, ESP32, ...
Cross Platform GUI Toolkit
Real-Time ASCII Art Rendering Library
An analysis tool showing the structure of a C program
A C extension to Tk that provides functionality to modify images
a Productive Parallel Programming Language
OpenGL SFENCE Extension Module