TinyCAD is a program for drawing electrical circuit diagrams commonly known as schematic drawings. It supports standard and custom symbol libraries. It supports PCB layout programs with several netlist formats and can also produce SPICE simulation netlists. It is also often used to draw one-line diagrams, block diagrams, and presentation drawings.
Libraries, documentation, examples & drivers for Eagle Technology South Africa's Data Acquisition products. These include ISA, PCI, PCI Express, USB, Serial & Ethernet. Supported languages will be C/C++, JAVA, Perl, Python.
The comprehensive C++ library MGEN for IC layout and connectivity comes with the X11/Motif full custom layout editor PARIS and the powerful waveform viewer/processor MANIAC. Industry proven, it is the basis for layout generators, placers, routers etc.
YAPI (Y-chart Application Programmers' Interface aka Yet Another Programmers' Interface) is a C++ library for writing (Kahn) Process Networks.