CtrlCAD is a 2D source code cad for C++.It is the starting point to build your own customized drawing applications. The library is furnished in source code formats for c++ More then 1000 functions,well documented with a lot of examples. CtrlCAD features: - Supported formats: AutoCAD DWG/ DXF format. - Pages, Layers, Linetypes, Blocks, TextStyles, PointStyles, Multi-line Styles (parallel lines), Selection Sets. - Graphics objects: Points, Lines, Sub-classed Polylines, Circles, Arcs, Ellipses, Rectangles, Text, Block Insertions, Raster Images, Hatches. - Vectorization of raster images - A unique ID for each graphical object facilitates external database referencing. - Access to all the properties of any object, either programmatically or via dialogs. - Zoom capabilities allowing you to view the entire drawing or any desired part of it. - Mouse Wheel supports real-time Zoom and Pan. - Print Preview. - Command window to insert command by keywords. - Advanced user interface - Layers and Blocks management - Model and Layout space - Uses Autocad style print (.CTB and .STB files) - Boolean operations between polygons - Edit operations: Copy, Move, Rotate, Scale, Mirror, Array,Explode, Erase, Join. Single objects can be edited by moving their control points (grips). - Event-driven mechanism that allows for application control of the user's actions with a drawing. - Supports Windows TTF fonts and AutoCAD SHP fonts. - Supports AutoCAD hatch patterns (PAT) and linetypes (LIN). - Unlimited Undo-Redo - Easy localization to any language.