This example shows how to use E-XD++ in CAD component  and Control application, including drawing cad diagram from center, MM_HIMETRIC projecting mode, black background editing and customized printing, vertexes auto-capturing, intersections, etc, as shown below:

E-XD++ is the wrold leading C++ CAD Control Source Codes, and UCanCode CAD ActiveX is the world leading CAD ActiveX Control, it is used by many CAD Application in over 40 countries. UCanCode CAD ActiveX is a CAD ActiveX control to view and edit 2D vector graphic. 
UCanCode CAD ActiveX Control can utilizes the common AutoCAD DXF file format to simultaneously load and save drawings to the database. Optimized for size and performance and could be used to display graphic on web. Open interface allows controlling UCanCode CAD ActiveX operations from hosting application and to connect business logic and events to the shapes.

UCanCode CAD ActiveX could be used to build Windows and web-based applications. Please download and evaluate UCanCode CAD ActiveX Control package. The package contains .NET C#, Visual C++, Visual Basic and Delphi samples

Full edition of UCanCode CAD ActiveX and E-XD++ ships with 100% full C++ source code!

• Shape Types
  Draw and manipulate a variety of shape types, including:
• Line
• Polyline
• Rectangle
• Arc
• Ellipse 
• Text
• Bitmap
• Round Rectangle

• Grouping
  Combine shapes to make a single shape, making organization and copying easier.
  
• Layers
  Customize the drawing layers, which can have their own unique attributes, such as default shape color and how shapes can be interacted with. Turn on/off layer visibility, prevent shapes from being sized, and more.
  
• Internet Friendly
  An installable server-side .CAB file allows the control to run in a web page over client machines!
  
  Works in Active Server Pages (ASP) as well!
  

• Transformation
  Perform transformations at the layer or shape level, including:
• Rotate
• Scale 
• Reflect
• Shear

• Power
  Adapt virtually every aspect of the control to meet your needs. Tailor the coordinate system. Respond to an assortment of events. Display grid points for snapping and aligning. Change brush and pen fill styles, patterns and colors. Customize mouse pointers.
  
  
• Flexibility
  As an ActiveX component it can be used in any development environment that supports ActiveX technology, including Visual Basic, Delphi, Visual FoxPro, and even Access.
  
  
• Shape Conversion
  Convert many different shape types into polygons and polylines for manipulation and compatibility!
   

• Rich Shape Information
  Return data from layers, groups and shapes, including:
• Custom notes
• Number of elements
• Coordinates 
• Area