Graphics Device Interface Concepts

This section introduces some important GDI concepts, such as the graphics context (GC), pictures (which in this context are objects that can be drawn to a graphics context and can be stored and restored), and twips and zooming.

• Drawing and Graphics Contexts
  
• Picture Concepts
  This section introduces pictures. In this context a picture is an object that can be drawn to a graphics context and can be stored and restored.
• Twips and Zooming
  This section introduces twips and zooming.