- 1. Direct Current. Electrical current that flows in a single direction only, cf AC.
- 2. Domain Controller.
- 3. Device Context. In the Windows GDI library,
a device context is a handle used for drawing onto a device. Each device
context is created for a specific device, for example a display, a printer,
plotter, bitmap etc. Conceptually a DC can be thought of as a handle to a
drawing surface, operations that work on the DC should therefore have no
need to know the type of surface (be it a printer, bitmap etc).
Each Device Context will in turn have a number of other objects associated with it, such as pens, brushes and fonts.