Developing Service Objects Using Base Classes

2/27/2008

The UPOS Specification version 1.12 defines 36 UPOS device types. POS for .NET provides Base class for nine of those. This section builds on the basics covered in the Service Object Samples: Getting Started and provides additional information specific to each device type.

In This Section

• Scanner Implementation
  Provides additional details about developing a ScannerDrawer Service Object.

• CashDrawer Implementation
  Provides additional details about developing a CashDrawer Service Object.

• LineDisplay Implementation
  Provides additional details about developing a LineDisplay Service Object.

• PinPad Implementation
  Provides additional details about developing a PinPad Service Object.

• PosKeyboard Implementation
  Provides additional details about developing a PosKeyboard Service Object.

• Using Impl Methods for Synchronous or Asynchronous Output
  Describes how these special helper methods allow for a single implementation of an output method that supports both synchronous and asynchronous operations.

Related Sections

• Service Object Samples: Getting Started
  Provides a step-by-step guide to creating a functional, multithreaded Service Object.

• Developing a Custom Service Object
  Discusses the procedures, issues, and conventions for developing a custom Service Object.