User's Manual Part 1

6 Scanner Support—Chapter
139700 Series Color Mobile Computer User’s Manual
The Automatic Data Collection (ADC) functions are accessed through
custom COM interfaces. These interfaces allow the application to receive
bar code data and configure and control the bar code reader engine. The
COM interfaces include the following functions:
S IADC (starting on page 151)
S IBarCodeReaderControl (starting on page 159)
S IS9CConfig (starting on page 172)
S IS9CConfig2 (starting on page 204)
S IS9CConfig3 (starting on page 216)
S IImage Interface (starting on page 221)
Multiple ADC COM Object Support
A 700 Series Computer may have multiple reader engines to decode differ-
ent types of ADC data. For example, a bar code reader engine decodes raw
bar code data and passes it to a bar code reader COM object. A n RFID
reader engine d ecodes raw RFID tag data and passes it to an RFID tag
reader COM object.
ADC COM interfaces are implemented as in-process COM objects. An
instance of the ADC COM object creates a logical connection to access or
control the reader engine. Specifically, the IBarCodeReadConfig or IBar-
CodeReaderControl COM objects can manage the bar code scanner con-
figuration while the ADC COM object can gather data simultaneously.
These ADC COM objects or connections can be created in a single ap-
plication or multiple applications. Up to seven instances of a COM object
can be created for a reader engine. For more information, see “How to
Create and Use the ADC COM Interfaces”below.
For data collection features, ADC COM objects also provide for read
ahead and non-read ahead data access and grid data editing.