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Developers Guide

26 Datalogic™ OPOS Service Object

Developers Guide

OPOS service objects export a uniform interface; however there may be slight

differences between the same types of devices from different vendors and models.

Queries of OPOS properties reveal these differences. Below listed properties, methods,

and events are DATALOGIC device specific return values. Other DATALOGIC

service objects with different interfaces may produce slightly different results.

Developers are advised to consider all error conditions in designing an application.

Scanner Properties:

Common Properties:

AutoDisable:

Returns TRUE or FALSE depending on the previous SetProperty call.

BinaryConversion:

Returns TRUE or FALSE depending on the previous SetProperty call.

CapCompareFirmwareVersion:

Returns TRUE (also depends on the firmware and model of the scanner).

CapPowerReporting:

Returns OPOS_PR_NONE

CapStatisticsReporting:

Returns TRUE (also depends on the firmware and the model of the scanner).

CapUpdateFirmware:

Returns TRUE (also depends on the firmware and model of the scanner).

CapUpdateStatistics:

Returns FALSE.

CheckHealthText:

Internal HCheck: will return health string

External HCheck: not supported

Interactive HCheck: not supported

This property is empty before the first call to the CheckHealth method.

Claimed:

Returns TRUE after Claim method has been called. FALSE otherwise.

DATALOGIC devices are exclusive. It is recommended that a program keep the device

Claimed as long as the application is running.

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Datalogic Magellan 2200VS Podręcznik Użytkownika Strona 30