Datalogic QuickScan L QD2300 Manuel d'utilisateur télécharger pdf (Page 44)

Developers Guide

40

Datalogic™ OPOS Service Objects

Scale Methods

Common Methods

Open:

Returns

OPOS_SUCCESS

OPOS_E_NOSERVICE

OPOS_E_ILLEGAL

Close:

Returns OPOS_SUCCESS.

ClaimDevice:

Returns

OPOS_SUCCESS

OPOS_E_NOSERVICE

OPOS_E_ILLEGAL

OPOS_E_CLAIMED

This call will activate the communication with the device. DATALOGIC

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

Claimed as long as the application is running.

CheckHealth:

OPOS_CH_INTERNAL is not supported.

OPOS_CH_EXTERNAL is not supported.

OPOS_CH_INTERACTIVE is not supported.

Returns

OPOS_SUCCESS

OPOS_E_NOTCLAIMED

OPOS_E_DISABLED

OPOS_E_ILLEGAL

CheckHealthText property will hold the text result of this method call.

ClearInput:

Returns

OPOS_SUCCESS

OPOS_E_DISABLED

OPOS_E_NOTCLAIMED

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