Datalogic QuickScan L QD2300 Manual de usuario Pagina 38

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Developers Guide
34
Datalogic™ OPOS Service Objects
Scanner Methods
Common Methods
Open:
Returns
OPOS_SUCCESS
OPOS_E_NOSERVICE
OPOS_E_NOEXIST
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 supported.
OPOS_CH_EXTERNAL is not supported.
OPOS_CH_INTERACTIVE is not supported.
Returns
OPOS_SUCCESS
CheckHealthText
property will hold the text result of this method call.
ClearInput:
Returns
OPOS_SUCCESS
OPOS_E_DISABLED
OPOS_E_NOTCLAIMED
DirectIO:
Returns
OPOS_SUCCESS
OPOS_E_NOTCLAIMED
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