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WIA_IPS_MULTI_FEED

The WIA_IPS_MULTI_FEED property is used to configure the action to be performed by the WIA minidriver when a multiple feed condition is detected at the device. The WIA minidriver creates and maintains this property.

Property Type: VT_I4

Valid Values: WIA_PROP_LIST

Access Rights: Read/Write

Remarks

The following table describes the valid values for the WIA_IPS_MULTI_FEED property.

ValueDefinition

WIA_MULTI_FEED_DETECT_DISABLED

Multi-feed detection is disabled. This is the required default value if the property is supported.

WIA_MULTI_FEED_DETECT_STOP_ERROR

The device detects multi-feed, stops scanning, sets the MULTIPLE_FEED bit for WIA_DPS_DOCUMENT_HANDLING_STATUS, and returns WIA_ERROR_MULTI_FEED to IWiaMiniDrv::drvAcquireItemData.

WIA_MULTI_FEED_DETECT_STOP_SUCCESS

The device detects multi-feed, stops scanning, sets the MULTIPLE_FEED bit for WIA_DPS_DOCUMENT_HANDLING_STATUS, and IWiaMiniDrv::drvAcquireItemData returns and does not fail because of the multi-feed.

WIA_MULTI_FEED_DETECT_CONTINUE

The device detects multi-feed, beeps or produces an audible or visible signal at the hardware device (recommended but not required), and continues scanning.

 

This property is optional, and is valid only for the Feeder data source item (represented in the WIA_IPA_ITEM_CATEGORY property as WIA_CATEGORY_FEEDER).

When the WIA minidriver sets the MULTIPLE_FEED bit for the WIA_DPS_DOCUMENT_HANDLING_STATUS property, the minidriver should clear this bit (flag) as soon as the minidriver detects that the feeder is unloaded, is reloaded, or a new scan job begins.

Requirements

Header

Wiadef.h (include Wiadef.h)

 

 

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