WIA 2.0 Item Category GUIDs
Windows Image Acquisition (WIA) 2.0 items are grouped into categories that define how a IWiaItem2 is to be treated or used. For example, if the item represents a feeder, then the application should expect it to contain the required document feeder properties and operate like a document feeder. If the item represents a finished file, then a WIA 2.0 application should treat it that way, assuming that the data is static and located on the device. (The rules for each item will be defined in their individual specification documents.) Each category has a GUID type constant.
| Constant | Description |
|---|---|
|
An item that represents the automatic configuration settings for a WIA 2.0 scanner device that supports auto-configured scanning. |
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A feeder item that is a programmable data source and follows the standard rules and property sets required to support document feeders. |
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A programmable data source describing the back side data source of a duplex base feeder item. |
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A programmable data source describing the front side data source of a duplex base feeder item. |
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A film item that is a programmable data source and follows the standard rules and property sets required to support film scanning units. |
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An item that is not a programmable data source, or an item that provides data in a finished file format, or a folder item that contains finished file format items. |
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A flatbed item that is a programmable data source and follows the standard rules and property sets required to support flatbed platen scanning. |
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A folder storage item (not a programmable data source) containing other folder items or finished files or both. |
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The root item for the device. |
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows Vista [desktop apps only] |
| Minimum supported server |
Windows Server 2008 [desktop apps only] |
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