![]() ![]() Read the current settings for the scanner lamp and turn the lamp on, if needed by using the WIA_IPS_LAMP property (if it is supported). This setting will indicate either positive image or negative image (that is, a photographic negative) scanning support.Ĭhoose the positive or negative light source by setting the WIA_IPS_FILM_SCAN_MODE property. Read the valid values for WIA_IPS_FILM_SCAN_MODE to check for the film scanning settings. The programming and scanning behaviors of the film item are almost identical to those of the flatbed item.Īn application will typically perform the following operations when it programs the scanner's film item, but not necessarily in this order:Įnumerate top-level WIA items, searching for WIA items that are marked with the WiaItemTypeProgrammableDataSource item flag and the WIA_IPA_ITEM_CATEGORY setting of WIA_CATEGORY_FILM. For example, flatbed scanner items are used for scanning from the flatbed, and feeder Items are used for scanning from the document feeder. The application then uses the top level item as the scanning source. ![]() A WIA application enumerates the top-level items in the scanner item tree to determine the supported features of the scanner. ![]()
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