Athugasemd
Aðgangur að þessari síðu krefst heimildar. Þú getur prófað aðskrá þig inn eða breyta skráasöfnum.
Aðgangur að þessari síðu krefst heimildar. Þú getur prófað að breyta skráasöfnum.
The WIA_IPS_AUTO_CROP property is used to enable automatic detection and cropping by the device of the scan region. 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_AUTO_CROP property.
Value | Definition |
---|---|
WIA_AUTO_CROP_DISABLED | Auto-crop is disabled. This is the required default value if the property is supported. |
WIA_AUTO_CROP_SINGLE | Auto-crop is enabled. One scan region is detected and cropped on each document page. |
WIA_AUTO_CROP_MULTI | Auto-crop is enabled. One or multiple scan regions are detected and cropped on each document page. Each cropped scan region is transferred to the WIA application client as one single-page file or as a new page in a multi-page file. |
This property is valid and optional for the Feeder (WIA_CATEGORY_FEEDER) item, where it can be implemented with or without the WIA_PAGE_AUTO value for the WIA_IPS_PAGE_SIZE property. This property is also valid (and optional) for the Flatbed (WIA_CATEGORY_FLATBED) and Film (WIA_CATEGORY_FILM) items, but only if segmentation isn't supported by the WIA mini-driver for the WIA_CATEGORY_FLATBED and WIA_CATEGORY_FILM input sources. If WIA_IPS_SEGMENTATION is supported, then WIA_IPS_AUTO_CROP is invalid and can't be supported at the same time.
When the property is supported, WIA_AUTO_CROP_DISABLED and at least one of the other two possible values (WIA_AUTO_CROP_SINGLE and/or WIA_AUTO_CROP_MULTI) are required, with WIA_AUTO_CROP_DISABLED being the required default.
Requirements
Header: wiadef.h (include Wiadef.h)