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| Member name | Description |
|---|
| TWEI_BARCODECONFIDENCE | (TW_UINT32): This number reflects the degree of certainty the bar code engine has in the accuracy of the
information obtained from the scanned image and ranges from 0 (no confidence) to 100 (supreme confidence).
|
| TWEI_BARCODECOUNT | (TW_UINT32): Returns the number of bar codes found on the document image. |
| TWEI_BARCODEROTATION | (TW_UINT32): The bar code?s orientation on the scanned image is described in reference to a Western-style
interpretation of the image. |
| TWEI_BARCODETEXT | (TW_HANDLE): The text of a bar code found on a page. |
| TWEI_BARCODETEXTLENGTH | (TW_UINT32): The number of ASCII characters derived from the bar code. |
| TWEI_BARCODETYPE | (TW_UINT32): The type of bar code found on a page. See BarCodeType for values. |
| TWEI_BARCODEX | (TW_UINT32): The X coordinate of a bar code found on a page. |
| TWEI_BARCODEY | (TW_UINT32): The Y coordinate of a bar code found on a page. |
| TWEI_BLACKSPECKLESREMOVED | (TW_UINT32): The number of black speckles removed from the image when despeckle is enabled. |
| TWEI_BOOKNAME | (TW_STR255): This is new with TWAIN 1.9, expanding on the document/page/frame numbers described by
previous versions of TWAIN in the TW_IMAGELAYOUT (TwainImageLayout) structure. The ordering is
book/chapter/document/page(camera)/frame, and increases the detail of image addressing that a Source can provide for
an Application. |
| TWEI_CAMERA | (TW_STR255): The primary use of this value is to determine if the image is from the top or the bottom
side of a sheet of paper. |
| TWEI_CHAPTERNUMBER | (TW_UINT32): This is new with TWAIN 1.9, expanding on the document/page/frame numbers described by
previous versions of TWAIN in the TW_IMAGELAYOUT (TwainImageLayout) structure. The ordering is
book/chapter/document/page(camera)/frame, and increases the detail of image addressing that a Source can provide for
an Application. |
| TWEI_DESHADEBLACKCOUNTNEW | (TW_UINT32): The total number of black pixels in the region after deshading. |
| TWEI_DESHADEBLACKCOUNTOLD | (TW_UINT32): The total number of black pixels in the region prior to deshading. |
| TWEI_DESHADEBLACKRLMAX | (TW_UINT32): The longest black pixel run-length in the region prior to deshading. |
| TWEI_DESHADEBLACKRLMIN | (TW_UINT32): The shortest black pixel run-length in the region prior to deshading. |
| TWEI_DESHADECOUNT | (TW_UINT32): Returns the number of shaded regions found and erased in the document image. |
| TWEI_DESHADEHEIGHT | (TW_UINT32): The height coordinate of a shaded region found on a page. |
| TWEI_DESHADELEFT | (TW_UINT32): The left coordinate of a shaded region found on a page. |
| TWEI_DESHADESIZE | (TW_UINT32): The width of the dots within the shade region. |
| TWEI_DESHADETOP | (TW_UINT32): The top coordinate of a shaded region found on a page. |
| TWEI_DESHADEWIDTH | (TW_UINT32): The width coordinate of a shaded region found on a page. |
| TWEI_DESHADEWHITECOUNTNEW | (TW_UINT32): The total number of white pixels in the region after deshading. |
| TWEI_DESHADEWHITECOUNTOLD | (TW_UINT32): The total number of white pixels in the region prior to deshading. |
| TWEI_DESHADEWHITERLAVE | (TW_UINT32): The average length of all white pixel run-lengths in the region prior to deshading.
|
| TWEI_DESHADEWHITERLMAX | (TW_UINT32): The longest white pixel run-length in the region prior to deshading. |
| TWEI_DESHADEWHITERLMIN | (TW_UINT32): The shortest white pixel run-length in the region prior to deshading. |
| TWEI_DESKEWSTATUS | (TW_UINT32): Returns the status of the deskew operation. |
| TWEI_DOCUMENTNUMBER | (TW_UINT32): The ordering is book/chapter/document/page(camera)/frame, and increases the amount of image
addressing that a Source can provide for an Application. |
| TWEI_ENDORSEDTEXT | (TW_STR255): The text that was endorsed on the paper by the scanner. |
| TWEI_FILESYSTEMSOURCE | (TW_STR255): Returns a string describing the camera that captured the image data. |
| TWEI_FORMCONFIDENCE | (TW_UINT32): The confidence that the specified form was detected. |
| TWEI_FORMHORZDOCOFFSET | (TW_UINT32): An array containing the perceived horizontal offsets of the form image being matched against
a set of master forms. |
| TWEI_FORMTEMPLATEMATCH | (TW_STR255): The array of file names for the master forms matched against a form. |
| TWEI_FORMTEMPLATEPAGEMATCH | (TW_UINT32): An array containing the number of the page from a multi-page master form matched against a
form image. |
| TWEI_FORMVERTDOCOFFSET | (TW_UINT32): An array containing the perceived vertical offsets of the form image being matched against a
set of master forms. |
| TWEI_FRAME | (TW_FRAME): This is the same value returned in Frame. |
| TWEI_FRAMENUMBER | (TW_UINT32): This is the same value returned in FrameNumber. |
| TWEI_HORZLINECOUNT | (TW_UINT32): Returns the number of horizontal lines found and erased in the document image. |
| TWEI_HORZLINELENGTH | (TW_UINT32): The length of a horizontal line detected in the image. |
| TWEI_HORZLINETHICKNESS | (TW_UINT32): The thickness (height) of a horizontal line detected in the image. |
| TWEI_HORZLINEXCOORD | (TW_UINT32): The X coordinate of a horizontal line detected in the image. |
| TWEI_HORZLINEYCOORD | (TW_UINT32): The Y coordinate of a horizontal line detected in the image. |
| TWEI_ICCPROFILE | (TW_STR255): Returns the name of the ICC profile that was used to render the current image. This may be a
fully qualified path indicating the exact location of the ICC profile. |
| TWEI_IMAGEMERGED | (TW_BOOL): Indicates that the current image is the result of a merger between the front and rear images
of a duplex capture. |
| TWEI_LASTSEGMENT | (TW_BOOL): Returns true if the current segment is the last segment of a page. |
| TWEI_MAGDATA | (TW_HANDLE): This is a ?blob? of data with a byte count retrieved from the driver/ device. The
interpretation of the data comes from TWEI_MAGTYPE. |
| TWEI_MAGDATALENGTH | (TW_UINT32): This describes the length of the magnetic data. Either in bytes for ?blob? or data or
characters for string data. |
| TWEI_MAGTYPE | (TW_UINT16): This describes the kind of magnetic data. |
| TWEI_PAGENUMBER | (TW_UINT32): The ordering is book/chapter/document/page(camera)/frame, and increases the amount of image
addressing that a Source can provide for an Application. |
| TWEI_PAGESIDE | (TW_UINT16): Returns a value indicating if the image represents the front or rear of the sheet of paper.
|
| TWEI_PATCHCODE | (TW_UINT32): The patch code detected. See PatchCodeType for values. |
| TWEI_PIXELFLAVOR | (TW_UINT16): This value describes the pixel flavor of the current image. |
| TWEI_SEGMENTNUMBER | (TW_UINT32): Returns a number identifying the segment of an image. |
| TWEI_SKEWCONFIDENCE | (TW_UINT32): This number reflects the degree of certainty the deskew engine has in the accuracy of the
deskewing of the current image and ranges from 0 (no confidence) to 100 (supreme confidence). |
| TWEI_SKEWFINALANGLE | (TW_UINT32): The amount of skew in the deskewed image. |
| TWEI_SKEWORIGINALANGLE | (TW_UINT32): The amount of skew in the original image. |
| TWEI_SKEWWINDOWX1 | (TW_UINT32): This is the X image coordinate of the upper left corner of the virtual deskewed image.
|
| TWEI_SKEWWINDOWY1 | (TW_UINT32): This is the Y image coordinate of the upper left corner of the virtual deskewed image.
|
| TWEI_SKEWWINDOWX2 | (TW_UINT32): The X image coordinate of the upper right corner of the virtual deskewed image. |
| TWEI_SKEWWINDOWY2 | (TW_UINT32): The Y image coordinate of the upper right corner of the virtual deskewed image. |
| TWEI_SKEWWINDOWX3 | (TW_UINT32): This is the X image coordinate of the lower left corner of the virtual deskewed image.
|
| TWEI_SKEWWINDOWY3 | (TW_UINT32): This is the Y image coordinate of the lower left corner of the virtual deskewed image.
|
| TWEI_SKEWWINDOWX4 | (TW_UINT32): This is the X image coordinate of the lower left corner of the virtual deskewed image.
|
| TWEI_SKEWWINDOWY4 | (TW_UINT32): This is the Y image coordinate of the lower left corner of the virtual deskewed image.
|
| TWEI_SPECKLESREMOVED | (TW_UINT32): The number of speckles removed from the image when de-speckle is enabled. |
| TWEI_VERTLINECOUNT | (TW_UINT32): Returns the number of vertical lines found and erased in the document image. |
| TWEI_VERTLINELENGTH | (TW_UINT32): The length of a vertical line detected in the image. |
| TWEI_VERTLINETHICKNESS | (TW_UINT32): The thickness (width) of a vertical line detected in the image. |
| TWEI_VERTLINEXCOORD | (TW_UINT32): The X coordinate of a vertical line detected in the image. |
| TWEI_VERTLINEYCOORD | (TW_UINT32): The Y coordinate of a vertical line detected in the image. |
| TWEI_WHITESPECKLESREMOVED | (TW_UINT32): The number of white speckles removed (black speckles added) from the image when despeckle is
enabled. |