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title: Dynamic Web TWAIN SDK API Reference - Enumerations
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description: Dynamic Web TWAIN SDK Documentation API Reference Enumerations Page
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# Enumerations

## Dynamsoft.DWT.EnumDWT_PixelType

| Label         | Value |
| :------------ | :---- |
| TWPT_BW       | 0     |
| TWPT_GRAY     | 1     |
| TWPT_RGB      | 2     |
| TWPT_PALLETE  | 3     |
| TWPT_CMY      | 4     |
| TWPT_CMYK     | 5     |
| TWPT_YUV      | 6     |
| TWPT_YUVK     | 7     |
| TWPT_CIEXYZ   | 8     |
| TWPT_LAB      | 9     |
| TWPT_SRGB     | 10    |
| TWPT_SCRGB    | 11    |
| TWPT_INFRARED | 16    |

## Dynamsoft.DWT.EnumDWT_BorderStyle

| Label           | Value |
| :-------------- | :---- |
| TWBS_NONE       | 0     |
| TWBS_SINGLEFLAT | 1     |
| TWBS_SINGLE3D   | 2     |

## Dynamsoft.DWT.EnumDWT_MessageType

| Label           | Value |
| :-------------- | :---- |
| TWQC_GET        | 1     |
| TWQC_SET        | 2     |
| TWQC_GETDEFAULT | 4     |
| TWQC_GETCURRENT | 8     |
| TWQC_RESET      | 16    |

## Dynamsoft.DWT.EnumDWT_Cap

| Label                                | Value |
| :----------------------------------- | :---- |
| CAP_NONE                             | 0     |
| CAP_XFERCOUNT                        | 1     |
| ICAP_COMPRESSION                     | 256   |
| ICAP_PIXELTYPE                       | 257   |
| ICAP_UNITS                           | 258   |
| ICAP_XFERMECH                        | 259   |
| CAP_AUTHOR                           | 4096  |
| CAP_CAPTION                          | 4097  |
| CAP_FEEDERENABLED                    | 4098  |
| CAP_FEEDERLOADED                     | 4099  |
| CAP_TIMEDATE                         | 4100  |
| CAP_SUPPORTEDCAPS                    | 4101  |
| CAP_EXTENDEDCAPS                     | 4102  |
| CAP_AUTOFEED                         | 4103  |
| CAP_CLEARPAGE                        | 4104  |
| CAP_FEEDPAGE                         | 4105  |
| CAP_REWINDPAGE                       | 4106  |
| CAP_INDICATORS                       | 4107  |
| CAP_SUPPORTEDCAPSEXT                 | 4108  |
| CAP_PAPERDETECTABLE                  | 4109  |
| CAP_UICONTROLLABLE                   | 4110  |
| CAP_DEVICEONLINE                     | 4111  |
| CAP_AUTOSCAN                         | 4112  |
| CAP_THUMBNAILSENABLED                | 4113  |
| CAP_DUPLEX                           | 4114  |
| CAP_DUPLEXENABLED                    | 4115  |
| CAP_ENABLEDSUIONLY                   | 4116  |
| CAP_CUSTOMDSDATA                     | 4117  |
| CAP_ENDORSER                         | 4118  |
| CAP_ALARMS                           | 4120  |
| CAP_ALARMVOLUME                      | 4121  |
| CAP_AUTOMATICCAPTURE                 | 4122  |
| CAP_TIMEBEFOREFIRSTCAPTURE           | 4123  |
| CAP_TIMEBETWEENCAPTURES              | 4124  |
| CAP_CLEARBUFFERS                     | 4125  |
| CAP_MAXBATCHBUFFERS                  | 4126  |
| CAP_DEVICETIMEDATE                   | 4127  |
| CAP_POWERSUPPLY                      | 4128  |
| CAP_CAMERAPREVIEWUI                  | 4129  |
| CAP_SERIALNUMBER                     | 4132  |
| CAP_PRINTER                          | 4134  |
| CAP_PRINTERENABLED                   | 4135  |
| CAP_PRINTERINDEX                     | 4136  |
| CAP_PRINTERMODE                      | 4137  |
| CAP_PRINTERSTRING                    | 4138  |
| CAP_PRINTERSUFFIX                    | 4139  |
| CAP_LANGUAGE                         | 4140  |
| CAP_FEEDERALIGNMENT                  | 4141  |
| CAP_FEEDERORDER                      | 4142  |
| CAP_REACQUIREALLOWED                 | 4144  |
| CAP_BATTERYMINUTES                   | 4146  |
| CAP_BATTERYPERCENTAGE                | 4147  |
| CAP_CAMERASIDE                       | 4148  |
| CAP_SEGMENTED                        | 4149  |
| CAP_CAMERAENABLED                    | 4150  |
| CAP_CAMERAORDER                      | 4151  |
| CAP_MICRENABLED                      | 4152  |
| CAP_FEEDERPREP                       | 4153  |
| CAP_FEEDERPOCKET                     | 4154  |
| CAP_AUTOMATICSENSEMEDIUM             | 4155  |
| CAP_CUSTOMINTERFACEGUID              | 4156  |
| ICAP_AUTOBRIGHT                      | 4352  |
| ICAP_BRIGHTNESS                      | 4353  |
| ICAP_CONTRAST                        | 4355  |
| ICAP_CUSTHALFTONE                    | 4356  |
| ICAP_EXPOSURETIME                    | 4357  |
| ICAP_FILTER                          | 4358  |
| ICAP_FLASHUSED                       | 4359  |
| ICAP_GAMMA                           | 4360  |
| ICAP_HALFTONES                       | 4361  |
| ICAP_HIGHLIGHT                       | 4362  |
| ICAP_IMAGEFILEFORMAT                 | 4364  |
| ICAP_LAMPSTATE                       | 4365  |
| ICAP_LIGHTSOURCE                     | 4366  |
| ICAP_ORIENTATION                     | 4368  |
| ICAP_PHYSICALWIDTH                   | 4369  |
| ICAP_PHYSICALHEIGHT                  | 4370  |
| ICAP_SHADOW                          | 4371  |
| ICAP_FRAMES                          | 4372  |
| ICAP_XNATIVERESOLUTION               | 4374  |
| ICAP_YNATIVERESOLUTION               | 4375  |
| ICAP_XRESOLUTION                     | 4376  |
| ICAP_YRESOLUTION                     | 4377  |
| ICAP_MAXFRAMES                       | 4378  |
| ICAP_TILES                           | 4379  |
| ICAP_BITORDER                        | 4380  |
| ICAP_CCITTKFACTOR                    | 4381  |
| ICAP_LIGHTPATH                       | 4382  |
| ICAP_PIXELFLAVOR                     | 4383  |
| ICAP_PLANARCHUNKY                    | 4384  |
| ICAP_ROTATION                        | 4385  |
| ICAP_SUPPORTEDSIZES                  | 4386  |
| ICAP_THRESHOLD                       | 4387  |
| ICAP_XSCALING                        | 4388  |
| ICAP_YSCALING                        | 4389  |
| ICAP_BITORDERCODES                   | 4390  |
| ICAP_PIXELFLAVORCODES                | 4391  |
| ICAP_JPEGPIXELTYPE                   | 4392  |
| ICAP_TIMEFILL                        | 4394  |
| ICAP_BITDEPTH                        | 4395  |
| ICAP_BITDEPTHREDUCTION               | 4396  |
| ICAP_UNDEFINEDIMAGESIZE              | 4397  |
| ICAP_EXTIMAGEINFO                    | 4399  |
| ICAP_MINIMUMHEIGHT                   | 4400  |
| ICAP_MINIMUMWIDTH                    | 4401  |
| ICAP_AUTODISCARDBLANKPAGES           | 4404  |
| ICAP_FLIPROTATION                    | 4406  |
| ICAP_BARCODEDETECTIONENABLED         | 4407  |
| ICAP_SUPPORTEDBARCODETYPES           | 4408  |
| ICAP_BARCODEMAXSEARCHPRIORITIES      | 4409  |
| ICAP_BARCODESEARCHPRIORITIES         | 4410  |
| ICAP_BARCODESEARCHMODE               | 4411  |
| ICAP_BARCODEMAXRETRIES               | 4412  |
| ICAP_BARCODETIMEOUT                  | 4413  |
| ICAP_ZOOMFACTOR                      | 4414  |
| ICAP_PATCHCODEDETECTIONENABLED       | 4415  |
| ICAP_SUPPORTEDPATCHCODETYPES         | 4416  |
| ICAP_PATCHCODEMAXSEARCHPRIORITIES    | 4417  |
| ICAP_PATCHCODESEARCHPRIORITIES       | 4418  |
| ICAP_PATCHCODESEARCHMODE             | 4419  |
| ICAP_PATCHCODEMAXRETRIES             | 4420  |
| ICAP_PATCHCODETIMEOUT                | 4421  |
| ICAP_FLASHUSED2                      | 4422  |
| ICAP_IMAGEFILTER                     | 4423  |
| ICAP_NOISEFILTER                     | 4424  |
| ICAP_OVERSCAN                        | 4425  |
| ICAP_AUTOMATICBORDERDETECTION        | 4432  |
| ICAP_AUTOMATICDESKEW                 | 4433  |
| ICAP_AUTOMATICROTATE                 | 4434  |
| ICAP_JPEGQUALITY                     | 4435  |
| ICAP_FEEDERTYPE                      | 4436  |
| ICAP_ICCPROFILE                      | 4437  |
| ICAP_AUTOSIZE                        | 4438  |
| ICAP_AUTOMATICCROPUSESFRAME          | 4439  |
| ICAP_AUTOMATICLENGTHDETECTION        | 4440  |
| ICAP_AUTOMATICCOLORENABLED           | 4441  |
| ICAP_AUTOMATICCOLORNONCOLORPIXELTYPE | 4442  |
| ICAP_COLORMANAGEMENTENABLED          | 4443  |
| ICAP_IMAGEMERGE                      | 4444  |
| ICAP_IMAGEMERGEHEIGHTTHRESHOLD       | 4445  |
| ICAP_SUPPORTEDEXTIMAGEINFO           | 4446  |

## Dynamsoft.DWT.EnumDWT_CapType

| Label            | Value |
| :--------------- | :---- |
| TWON_NONE        | 0     |
| TWON_ARRAY       | 3     |
| TWON_ENUMERATION | 4     |
| TWON_ONEVALUE    | 5     |
| TWON_RANGE       | 6     |

## Dynamsoft.DWT.EnumDWT_TransferMode

| Label       | Value |
| :---------- | :---- |
| TWSX_NATIVE | 0     |
| TWSX_FILE   | 1     |
| TWSX_MEMORY | 2     |

## Dynamsoft.DWT.EnumDWT_FileFormat

| Label          | Value | Description                                                                               |
| :------------- | :---- | :---------------------------------------------------------------------------------------- |
| TWFF_TIFF      | 0     | Tagged Image File Format. Used for document imaging. Native Linux format                  |
| TWFF_PICT      | 1     | Native Macintosh format                                                                   |
| TWFF_BMP       | 2     | Native Microsoft format                                                                   |
| TWFF_XBM       | 3     | X-Windows Bitmap used for document imaging                                                |
| TWFF_JFIF      | 4     | JPEG File Interchange Format. Wrapper for JPEG images                                     |
| TWFF_FPX       | 5     | FlashPix, used with digital cameras                                                       |
| TWFF_TIFFMULTI | 6     | Multi-page TIFF files                                                                     |
| TWFF_PNG       | 7     | An image format standard intended for use on the web, replaces GIF                        |
| TWFF_SPIFF     | 8     | A standard from JPEG, intended to replace JFIF, also supports JBIG                        |
| TWFF_EXIF      | 9     | File format for use with digital cameras                                                  |
| TWFF_PDF       | 10    | A file format from Adobe (TWAIN Spec 1.91)                                                |
| TWFF_JP2       | 11    | A file format from the Joint Photographic Experts Group ISO/IEC 15444-1 (TWAIN Spec 1.91) |
| TWFF_JPX       | 13    | A file format from the Joint Photographic Experts Group ISO/IEC 15444-2 (TWAIN Spec 1.91) |
| TWFF_DEJAVU    | 14    | A file format from LizardTech (TWAIN Spec 1.91)                                           |
| TWFF_PDFA      | 15    | A file format from Adobe PDF/A, Version 1 (TWAIN Spec 2.0)                                |
| TWFF_PDFA2     | 16    | A file format from Adobe PDF/A, Version 2 (TWAIN Spec 2.1)                                |

## Dynamsoft.DWT.EnumDWT_TIFFCompressionType

| Label         | Value |
| :------------ | :---- |
| TIFF_AUTO     | 0     |
| TIFF_NONE     | 1     |
| TIFF_RLE      | 2     |
| TIFF_FAX3     | 3     |
| TIFF_T4       | 3     |
| TIFF_FAX4     | 4     |
| TIFF_T6       | 4     |
| TIFF_LZW      | 5     |
| TIFF_JPEG     | 7     |
| TIFF_PACKBITS | 32773 |

## Dynamsoft.DWT.EnumDWT_InterpolationMethod

| Label               | Value |
| :------------------ | :---- |
| IM_NEARESTNEIGHBOUR | 1     |
| IM_BILINEAR         | 2     |
| IM_BICUBIC          | 3     |
| IM_BESTQUALITY      | 5     |

## Dynamsoft.DWT.EnumDWT_ImageType

| Label            | Value |
| :--------------- | :---- |
| IT_BMP           | 0     |
| IT_JPG           | 1     |
| IT_TIF           | 2     |
| IT_PNG           | 3     |
| IT_PDF           | 4     |
| IT_ALL           | 5     |
| IT_MULTIPAGE_PDF | 7     |
| IT_MULTIPAGE_TIF | 8     |

Note:

- IT_MULTIPAGE_PDF & IT_MULTIPAGE_TIF are only applicable to the ImageType of [`startScan()`](/_articles/info/api/WebTwain_Acquire.md#startscan).
- IT_ALL is only applicable to the ImageType of [`LoadImageEx()`](/_articles/info/api/WebTwain_IO.md#loadimageex){% comment %}, [`LoadImageFromBase64Binary()`](/_articles/info/api/WebTwain_IO.md#loadimagefrombase64binary), [`HTTPDownloadEx()`](/_articles/info/api/WebTwain_IO.md#httpdownloadex), [`HTTPDownloadThroughPost()`](/_articles/info/api/WebTwain_IO.md#httpdownloadthroughpost){% endcomment %}.

## Dynamsoft.DWT.EnumDWT_ImageFormatType

| Label  | Value |
| :----- | :---- |
| URL    | 0     |
| Blob   | 1     |
| Base64 | 2     |

## Dynamsoft.DWT.EnumPDF_Page

| Label               | Value |
| :------------------ | :---- |
| Page_Default        | 0     |
| Page_Custom         | 1     |
| Page_A4             | 2     |
| Page_A4_Reverse     | 3     |
| Page_A3             | 4     |
| Page_A3_Reverse     | 5     |
| Page_Letter         | 6     |
| Page_Letter_Reverse | 7     |
| Page_Legal          | 8     |
| Page_Legal_Reverse  | 9     |

## Dynamsoft.DWT.EnumDWT_PDFCompressionType

| Label      | Value |
| :--------- | :---- |
| PDF_AUTO   | 0     |
| PDF_FAX4   | 2     |
| PDF_LZW    | 3     |
| PDF_JPEG   | 5     |
| PDF_JP2000 | 6     |
| PDF_JBIG2  | 7     |

## Dynamsoft.DWT.EnumDWT_ShowMode

| Label     | Value |
| :-------- | :---- |
| SW_ACTIVE | 0     |
| SW_MAX    | 1     |
| SW_MIN    | 2     |
| SW_CLOSE  | 3     |
| SW_IFLIVE | 4     |

## Dynamsoft.DWT.EnumDWT_CapValueType

| Label       | Value |
| :---------- | :---- |
| TWTY_INT8   | 0     |
| TWTY_INT16  | 1     |
| TWTY_INT32  | 2     |
| TWTY_UINT8  | 3     |
| TWTY_UINT16 | 4     |
| TWTY_int    | 5     |
| TWTY_BOOL   | 6     |
| TWTY_FIX32  | 7     |
| TWTY_FRAME  | 8     |
| TWTY_STR32  | 9     |
| TWTY_STR64  | 10    |
| TWTY_STR128 | 11    |
| TWTY_STR255 | 12    |

## Dynamsoft.DWT.EnumDWT_UnitType

| Label            | Value |
| :--------------- | :---- |
| TWUN_INCHES      | 0     |
| TWUN_CENTIMETERS | 1     |
| TWUN_PICAS       | 2     |
| TWUN_POINTS      | 3     |
| TWUN_TWIPS       | 4     |
| TWUN_PIXELS      | 5     |
| TWUN_MILLIMETERS | 6     |

## Dynamsoft.DWT.EnumDWT_ConvertMode

| Label        | Value |
| :----------- | :---- |
| CM_RENDERALL | 1     |
| CM_IMAGEONLY | 2     |
| CM_AUTO      | 3     |

Note: The below enumeration value has been deprecated as of 18.4.

| Label                      | Value |
| :------------------------- | :---- |
| CM_RENDERALLWITHANNOTATION | 4     |

## Dynamsoft.DWT.EnumDWT_DUPLEX

| Label            | Value |
| :--------------- | :---- |
| TWDX_NONE        | 0     |
| TWDX_1PASSDUPLEX | 1     |
| TWDX_2PASSDUPLEX | 2     |

## Dynamsoft.DWT.EnumDWT_CapLanguage

| Label                     | Value |
| :------------------------ | :---- |
| TWLG_DAN                  | 0     |
| TWLG_DUT                  | 1     |
| TWLG_ENG                  | 2     |
| TWLG_FCF                  | 3     |
| TWLG_FIN                  | 4     |
| TWLG_FRN                  | 5     |
| TWLG_GER                  | 6     |
| TWLG_ICE                  | 7     |
| TWLG_ITN                  | 8     |
| TWLG_NOR                  | 9     |
| TWLG_POR                  | 10    |
| TWLG_SPA                  | 11    |
| TWLG_SWE                  | 12    |
| TWLG_USA                  | 13    |
| TWLG_USERLOCALE           | -1    |
| TWLG_AFRIKAANS            | 14    |
| TWLG_ALBANIA              | 15    |
| TWLG_ARABIC               | 16    |
| TWLG_ARABIC_ALGERIA       | 17    |
| TWLG_ARABIC_BAHRAIN       | 18    |
| TWLG_ARABIC_EGYPT         | 19    |
| TWLG_ARABIC_IRAQ          | 20    |
| TWLG_ARABIC_JORDAN        | 21    |
| TWLG_ARABIC_KUWAIT        | 22    |
| TWLG_ARABIC_LEBANON       | 23    |
| TWLG_ARABIC_LIBYA         | 24    |
| TWLG_ARABIC_MOROCCO       | 25    |
| TWLG_ARABIC_OMAN          | 26    |
| TWLG_ARABIC_QATAR         | 27    |
| TWLG_ARABIC_SAUDIARABIA   | 28    |
| TWLG_ARABIC_SYRIA         | 29    |
| TWLG_ARABIC_TUNISIA       | 30    |
| TWLG_ARABIC_UAE           | 31    |
| TWLG_ARABIC_YEMEN         | 32    |
| TWLG_BASQUE               | 33    |
| TWLG_BYELORUSSIAN         | 34    |
| TWLG_BULGARIAN            | 35    |
| TWLG_CATALAN              | 36    |
| TWLG_CHINESE              | 37    |
| TWLG_CHINESE_HONGKONG     | 38    |
| TWLG_CHINESE_PRC          | 39    |
| TWLG_CHINESE_SINGAPORE    | 40    |
| TWLG_CHINESE_SIMPLIFIED   | 41    |
| TWLG_CHINESE_TAIWAN       | 42    |
| TWLG_CHINESE_TRADITIONAL  | 43    |
| TWLG_CROATIA              | 44    |
| TWLG_CZECH                | 45    |
| TWLG_DANISH               | 0     |
| TWLG_DUTCH                | 1     |
| TWLG_DUTCH_BELGIAN        | 46    |
| TWLG_ENGLISH              | 2     |
| TWLG_ENGLISH_AUSTRALIAN   | 47    |
| TWLG_ENGLISH_CANADIAN     | 48    |
| TWLG_ENGLISH_IRELAND      | 49    |
| TWLG_ENGLISH_NEWZEALAND   | 50    |
| TWLG_ENGLISH_SOUTHAFRICA  | 51    |
| TWLG_ENGLISH_UK           | 52    |
| TWLG_ENGLISH_USA          | 13    |
| TWLG_ESTONIAN             | 53    |
| TWLG_FAEROESE             | 54    |
| TWLG_FARSI                | 55    |
| TWLG_FINNISH              | 4     |
| TWLG_FRENCH               | 5     |
| TWLG_FRENCH_BELGIAN       | 56    |
| TWLG_FRENCH_CANADIAN      | 3     |
| TWLG_FRENCH_LUXEMBOURG    | 57    |
| TWLG_FRENCH_SWISS         | 58    |
| TWLG_GERMAN               | 6     |
| TWLG_GERMAN_AUSTRIAN      | 59    |
| TWLG_GERMAN_LUXEMBOURG    | 60    |
| TWLG_GERMAN_LIECHTENSTEIN | 61    |
| TWLG_GERMAN_SWISS         | 62    |
| TWLG_GREEK                | 63    |
| TWLG_HEBREW               | 64    |
| TWLG_HUNGARIAN            | 65    |
| TWLG_ICELANDIC            | 7     |
| TWLG_INDONESIAN           | 66    |
| TWLG_ITALIAN              | 8     |
| TWLG_ITALIAN_SWISS        | 67    |
| TWLG_JAPANESE             | 68    |
| TWLG_KOREAN               | 69    |
| TWLG_KOREAN_JOHAB         | 70    |
| TWLG_LATVIAN              | 71    |
| TWLG_LITHUANIAN           | 72    |
| TWLG_NORWEGIAN            | 9     |
| TWLG_NORWEGIAN_BOKMAL     | 73    |
| TWLG_NORWEGIAN_NYNORSK    | 74    |
| TWLG_POLISH               | 75    |
| TWLG_PORTUGUESE           | 10    |
| TWLG_PORTUGUESE_BRAZIL    | 76    |
| TWLG_ROMANIAN             | 77    |
| TWLG_RUSSIAN              | 78    |
| TWLG_SERBIAN_LATIN        | 79    |
| TWLG_SLOVAK               | 80    |
| TWLG_SLOVENIAN            | 81    |
| TWLG_SPANISH              | 11    |
| TWLG_SPANISH_MEXICAN      | 82    |
| TWLG_SPANISH_MODERN       | 83    |
| TWLG_SWEDISH              | 12    |
| TWLG_THAI                 | 84    |
| TWLG_TURKISH              | 85    |
| TWLG_UKRANIAN             | 86    |
| TWLG_ASSAMESE             | 87    |
| TWLG_BENGALI              | 88    |
| TWLG_BIHARI               | 89    |
| TWLG_BODO                 | 90    |
| TWLG_DOGRI                | 91    |
| TWLG_GUJARATI             | 92    |
| TWLG_HARYANVI             | 93    |
| TWLG_HINDI                | 94    |
| TWLG_KANNADA              | 95    |
| TWLG_KASHMIRI             | 96    |
| TWLG_MALAYALAM            | 97    |
| TWLG_MARATHI              | 98    |
| TWLG_MARWARI              | 99    |
| TWLG_MEGHALAYAN           | 100   |
| TWLG_MIZO                 | 101   |
| TWLG_NAGA                 | 102   |
| TWLG_ORISSI               | 103   |
| TWLG_PUNJABI              | 104   |
| TWLG_PUSHTU               | 105   |
| TWLG_SERBIAN_CYRILLIC     | 106   |
| TWLG_SIKKIMI              | 107   |
| TWLG_SWEDISH_FINLAND      | 108   |
| TWLG_TAMIL                | 109   |
| TWLG_TELUGU               | 110   |
| TWLG_TRIPURI              | 111   |
| TWLG_URDU                 | 112   |
| TWLG_VIETNAMESE           | 113   |

## Dynamsoft.DWT.EnumDWT_CapSupportedSizes

| Label             | Value |
| :---------------- | :---- |
| TWSS_NONE         | 0     |
| TWSS_A4LETTER     | 1     |
| TWSS_B5LETTER     | 2     |
| TWSS_USLETTER     | 3     |
| TWSS_USLEGAL      | 4     |
| TWSS_A5           | 5     |
| TWSS_B4           | 6     |
| TWSS_B6           | 7     |
| TWSS_USLEDGER     | 9     |
| TWSS_USEXECUTIVE  | 10    |
| TWSS_A3           | 11    |
| TWSS_B3           | 12    |
| TWSS_A6           | 13    |
| TWSS_C4           | 14    |
| TWSS_C5           | 15    |
| TWSS_C6           | 16    |
| TWSS_4A0          | 17    |
| TWSS_2A0          | 18    |
| TWSS_A0           | 19    |
| TWSS_A1           | 20    |
| TWSS_A2           | 21    |
| TWSS_A4           | 1     |
| TWSS_A7           | 22    |
| TWSS_A8           | 23    |
| TWSS_A9           | 24    |
| TWSS_A10          | 25    |
| TWSS_ISOB0        | 26    |
| TWSS_ISOB1        | 27    |
| TWSS_ISOB2        | 28    |
| TWSS_ISOB3        | 12    |
| TWSS_ISOB4        | 6     |
| TWSS_ISOB5        | 29    |
| TWSS_ISOB6        | 7     |
| TWSS_ISOB7        | 30    |
| TWSS_ISOB8        | 31    |
| TWSS_ISOB9        | 32    |
| TWSS_ISOB10       | 33    |
| TWSS_JISB0        | 34    |
| TWSS_JISB1        | 35    |
| TWSS_JISB2        | 36    |
| TWSS_JISB3        | 37    |
| TWSS_JISB4        | 38    |
| TWSS_JISB5        | 2     |
| TWSS_JISB6        | 39    |
| TWSS_JISB7        | 40    |
| TWSS_JISB8        | 41    |
| TWSS_JISB9        | 42    |
| TWSS_JISB10       | 43    |
| TWSS_C0           | 44    |
| TWSS_C1           | 45    |
| TWSS_C2           | 46    |
| TWSS_C3           | 47    |
| TWSS_C7           | 48    |
| TWSS_C8           | 49    |
| TWSS_C9           | 50    |
| TWSS_C10          | 51    |
| TWSS_USSTATEMENT  | 52    |
| TWSS_BUSINESSCARD | 53    |
| TWSS_MAXSIZE      | 54    |

## Dynamsoft.DWT.EnumDWT_CapFeederAlignment

| Label       | Value |
| :---------- | :---- |
| TWFA_NONE   | 0     |
| TWFA_LEFT   | 1     |
| TWFA_CENTER | 2     |
| TWFA_RIGHT  | 3     |

## Dynamsoft.DWT.EnumDWT_CapFeederOrder

| Label               | Value |
| :------------------ | :---- |
| TWFO_FIRSTPAGEFIRST | 0     |
| TWFO_LASTPAGEFIRST  | 1     |

## Dynamsoft.DWT.EnumDWT_CapPrinter

| Label                      | Value |
| :------------------------- | :---- |
| TWPR_IMPRINTERTOPBEFORE    | 0     |
| TWPR_IMPRINTERTOPAFTER     | 1     |
| TWPR_IMPRINTERBOTTOMBEFORE | 2     |
| TWPR_IMPRINTERBOTTOMAFTER  | 3     |
| TWPR_ENDORSERTOPBEFORE     | 4     |
| TWPR_ENDORSERTOPAFTER      | 5     |
| TWPR_ENDORSERBOTTOMBEFORE  | 6     |
| TWPR_ENDORSERBOTTOMAFTER   | 7     |

## Dynamsoft.DWT.EnumDWT_CapPrinterMode

| Label               | Value |
| :------------------ | :---- |
| TWPM_SINGLESTRING   | 0     |
| TWPM_MULTISTRING    | 1     |
| TWPM_COMPOUNDSTRING | 2     |

## Dynamsoft.DWT.EnumDWT_CapBitdepthReduction

| Label             | Value |
| :---------------- | :---- |
| TWBR_THRESHOLD    | 0     |
| TWBR_HALFTONE     | 1     |
| TWBR_CUSTHALFTONE | 2     |
| TWBR_DIFFUSION    | 3     |

## Dynamsoft.DWT.EnumDWT_CapBitOrder

| Label         | Value |
| :------------ | :---- |
| TWBO_LSBFIRST | 0     |
| TWBO_MSBFIRST | 1     |

## Dynamsoft.DWT.EnumDWT_CapFilterType

| Label        | Value |
| :----------- | :---- |
| TWFT_RED     | 0     |
| TWFT_GREEN   | 1     |
| TWFT_BLUE    | 2     |
| TWFT_NONE    | 3     |
| TWFT_WHITE   | 4     |
| TWFT_CYAN    | 5     |
| TWFT_MAGENTA | 6     |
| TWFT_YELLOW  | 7     |
| TWFT_BLACK   | 8     |

## Dynamsoft.DWT.EnumDWT_CapFlash

| Label       | Value |
| :---------- | :---- |
| TWFL_NONE   | 0     |
| TWFL_OFF    | 1     |
| TWFL_ON     | 2     |
| TWFL_AUTO   | 3     |
| TWFL_REDEYE | 4     |

## Dynamsoft.DWT.EnumDWT_CapFlipRotation

| Label        | Value |
| :----------- | :---- |
| TWFR_BOOK    | 0     |
| TWFR_FANFOLD | 1     |

## Dynamsoft.DWT.EnumDWT_CapImageFilter

| Label         | Value |
| :------------ | :---- |
| TWIF_NONE     | 0     |
| TWIF_AUTO     | 1     |
| TWIF_LOWPASS  | 2     |
| TWIF_BANDPASS | 3     |
| TWIF_HIGHPASS | 4     |
| TWIF_TEXT     | 3     |
| TWIF_FINELINE | 4     |

## Dynamsoft.DWT.EnumDWT_CapLightPath

| Label             | Value |
| :---------------- | :---- |
| TWLP_REFLECTIVE   | 0     |
| TWLP_TRANSMISSIVE | 1     |

## Dynamsoft.DWT.EnumDWT_CapLightSource

| Label      | Value |
| :--------- | :---- |
| TWLS_RED   | 0     |
| TWLS_GREEN | 1     |
| TWLS_BLUE  | 2     |
| TWLS_NONE  | 3     |
| TWLS_WHITE | 4     |
| TWLS_UV    | 5     |
| TWLS_IR    | 6     |

## Dynamsoft.DWT.EnumDWT_MagType

| Label        | Value |
| :----------- | :---- |
| TWMD_MICR    | 0     |
| TWMD_RAW     | 1     |
| TWMD_INVALID | 2     |

## Dynamsoft.DWT.EnumDWT_CapNoiseFilter

| Label             | Value |
| :---------------- | :---- |
| TWNF_NONE         | 0     |
| TWNF_AUTO         | 1     |
| TWNF_LONEPIXEL    | 2     |
| TWNF_MAJORITYRULE | 3     |

## Dynamsoft.DWT.EnumDWT_CapORientation

| Label            | Value |
| :--------------- | :---- |
| TWOR_ROT0        | 0     |
| TWOR_ROT90       | 1     |
| TWOR_ROT180      | 2     |
| TWOR_ROT270      | 3     |
| TWOR_PORTRAIT    | 0     |
| TWOR_LANDSCAPE   | 3     |
| TWOR_AUTO        | 4     |
| TWOR_AUTOTEXT    | 5     |
| TWOR_AUTOPICTURE | 6     |

## Dynamsoft.DWT.EnumDWT_CapOverscan

| Label          | Value |
| :------------- | :---- |
| TWOV_NONE      | 0     |
| TWOV_AUTO      | 1     |
| TWOV_TOPBOTTOM | 2     |
| TWOV_LEFTRIGHT | 3     |
| TWOV_ALL       | 4     |

## Dynamsoft.DWT.EnumDWT_CapPixelFlavor

| Label          | Value |
| :------------- | :---- |
| TWPF_CHOCOLATE | 0     |
| TWPF_VANILLA   | 1     |

## Dynamsoft.DWT.EnumDWT_CapPlanarChunky

| Label       | Value |
| :---------- | :---- |
| TWPC_CHUNKY | 0     |
| TWPC_PLANAR | 1     |

## Dynamsoft.DWT.EnumDWT_DataSourceStatus

| Label           | Value |
| :-------------- | :---- |
| TWDSS_CLOSED    | 0     |
| TWDSS_OPENED    | 1     |
| TWDSS_ENABLED   | 2     |
| TWDSS_ACQUIRING | 3     |

## Dynamsoft.DWT.EnumDWT_FitWindowType

| Label               | Value |
| :------------------ | :---- |
| enumFitWindow       | 0     |
| enumFitWindowHeight | 1     |
| enumFitWindowWidth  | 2     |

## Dynamsoft.DWT.EnumDWT_PlatformType

| Label      | Value |
| :--------- | :---- |
| enumWindow | 0     |
| enumMac    | 1     |
| enumLinux  | 2     |

## Dynamsoft.DWT.EnumDWT_UploadDataFormat

| Label  | Value |
| :----- | :---- |
| Binary | 0     |
| Base64 | 1     |

## Dynamsoft.DWT.EnumDWT_MouseShape

| Label     | Value |
| :-------- | :---- |
| Default   | 0     |
| Hand      | 1     |
| Crosshair | 2     |
| Zoom      | 3     |
| NWResize  | 4     |
| EResize   | 5     |
| NResize   | 6     |
| Resize    | 7     |
| Move      | 8     |

{% comment %}

## Dynamsoft.DWT.EnumDWT_InitMsg

| Label                   | Value |
| :---------------------- | :---- |
| Info                    | 1     |
| Error                   | 2     |
| NotInstalledError       | 3     |
| DownloadError           | 4     |
| DownloadNotRestartError | 5     |

{% endcomment %}

## Dynamsoft.DWT.EnumDWT_Driver

| Label             | Value |
| :---------------- | :---- |
| TWAIN             | 0     |
| ICA               | 3     |
| SANE              | 3     |
| TWAIN_AND_ICA     | 4     |
| TWAIN_AND_TWAIN64 | 4     |
| TWAIN64           | 5     |

## Dynamsoft.DWT.EnumDWT_CameraControlProperty

| Label        | Value | Description                                                                                                                                                                                                                                                                                 |
| :----------- | :---- | :------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| CCP_PAN      | 0     | Specify the pan in degrees. Values range from –180 to +180. By default, it's 0. Positive values are clockwise from the origin (the camera rotates clockwise when viewed from above), and negative values are counterclockwise from the origin.                                              |
| CCP_TILT     | 1     | Specify the tilt in degrees. Values range from –180 to +180. By default, it's 0. Positive values point the imaging plane up, and negative values point the imaging plane down.                                                                                                              |
| CCP_ROLL     | 2     | Specify the roll in degrees. Values range from –180 to +180. By default, it's 0. Positive values cause a clockwise rotation of the camera along the image-viewing axis, and negative values cause a counterclockwise rotation of the camera.                                                |
| CCP_ZOOM     | 3     | Specify the zoom in millimeters. Values range from 10 to 600, and the default is specific to the device.                                                                                                                                                                                    |
| CCP_EXPOSURE | 4     | Specify the exposure in log base 2 seconds. In other words, for values less than zero, the exposure time is 1/2^n seconds, and for values zero or above, the exposure time is 2^n seconds. For example: -3 means 1/8 second, -2 means 1/4 second, 0 means 1 second, 2 means 4 seconds, etc. |
| CCP_IRIS     | 5     | Specify the iris in units of fstop\* 10.                                                                                                                                                                                                                                                    |
| CCP_FOCUS    | 6     | Specify the focus in millimeters which is the distance to the optimally focused target. The range and default value are specific to the device.                                                                                                                                             |

## Dynamsoft.DWT.EnumDWT_VideoProperty

| Label                    | Value | Description                                                                                                                                                                                                                              |
| :----------------------- | :---- | :--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| VP_BRIGHTNESS            | 0     | Specify the brightness. For NTSC, the value is expressed in IRE units \* 100. For non-NTSC sources, the units are arbitrary, with zero representing blanking and 10, 000 representing pure white. Values range from –10, 000 to 10, 000. |
| VP_CONTRAST              | 1     | Specify the contrast which is expressed as the gain factor \* 100. Values range from zero to 10, 000.                                                                                                                                    |
| VP_HUE                   | 2     | Specify the hue which is expressed in degrees \* 100. Values range from -180, 000 to 180, 000 (-180 to +180 degrees).                                                                                                                    |
| VP_SATURATION            | 3     | Specify the saturation. Values range from 0 to 10, 000.                                                                                                                                                                                  |
| VP_SHARPNESS             | 4     | Specify the sharpness. Values range from 0 to 100.                                                                                                                                                                                       |
| VP_GAMMA                 | 5     | Specify the gamma which is expressed as gamma \* 100. Values range from 1 to 500.                                                                                                                                                        |
| VP_COLORENABLE           | 6     | Specify the color-enable setting. It's either 0 (off) or 1 (on).                                                                                                                                                                         |
| VP_WHITEBALANCE          | 7     | Specify the white balance, as a color temperature in degrees Kelvin. The range of values depends on the device.                                                                                                                          |
| VP_BACKLIGHTCOMPENSATION | 8     | Specify the backlight compensation setting. It's either 0 (off) or 1 (on).                                                                                                                                                               |
| VP_GAIN                  | 9     | Specify the gain adjustment. Zero is normal. Positive values are brighter and negative values are darker. The range of values depends on the device.                                                                                     |

## Dynamsoft.DWT.EnumDWT_VideoRotateMode

| Label                     | Value | Description           |
| :------------------------ | :---- | :-------------------- |
| VRM_NONE                  | 0     | No rotation           |
| VRM_90_DEGREES_CLOCKWISE  | 1     | 90 degrees Clockwise  |
| VRM_180_DEGREES_CLOCKWISE | 2     | 180 degrees Clockwise |
| VRM_270_DEGREES_CLOCKWISE | 3     | 270 degrees Clockwise |
| VRM_FLIP_VERTICAL         | 4     | Flip                  |
| VRM_FLIP_HORIZONTAL       | 5     | Mirror                |

## Dynamsoft.DWT.EnumDWT_SelectionMode

| Label    | Value |
| :------- | :---- |
| Single   | 0     |
| Multiple | 1     |

## Dynamsoft.DWT.EnumDWT_ConfirmExitType

| Label       | Value |
| :---------- | :---- |
| Cancel      | 0     |
| Exit        | 1     |
| SaveAndExit | 2     |

## Dynamsoft.DWT.EnumDWT_DeviceType

| Label             | Value | Description                                                                                                      |
| :---------------- | :---- | :--------------------------------------------------------------------------------------------------------------- |
| TWAINSCANNER      | 0x10  |                                                                                                                  |
| WIASCANNER        | 0x20  |                                                                                                                  |
| TWAINX64SCANNER   | 0x40  |                                                                                                                  |
| ICASCANNER        | 0x80  |                                                                                                                  |
| SANESCANNER       | 0x100 |                                                                                                                  |
| ESCLSCANNER       | 0x200 |                                                                                                                  |
| WIFIDIRECTSCANNER | 0x400 |                                                                                                                  |
| WIATWAINSCANNER   | 0x800 | Deprecated since version 18.2 and will be removed in future versions, please use the value `WIASCANNER` instead. |

## Dynamsoft.DWT.EnumDWT_ExtImageInfo

| Label     | Value |
| :-------- | :---- |
| default   | 0     |
| standard  | 1     |
| supported | 2     |

## Dynamsoft.DWT.EnumDWT_WorkMode

| Label   | Value | Description                                              |
| :------ | :---- | :------------------------------------------------------- |
| normal  | 0     | Original mode, the image data is processed in the buffer |
| balance | 1     | The image data is processed in the browser canvas        |

## Dynamsoft.DWT.EnumDWT_CompressionType

| Label            | Value |
| :--------------- | :---- |
| TWCP_NONE        | 0     |
| TWCP_PACKBITS    | 1     |
| TWCP_GROUP31D    | 2     |
| TWCP_GROUP31DEOL | 3     |
| TWCP_GROUP32D    | 4     |
| TWCP_GROUP4      | 5     |
| TWCP_JPEG        | 6     |
| TWCP_LZW         | 7     |
| TWCP_JBIG        | 8     |
| TWCP_PNG         | 9     |
| TWCP_RLE4        | 10    |
| TWCP_RLE8        | 11    |
| TWCP_BITFIELDS   | 12    |
| TWCP_ZIP         | 13    |
| TWCP_JPEG2000    | 14    |

## Dynamsoft.DWT.EnumDWT_ResponseType

| Label       | Value |
| :---------- | :---- |
| Text        | 0     |
| Blob        | 1     |
| ArrayBuffer | 2     |
| XML         | 3     |
| JSON        | 4     |


## Dynamsoft.DWT.EnumDWT_OCRKitOutputFormat

| Label                      | Value |
| :------------------------- | :---- |
| TEXT                       | 0     |
| PDF_PLAIN_TEXT             | 1     |
| PDF_WITH_EXTRA_TEXTLAYER   | 2     |


Note:

`PDF_PLAIN_TEXT` will only keep a text layer of the OCRed text for each page.

`PDF_WITH_EXTRA_TEXTLAYER` will add an extra invisible text layer of the OCRed text above each page.

## Dynamsoft.DWT.EnumDWT_PageOrientation

| Label                      | Value |
| :------------------------- | :---- |
| AUTO                       | -1    |
| ANGLE_0                    | 0     |
| ANGLE_90                   | 90    |
| ANGLE_180                  | 180   |
| ANGLE_270                  | 270   |

## Dynamsoft.DWT.EnumDWT_PageOrientationDetectionMode

| Label                      | Value |
| :------------------------- | :---- |
| FAST                       | 0     |
| BALANCE                    | 1     |
| PRECISION                  | 2     |