Global

[AudibleAlarms] Turns specific audible alarms on and off. CAP_ALARMS

[AudibleAlarms] Controls the volume of a device’s audible alarm. CAP_ALARMVOLUME

[AutomaticCapture] The number of images to automatically capture. This does not refer to the number of images to be sent to the Application, use CAP_XFERCOUNT for that. CAP_AUTOMATICCAPTURE

[Feeder] If TRUE, the Source will automatically feed the next page from the document feeder after the number of frames negotiated for capture from each page are acquired. CAP_FEEDERENABLED must be TRUE to use this capability. CAP_AUTOFEED

[ImageInformation] Author of acquired image (may include a copyright string). Gets the author. CAP_AUTHOR

[AutomaticAdjustments] Reduces the amount of data captured from the device, potentially improving the performance of the driver. Read only. ICAP_AUTOMATICDESKEW

[AutomaticScanning] Enables the source’s automatic document scanning process. CAP_AUTOSCAN

[AutomaticAdjustments] Discards blank pages. ICAP_AUTODISCARDBLANKPAGES

[ImageAcquire] The source Auto-brightness function (if any). ICAP_AUTOBRIGHT

[AutomaticAdjustments] Turns automatic border detection on and off. ICAP_AUTOMATICBORDERDETECTION

[AutomaticAdjustments] Configures a Source to check for paper in the Automatic Document Feeder. CAP_AUTOMATICSENSEMEDIUM

[AutomaticAdjustments] Turns automatic skew correction on and off. ICAP_AUTOMATICDESKEW

[AutomaticAdjustments] When true, depends on source to automatically rotate the image. ICAP_AUTOMATICROTATE

[AutomaticAdjustments] Gets auto size capability. Force the output image dimensions to match either the current value of ICAP_SUPPORTEDSIZES or any of its current allowed values. ICAP_AUTOSIZE

[AutomaticAdjustments] Controls the automatic detection of the length of a document, this is intended for use with an Automatic Document Feeder. ICAP_AUTOMATICLENGTHDETECTION

[AutomaticAdjustments] Detects the pixel type of the image and returns either a color image or a non-color image specified by CapName.AUTOMATIC_COLOR_NON_COLOR_PIXEL_TYPE. ICAP_AUTOMATICCOLORENABLED

[AutomaticAdjustments] Specifies the non-color pixel type to use when automatic color is enabled. ICAP_AUTOMATICCOLORNONCOLORPIXELTYPE.

[BarCodeDetection] Specifies the maximum number of supported search priorities. ICAP_BARCODEMAXSEARCHPRIORITIES

[BarCodeDetection] A prioritized list of bar code types dictating the order in which bar codes will be sought. ICAP_BARCODESEARCHPRIORITIES

[BarCodeDetection] Restricts bar code searching to certain orientations, or prioritizes one orientation over the other. ICAP_BARCODESEARCHMODE

[BarCodeDetection] Restricts the number of times a search will be retried if none are found on each page. ICAP_BARCODEMAXRETRIES

[BarCodeDetection] Gets the bar code timeout. Restricts the total time spent on searching for a bar code on each page. ICAP_BARCODETIMEOUT

[BarCodeDetection] Support this capability if the scanner supports any Bar code recognition. If the device allows this feature to be turned off, then default to off. ICAP_BARCODEDETECTIONENABLED

[PowerMonitoring] The minutes of battery power remaining to the device. Read only. CAP_BATTERYMINUTES

[PowerMonitoring] When used with MSG_GET, return the percentage of battery power level on camera. If -1 is returned, it indicates that the battery is not present. Read only. CAP_BATTERYPERCENTAGE

[ImageType] Specifies the pixel bit depths for the Current value of . ICAP_BITDEPTH

[ImageType] Specifies the Reduction Method the Source should use to reduce the bit depth of the data. Most commonly used with = to reduce gray data to black and white. ICAP_BITDEPTHREDUCTION

[Compression] Specifies how the bytes in an image are filled by the Source. indicates that the leftmost bit in the byte (usually bit 7) is the byte’s Most Significant Bit. ICAP_BITORDER

[Compression] Used for CCITT data compression only. Indicates the bit order representation of the stored compressed codes. ICAP_BITORDERCODES

[ImageAcquire] The brightness values available within the Source. ICAP_BRIGHTNESS

[AutomaticScanning] When set to true the device will deliver images from the current camera. CAP_CAMERAENABLED

[AutomaticScanning] This capability selects the order of output for Single Document Multiple Image (SDMI) mode based on an array of pixel types; it does not constrain the allowed pixel types. CAP_CAMERAORDER

[UserInterface] This capability queries the Source for UI support for preview mode. If true, the Source supports preview UI. Read only. CAP_CAMERAPREVIEWUI

[AutomaticScanning] TWAIN models a duplex scanner as conceptually having two 'cameras' - a 'top' camera that captures the front of each page, and a 'bottom' camera that captures the back. CAP_CAMERASIDE

[ImageFormation] General note about acquired image. CAP_CAPTION

[Compression] Used for CCITT Group 3 2-dimensional compression.The ‘K’ factor indicates how often the new compression baseline should be re-established.A value of 2 or 4 is common in facsimile communication.A value of zero in this field will indicate an infinite K factor—the baseline is only calculated at the beginning of the transfer. ICAP_CCITTKFACTOR

[AutomaticScanning] Getting Value reports the presence of data in the scanner’s buffers. Setting with a value of TwCB.Clear immediately clears the buffers. CAP_CAMERASIDE

[Feeder] Source will eject the current page being acquired from and will leave the feeder acquire area empty. CAP_CLEARPAGE

[Color] Disables the Source’s color and gamma tables for color and grayscale images, resulting in output that that could be termed “raw”. ICAP_COLORMANAGEMENTENABLED

[ImageAcquire] The contrast values available within the Source. ICAP_CONTRAST

[UserInterface] Allows the application to query the data source to see if it supports the new operation triplets. CAP_CUSTOMDSDATA

[UserInterface] Uniquely identifies an interface for a Data Source, so that an Application can properly interpret its custom content. This is a read only capability. Read only. CAP_CUSTOMINTERFACEGUID

[ImageType] Specifies the square-cell halftone (dithering) matrix the Source should use to halftone the image. ICAP_CUSTHALFTONE

[AsyncDeviceEvents] Selects which events the application wants the source to report. CAP_DEVICEEVENT

[Device] If true, the physical hardware (e.g., scanner, digital camera, image database, etc.) that represents the image source is attached, powered on, and communicating. Read only. CAP_DEVICEONLINE

[Device] The date and time of the device’s clock. Managed in the form “YYYY/MM/DD HH:mm:SS:sss” CAP_DEVICETIMEDATE

[DoubleFeedDetection] Type of the double feed detection method. To disable set empty array. CAP_DOUBLEFEEDDETECTION

[DoublefeedDetection] When includes , it allows an Application to set the minimum length for detecting double feed documents.A value of zero always means “off”. CAP_DOUBLEFEEDDETECTIONLENGTH

[DoublefeedDetection] When includes , allows an Application to set how sensitive the double feed detection is. CAP_DOUBLEFEEDDETECTIONSENSITIVITY

[DoublefeedDetection] It allows an Application to set how the source will respond to detecting a double feed. CAP_DOUBLEFEEDDETECTIONRESPONSE

[Duplex] This indicates whether the scanner supports duplex. If so, it further indicates whether one-path or two-path duplex is supported. CAP_DUPLEX

[Duplex] Is duplex enabled. CAP_DUPLEXENABLED

[UserInterface] Allows an application to query a source to see if it implements the new user interface settings dialog. Read only. CAP_ENABLEDSUIONLY

[ImprinterEndorser] Allows the application to specify the scanner’s starting endorser / imprinter number. CAP_ENDORSER

[ImageInformation] Allows the application to query the data source to see if it supports the new operation triplet DG_IMAGE/DAT_EXTIMAGEINFO/ MSG_GET. ICAP_EXTIMAGEINFO

[Device] Specifies the exposure time used to capture the image, in seconds. ICAP_EXPOSURETIME

[Caps] Returns a list of the capabilities already negotiated. Read only. CAP_EXTENDEDCAPS

[Feeder!] If TRUE, the Source will eject the current page and advance the next page in the document feeder into the feeder acquire area. If CAP_AUTOFEED is TRUE, the same action just described will occur and CAP_AUTOFEED will remain active. CAP_FEEDERENABLED must equal TRUE to use this capability

[Feeder] Indicates the alignment of the document feeder. CAP_FEEDERALIGNMENT

[Feeder] If true, Source’s feeder is enabled. CAP_FEEDERENABLED

[Feeder] Reflect whether there are documents loaded in the Source’s feeder. This is a read only capability. Read only. CAP_FEEDERLOADED

[Feeder] Indicates the alignment of the document feeder. CAP_FEEDERORDER

[Feeder] Improve the movement of paper through a scanner ADF. If CAP_FEEDERENABLED is TRUE, and CAP_FEEDERPREP is TRUE, then the scanner will perform any action needed to improve the movement of paper through the transport. CAP_FEEDERPREP

[Feeder] Report what pockets are available to receive paper as it exits from the device. This capability enumerates the available output or collation pockets on the device. TWFP_POCKET1 - TWFP_POCKET16 are organized from top to bottom and left to right, facing in the direction of the motion of the paper. CAP_FEEDERPOCKET

[Feeder] Allows application to set scan parameters depending on the type of feeder being used. ICAP_FEEDERTYPE

[Color] Describes the color characteristic of the subtractive filter applied to the image data. Multiple filters may be applied to a single acquisition. ICAP_FILTER

[Device] For devices that support flash. MSG_SET selects the flash to be used (if any). MSG_GET reports the current setting.This capability replaces ICAP_FLASHUSED, which is only able to negotiate the flash being on or off. ICAP_FLASHUSED2

[AutomaticAdjustments] Orients images that flip orientation every other image. ICAP_FLIPROTATION

[Page] The list of frames the Source will acquire on each page. ICAP_FRAMES

[Color] Gamma correction value for the image data. ICAP_GAMMA

[ImageType] A list of names of the halftone patterns available within the Source. ICAP_HALFTONES

[ImageAcquire] Specifies which value in an image should be interpreted as the lightest “highlight.” All values “lighter” than this value will be clipped to this value. ICAP_HIGHLIGHT

[Color] Informs the application if the source has an ICC profile and can embed or link it in the current ICAP_IMAGEFILEFORMAT.Tells the source if the application would like an ICC profile embedded or linked into the image file the source will write. ICAP_ICCPROFILE

[Transfer] Buffered Memory transfer compression schemes. ICAP_COMPRESSION

[ImageAcquire] Gets or sets the image indices that will be delivered during the standard image transfer. ICAP_IMAGEDATASET

[Transfer] File formats for file transfers. ICAP_IMAGEFILEFORMAT

[Device] For devices that support image enhancement filtering. This capability selects the algorithm used to improve the quality of the image. ICAP_IMAGEFILTER

[AutomaticAdjustments] Merges the front and rear image of a document in one of four orientations: front on the top, front on the bottom, front on the left or front on the right. ICAP_IMAGEMERGE

[AutomaticAdjustments] Specifies a Y-Offset in ICAP_UNITS units. Front and rear images less than or equal to this value are merged according to the settings of ICAP_IMAGEMERGE. If either the front or the rear image is greater than this value, they are not merged. ICAP_IMAGEMERGEHEIGHTTHRESHOLD

[UserInterface] If true, the Source displays a progress indicator during acquisition and transfer, regardless of whether the Source's user interface is active. If FALSE, the progress indicator is suppressed if the Source's user interface is inactive. The Source displays device-specific instructions and error messages if either the user interface or progress indicator is turned on.In this case it returns TWCC_OPERATIONERROR to alert the application that it handled the error, and communicated the problem to the user. If both the user interface and progress indicator are turned off, then the Source never displays any message to the user, even if TWCC_OPERATIONERROR is returned.Messages to the user are under the sole control of the Application. CAP_INDICATORS

[UserInterface] Specify what messages can be displayed if is TRUE. CAP_INDICATORSMODE

[ImageType] The type of pixel data (B/W, gray, color, etc.). ICAP_PIXELTYPE

[Device] Unless a quantity is dimensionless or uses a specified unit of measure, this setting determines the unit of measure for all quantities. ICAP_UNITS

[Transfer] Gets the transfer mechanism. ICAP_XFERMECH

[Transfer] Allows multiple jobs in batch mode. The application can decide how the job can be processed, according to the flags listed below. CAP_JOBCONTROL

[Compression] Allows the application and Source to agree upon a common set of color descriptors that are made available by the Source.This ICAP is only useful for JPEG-compressed buffered memory image transfers. ICAP_JPEGPIXELTYPE

[Compression] Use this capability and JpegQuality as a shortcut to select JPEG quantization. ICAP_JPEGSUBSAMPLING

[Compression] Use this capability as a shortcut to select JPEG quantization tables that tradeoff quality versus compressed image size. Used in concert with DAT_JPEGCOMPRSSION it is possible for an Application to obtain the tables that are appropriate for varying percentages of quality within a given Source. ICAP_JPEGQUALITY

[Device] TRUE means the lamp is currently, or should be set to ON.Sources may not support MSG_SET operations. ICAP_LAMPSTATE

[Language] Allows application and source to identify which languages they have in common. CAP_LANGUAGE

[Device] Describes whether the image was captured transmissively or reflectively. ICAP_LIGHTPATH

[Device] Describes the general color characteristic of the light source used to acquire the image. ICAP_LIGHTSOURCE

. [AutomaticScanning] Describes the number of pages that the scanner can buffer. CAP_MAXBATCHBUFFERS

[Page] The maximum number of frames the Source can provide or the application can accept per page. This is a bounding capability only.It does not establish current or future behavior. ICAP_MAXFRAMES

[MICR] Gets the micr enabled capability. Get this capability to determine if the Source supports check scanning. If set to true check scanning is enabled, if set to false check scanning is disabled. CAP_MICRENABLED

[Device] Allows the source to define the minimum height (Y-axis) that the source can acquire (measured in units of CapName.IUNITS). This is a read only capability. Read only. ICAP_MINIMUMHEIGHT

[Device] Allows the source to define the minimum width (X-axis) that the source can acquire (measured in units of CapName.IUNITS). This is a read only capability. Read only. ICAP_MINIMUMWIDTH

[ImageAcquire] How the Source can/should mirror the scanned image data prior to transfer. ICAP_MIRROR

[Device] For devices that support noise filtering, selects the algorithm to be used. ICAP_NOISEFILTER

[ImageAcquire] Defines which edge of the “paper” the image’s “top” is aligned with. ICAP_ORIENTATION

[Device] Overscan is used to scan outside of the boundaries described by ICAP_FRAMES, and is used to help acquire image data that may be lost because of skewing. ICAP_OVERSCAN

[Feeder] Determines whether source can detect documents on the ADF or flatbed. Read only. CAP_PAPERDETECTABLE

[Feeder] Control paper handling. CAP_PAPERHANDLING

[PatchCodeDetection] Gets patch code detection enabled capability. Turns patch code detection on and off. ICAP_PATCHCODEDETECTIONENABLED

[PatchCodeDetection] Restricts the number of times a search will be retried if none are found on each page. ICAP_PATCHCODEMAXRETRIES

[PatchCodeDetection] A prioritized list of patch code types dictating the order in which patch codes will be sought. Read only. ICAP_PATCHCODESEARCHPRIORITIES

[PatchCodeDetection] The maximum number of supported search priorities. ICAP_PATCHCODEMAXSEARCHPRIORITIES

[PatchCodeDetection] Restricts patch code searching to certain orientations, or prioritizes one orientation over the other ICAP_PATCHCODESEARCHMODE

[PatchCodeDetection] Restricts the total time spent on searching for a patch code on each page. ICAP_PATCHCODETIMEOUT

[ImageType] Sense of the pixel whose numeric value is zero. ICAP_PIXELFLAVOR

[Compression] Sense of the pixel whose numeric value is zero (minimum data value). ICAP_PIXELFLAVORCODES

[Color] Allows the application and Source to identify which color data formats are available. There are two options, “planar” and “chunky.” ICAP_PLANARCHUNKY

[PowerMonitoring] MSG_GET reports the kinds of power available to the device. MSG_GETCURRENT reports the current power supply in use. This is a read only capability. Read only. CAP_POWERSUPPLY

[PowerMonitoring] When used with MSG_SET, set the camera power down timer in seconds. When used with MSG_GET, return the current setting of the power down time. CAP_POWERSAVETIME

[ImprinterEndorser] It gets the current list of available printer devices, along with the one currently being used for negotiation. Setting value selects the current device for negotiation, and optionally constrains the list. Reseting restores all the available devices(useful after setting a value has been used to constrain the list). CAP_PRINTER

[ImprinterEndorser] Orientation of each character in the font. CAP_PRINTERCHARROTATION

[ImprinterEndorser] Turns the current imprinter device on or off. CAP_PRINTERENABLED

[Device] The maximum physical height (Y-axis) the Source can acquire (measured in units of CapName.IUNITS). Read only. ICAP_PHYSICALHEIGHT

[Device] The maximum physical width (X-axis) the Source can acquire (measured in units of CapName.IUNITS). Read only. ICAP_PHYSICALWIDTH.

[ImprinterEndorser] Style (ex: bold, italic…). CAP_PRINTERFONTSTYLE

[ImprinterEndorser] Gets the index of the current imprinter. CAP_PRINTERINDEX

[ImprinterEndorser] Lead character for padding. CAP_PRINTERINDEXLEADCHAR

[ImprinterEndorser] Maximum allowed printer index value. CAP_PRINTERINDEXMAXVALUE

[ImprinterEndorser] Maximum allowed digits in printer index value. CAP_PRINTERINDEXNUMDIGITS

[ImprinterEndorser] Increment between printer index values. CAP_PRINTERINDEXSTEP

[ImprinterEndorser] Triggers for incrementing the printer index value. CAP_PRINTERINDEXTRIGGER

[ImprinterEndorser] Specifies the appropriate current imprinter device mode. CAP_PRINTERMODE

[ImprinterEndorser] Specifies the string(s) that are to be used in the string component when the current imprinter device is enabled. CAP_PRINTERSTRING

[ImprinterEndorser] Preview of what a printer string will look like. CAP_PRINTERSTRINGPREVIEW

[ImprinterEndorser] Specifies the string that shall be used as the current imprinter device’s suffix. CAP_PRINTERSUFFIX

[ImprinterEndorser] Gets the printer vertical offset. Specifies a Y-Offset in for the current imprinter device. CAP_PRINTERVERTICALOFFSET

[Feeder] Capable of acquiring multiple images of the same page without changing the physical registration of that page. Read only. CAP_REACQUIREALLOWED

[Feeder] The Source will return the current page to the input side of the document feeder and feed the last page from the output side of the feeder back into the acquisition area. CAP_REWINDPAGE

[ImageAcquire] How the Source can/should rotate the scanned image data prior to transfer. ICAP_ROTATION

[Page] Describes the segmentation setting for captured images. Image segmentation occurs when either the device, the Source or the Application breaks up an image into a stream of image components (text, pictures, graphics) that must be assembled by the application to reconstruct the original document. CAP_SEGMENTED

[Device] A string containing the serial number of the currently selected device in the Source. Multiple devices may all report the same serial number. Read only. CAP_SERIALNUMBER

[ImageAcquire] Darkest shadow, values darker than this value will be clipped to this value. ICAP_SHADOW

[BarCodeDetection] Provides a list of bar code types that can be detected by the current Data Source. This is a read only capability. Read only. ICAP_SUPPORTEDBARCODETYPES

[Caps] Returns a list of all the capabilities for which the Source will answer inquiries. Does not indicate which capabilities the Source will allow to be set by the application.Some capabilities can only be set if certain setup work has been done so the Source cannot globally answer which capabilities are “set-able.” Read only. CAP_SUPPORTEDCAPS

For Sources that allow unique values to be set for things like the top and bottom or for each segment on a page. Returns a list of all the capabilities for which the Source allows to have unique values. Read only. CAP_SUPPORTEDCAPSSEGMENTUNIQUE

[Caps] Inquire Source’s DAT messages that are valid. Read only. CAP_SUPPORTEDDATS

[ImageInformation] Gets the supported ext image information. Lists all of the information that the Source is capable of returning from a call to DAT_EXTIMAGEINFO. Read only. ICAP_SUPPORTEDEXTIMAGEINFO

[PatchCodeDetection] A list of patch code types that may be detected by the current Data Source. This is a read only capability. Read only. ICAP_SUPPORTEDPATCHCODETYPES

[Page] Gets the supported sizes capability. For devices that support fixed frame sizes. Defined sizes match typical page sizes. This specifies the size(s) the Source can/should use to acquire image data. ICAP_SUPPORTEDSIZES

[ImageType] Specifies the dividing line between black and white. This is the value the Source will use to threshold, if needed, when = . ICAP_THRESHOLD

[ImageAcquire] Allows an application to request the delivery of thumbnail representations for the set of images that are to be delivered. CAP_THUMBNAILSENABLED

[Transfer] This is used with buffered memory transfers. If TRUE, Source can provide application with tiled image data. ICAP_TILES

[AutomaticCapture] For automatic capture, this value selects the number of milliseconds before the first picture is to be taken, or the first image is to be scanned. CAP_TIMEBEFOREFIRSTCAPTURE

[AutomaticCapture] For automatic capture, this value selects the milliseconds to wait between pictures taken, or images scanned. CAP_TIMEBETWEENCAPTURES

[Compression] Used only with CCITT data compression. Specifies the minimum number of words of compressed codes(compressed data) to be transmitted per line. ICAP_TIMEFILL

[UserInterface] If true, indicates that this Source supports acquisition with/without the UI. Read only. CAP_UICONTROLLABLE

[Transfer] If TRUE the Source will issue a MSG_XFERREADY before starting the scan. ICAP_UNDEFINEDIMAGESIZE

[Transfer] Number of images the application is willing to accept this session. CAP_XFERCOUNT

[Resolution] Current/Available optical resolutions for x-axis. ICAP_XNATIVERESOLUTION

[Resolution] Measured in units of pixels per unit as defined by CapName.IUNITS. ICAP_XRESOLUTION

[ImageAcquire] All the X-axis scaling values available. A value of ‘1.0’ is equivalent to 100% scaling. Do not use values less than or equal to zero. ICAP_XSCALING

[Resolution] Current/Available optical resolutions for x-axis. ICAP_YNATIVERESOLUTION

[Resolution] Measured in units of pixels per unit as defined by CapName.IUNITS. ICAP_YRESOLUTION

[ImageAcquire] All the Y-axis scaling values available. A value of ‘1.0’ is equivalent to 100% scaling. Do not use values less than or equal to zero. ICAP_YSCALING

[Device] Camera lens zooming. ICAP_ZOOMFACTOR

No encryption.

40 bit encryption.

128 bit encryption.

Current default device name will be used.

User will be prompted to select a device.

File will be downloaded to the client in the location specified by the client settings.

File will be downloaded using the standard browser download dialog.

Connection status changes.

Device list is retrieved.

Device info is retrieved.

Current settings are retrieved.

Page is scanned.

Scan has finished.

Error occurred.

Single file has been downloaded.

Download has finished.

Single file has been retrieved.

Retrieve of file(s) has finished.

Connection is in progress.

Connection is established.

Connection is in closing state.

Connection is closed.

Connection is in error state.

Scan finished successfully.

Scan was cancelled.

Scan failed.