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| Asynchronous Device Events | |
| CAP_DEVICEEVENT | MSG_SET selects which events the application wants the source to report; MSG_RESET resets the capability to the empty array (no events set). |
| Audible Alarms | |
| CAP_ALARMS | Turns specific audible alarms on and off. |
| CAP_ALARMVOLUME | Controls the volume of a device’s audible alarm. |
| Audio | |
| ACAP_XFERMECH | Allows application and source to identify which audio transfer mechanisms they have in common. |
| Automatic Adjustments | |
| CAP_AUTOMATICSENSEMEDIUM | Configures a Source to check for paper in the Automatic Document Feeder. |
| ICAP_AUTODISCARDBLANKPAGES | Discards blank pages. |
| ICAP_AUTOMATICBORDERDETECTION | Turns automatic border detection on and off. |
| ICAP_AUTOMATICCOLORENABLED | Detects the pixel type of the image and returns either a color image or a non-color image specified by ICAP_AUTOMATICCOLORNONCOLORPIXELTYPE |
| ICAP_AUTOMATICCOLORNONCOLORPIXELTYPE | Specifies the non-color pixel type to use when automatic color is enabled. |
| ICAP_AUTOMATICCROPUSESFRAME | Reduces the amount of data captured from the device, potentially improving the performance of the driver. |
| ICAP_AUTOMATICDESKEW | Turns automatic skew correction on and off. |
| ICAP_AUTOMATICLENGTHDETECTION | Controls the automatic detection of the length of a document, this is intended for use with an Automatic Document Feeder. |
| ICAP_AUTOMATICROTATE | When TRUE , depends on source to automatically rotate the image. |
| ICAP_AUTOSIZE | Force the output image dimensions to match either the current value of ICAP_SUPPORTEDSIZES or any of its current allowed values. |
| ICAP_FLIPROTATION | Orients images that flip orientation every other image. |
| ICAP_IMAGEMERGE | Merges the front and rear image of a document in one of four orientations: front on the top. |
| ICAP_IMAGEMERGEHEIGHTTHRESHOLD | Specifies a Y-Offset in ICAP_UNITS units. |
| Automatic Capture | |
| CAP_AUTOMATICCAPTURE | Specifies the number of images to automatically capture. |
| CAP_TIMEBEFOREFIRSTCAPTURE | Selects the number of seconds before the first picture taken. |
| CAP_TIMEBETWEENCAPTURES | Selects the hundredths of a second to wait between pictures taken. |
| Automatic Scanning | |
| CAP_AUTOSCAN | Enables the source’s automatic document scanning process. |
| CAP_CAMERAENABLED | Delivers images from the current camera. |
| CAP_CAMERAORDER | Selects the order of output for Single Document Multiple Image mode. |
| CAP_CAMERASIDE | Sets the top and bottom values of cameras in a scanning device. |
| CAP_MAXBATCHBUFFERS | Describes the number of pages that the scanner can buffer when CAP_AUTOSCAN is enabled. |
| Bar Code Detection Search Parameters | |
| ICAP_BARCODEDETECTIONENABLED | Turns bar code detection on and off. |
| ICAP_SUPPORTEDBARCODETYPES | Provides a list of bar code types that can be detected by current data source. |
| ICAP_BARCODEMAXRETRIES | Restricts the number of times a search will be retried if no bar codes are found. |
| ICAP_BARCODEMAXSEARCHPRIORITIES | Specifies the maximum number of supported search priorities. |
| ICAP_BARCODESEARCHMODE | Restricts bar code searching to certain orientations, or prioritizes one orientation over another. |
| ICAP_BARCODESEARCHPRIORITIES | A prioritized list of bar code types dictating the order in which they will be sought. |
| ICAP_BARCODETIMEOUT | Restricts the total time spent on searching for bar codes on a page. |
| Capability Negotiation Parameters | |
| CAP_EXTENDEDCAPS | Capabilities negotiated in States 5, 6 and 7 |
| CAP_SUPPORTEDCAPS | Inquire Source’s capabilities valid for MSG_GET |
| CAP_SUPPORTEDDATS | Inquire Source’s DAT messages that are valid. |
| Color | |
| ICAP_COLORMANAGEMENTENABLED | Disables the Source’s color and gamma tables for color and grayscale images, resulting in output that that could be termed “raw”. |
| ICAP_FILTER | Color characteristics of the subtractive filter applied to the image data |
| ICAP_GAMMA | Gamma correction value for the image data |
| ICAP_ICCPROFILE | Embeds or links ICC profiles into files |
| ICAP_PLANARCHUNKY | Color data format - Planar or Chunky |
| Compression | |
| ICAP_BITORDERCODES | CCITT Compression |
| ICAP_CCITTKFACTOR | CCITT Compression |
| ICAP_COMPRESSION | Compression method for Buffered Memory Transfers |
| ICAP_JPEGPIXELTYPE | JPEG Compression |
| ICAP_JPEGQUALITY | JPEG quality |
| ICAP_JPEGSUBSAMPLING | JPEG subsampling |
| ICAP_PIXELFLAVORCODES | CCITT Compression |
| ICAP_TIMEFILL | CCITT Compression |
| Device Parameters | |
| CAP_DEVICEONLINE | Determines if hardware is on and ready |
| CAP_DEVICETIMEDATE | Date and time of a device’s clock. |
| CAP_SERIALNUMBER | The serial number of the currently selected source device. |
| ICAP_MINIMUMHEIGHT | Allows the source to define the minimum height (Y-axis) that the source can acquire. |
| ICAP_MINIMUMWIDTH | Allows the source to define the minimum width (X-axis) that the source can acquire. |
| ICAP_EXPOSURETIME | Exposure time used to capture the image, in seconds |
| ICAP_FLASHUSED | For devices that support a flash, MSG_SET selects the flash to be used; MSG_GET reports the current setting. |
| ICAP_IMAGEFILTER | For devices that support image filtering, selects the algorithm to be used. |
| ICAP_LAMPSTATE | Is the lamp on? |
| ICAP_LIGHTPATH | Image was captured transmissively or reflectively |
| ICAP_LIGHTSOURCE | Describes the color characteristic of the light source used to acquire the image |
| ICAP_NOISEFILTER | For devices that support noise filtering, selects the algorithm to be used. |
| ICAP_OVERSCAN | For devices that support overscanning, controls whether additional rows or columns are appended to the image. |
| ICAP_PHYSICALHEIGHT | Maximum height Source can acquire (in ICAP_UNITS ) |
| ICAP_PHYSICALWIDTH | Maximum width Source can acquire (in ICAP_UNITS ) |
| ICAP_UNITS | Unit of measure (inches, centimeters, etc.) |
| ICAP_ZOOMFACTOR | With MSG_GET , returns all camera supported lens zooming range. |
| Doublefeed Detection | |
| CAP_DOUBLEFEEDDETECTION | Control DFD functionality |
| CAP_DOUBLEFEEDDETECTIONLENGTH | Set the minimum length |
| CAP_DOUBLEFEEDDETECTIONSENSITIVITY | Set detector sensitivity |
| CAP_DOUBLEFEEDDETECTIONRESPONSE | Describe Source behavior in case of DFD |
| Imprinter/Endorser Functionality | |
| CAP_ENDORSER | Allows the application to specify the starting endorser / imprinter number. |
| CAP_PRINTER | MSG_GET returns current list of available printer devices; MSG_SET selects the device for negotiation. |
| CAP_PRINTERCHARROTATION | Orientation of each character in the font |
| CAP_PRINTERENABLED | Turns the current CAP_PRINTER device on or off. |
| CAP_PRINTERFONTSTYLE | Style (ex: bold, italic…) |
| CAP_PRINTERINDEX | Starting number for the CAP_PRINTER device. |
| CAP_PRINTERINDEXLEADCHAR | Lead character for padding |
| CAP_PRINTERINDEXMAXVALUE | Maximum allowed printer index value |
| CAP_PRINTERINDEXNUMDIGITS | Maximum allowed digits in printer index value |
| CAP_PRINTERINDEXSTEP | Increment between printer index values |
| CAP_PRINTERINDEXTRIGGER | Triggers for incrementing the printer index value |
| CAP_PRINTERMODE | Specifies appropriate current CAP_PRINTER device mode. |
| CAP_PRINTERSTRING | String(s) to be used in the string component when CAP_PRINTER device is enabled. |
| CAP_PRINTERSTRINGPREVIEW | Preview of what a printer string will look like |
| CAP_PRINTERSUFFIX | String to be used as current CAP_PRINTER device’s suffix. |
| CAP_PRINTERVERTICALOFFSET | Y-Offset for current CAP_PRINTER device |
| Image Addressing | |
| CAP_IMAGEADDRESSENABLED | Turns image addressing on or off |
| CAP_IAFIELDA_LEVEL | Sets the image addressing level of this field (a scanner can support up to five fields, listed CAP_IAFIELDA_ * through CAP_IAFIELDE_ *) |
| CAP_IAFIELDA_PRINTFORMAT | Selects the formatting for printing and reporting the image address |
| CAP_IAFIELDA_VALUE | The image address of the next page to be scanned when scanning starts |
| CAP_IAFIELDA_LASTPAGE | The image address of the last scanned page |
| Image Information | |
| CAP_AUTHOR | Author of acquired image (may include a copyright string) |
| CAP_CAPTION | General note about acquired image |
| CAP_TIMEDATE | Date and Time the image was acquired (entered State 7) |
| ICAP_EXTIMAGEINFO | Allows the application to query the data source to see if it supports the new operation triplet DG_IMAGE / DAT_EXTIMAGEINFO / MSG_GET . |
| ICAP_SUPPORTEDEXTIMAGEINFO | Lists all of the information that the Source is capable of returning from a call to DAT_EXTIMAGEINFO . |
| Image Parameters for Acquire | |
| CAP_THUMBNAILSENABLED | Allows an application to request the delivery of thumbnail representations for the set of images that are to be delivered. |
| ICAP_AUTOBRIGHT | Enable Source’s Auto-brightness function |
| ICAP_BRIGHTNESS | Source brightness values |
| ICAP_CONTRAST | Source contrast values |
| ICAP_HIGHLIGHT | Lightest highlight, values lighter than this value will be set to this value |
| ICAP_IMAGEDATASET | Gets or sets the image indices that will be delivered during the standard image transfer done in States 6 and 7. |
| ICAP_MIRROR | Source can, or should, mirror image. |
| ICAP_ORIENTATION | Defines which edge of the paper is the top: Portrait or Landscape |
| ICAP_ROTATION | Source can, or should, rotate image this number of degrees |
| ICAP_SHADOW | Darkest shadow, values darker than this value will be set to this value |
| ICAP_XSCALING | Source Scaling value (1.0 = 100%) for x-axis |
| ICAP_YSCALING | Source Scaling value (1.0 = 100%) for y-axis |
| Image Type | |
| ICAP_BITDEPTH | Pixel bit depth for Current value of ICAP_PIXELTYPE |
| ICAP_BITDEPTHREDUCTION | Allows a choice of the reduction method for bit depth loss |
| ICAP_BITORDER | Specifies how the bytes in an image are filled by the Source |
| ICAP_CUSTHALFTONE | Square-cell halftone (dithering) matrix to be used |
| ICAP_HALFTONES | Source halftone patterns |
| ICAP_PIXELFLAVOR | Sense of the pixel whose numeric value is zero |
| ICAP_PIXELTYPE | The type of pixel data (B/W, gray, color, etc.) |
| ICAP_THRESHOLD | Specifies the dividing line between black and white values |
| Language Support | |
| CAP_LANGUAGE | Allows application and source to identify which languages they have in common. |
| MICR | |
| CAP_MICRENABLED | Enables actions needed to support check scanning. |
| Pages | |
| CAP_SEGMENTED | Describes the segmentation setting for captured images |
| ICAP_FRAMES | Size and location of frames on page |
| ICAP_MAXFRAMES | Maximum number of frames possible per page |
| ICAP_SUPPORTEDSIZES | Fixed frame sizes for typical page sizes |
| Paper Handling | |
| CAP_AUTOFEED | MSG_SET to TRUE to enable Source’s automatic feeding |
| CAP_CLEARPAGE | MSG_SET to TRUE to eject current page and leave acquire area empty |
| CAP_DUPLEX | Indicates whether the scanner supports duplex. |
| CAP_DUPLEXENABLED | Enables the user to set the duplex option to be TRUE or FALSE . |
| CAP_FEEDERALIGNMENT | Indicates the alignment of the document feeder. |
| CAP_FEEDERENABLED | If TRUE , Source’s feeder is available |
| CAP_FEEDERLOADED | If TRUE , Source has documents loaded in feeder ( MSG_GET only) |
| CAP_FEEDERORDER | Specifies whether feeder starts with top of first or last page. |
| CAP_FEEDERPOCKET | Report what pockets are available as paper leaves a device. |
| CAP_FEEDERPREP | Improve the movement of paper through a scanner ADF. |
| CAP_FEEDPAGE | MSG_SET to TRUE to eject current page and feed next page |
| CAP_PAPERDETECTABLE | Determines whether source can detect documents on the ADF or flatbed. |
| CAP_PAPERHANDLING | Control paper handling |
| CAP_REACQUIREALLOWED | Capable of acquring muliple images of the same page wihtout changing the physical registraion of that page. |
| CAP_REWINDPAGE | MSG_SET to TRUE to do a reverse feed |
| ICAP_FEEDERTYPE | Allows application to set scan parameters depending on the type of feeder being used. |
| Patch Code Detection | |
| ICAP_PATCHCODEDETECTIONENABLED | Turns patch code detection on and off. |
| ICAP_SUPPORTEDPATCHCODETYPES | List of patch code types that can be detected by current data source. |
| ICAP_PATCHCODEMAXSEARCHPRIORITIES | Maximum number of search priorities. |
| ICAP_PATCHCODESEARCHPRIORITIES | List of patch code types dictating the order in which patch codes will be sought. |
| ICAP_PATCHCODESEARCHMODE | Restricts patch code searching to certain orientations, or prioritizes one orientation over another. |
| ICAP_PATCHCODEMAXRETRIES | Restricts the number of times a search will be retried if none are found on a page. |
| ICAP_PATCHCODETIMEOUT | Restricts total time for searching for a patch code on a page. |
| Power Monitoring | |
| CAP_BATTERYMINUTES | The minutes of battery power remaining on a device. |
| CAP_BATTERYPERCENTAGE | With MSG_GET , indicates battery power status. |
| CAP_POWERSAVETIME | With MSG_SET , sets the camera power down timer in seconds; with MSG_GET , returns the current setting of the power down time. |
| CAP_POWERSUPPLY | MSG_GET reports the kinds of power available; MSG_GETCURRENT reports the current power supply to use. |
| Resolution | |
| ICAP_XNATIVERESOLUTION | Native optical resolution of device for x-axis |
| ICAP_XRESOLUTION | Current/Available optical resolutions for x-axis |
| ICAP_YNATIVERESOLUTION | Native optical resolution of device for y-axis |
| ICAP_YRESOLUTION | Current/Available optical resolutions for y-axis |
| Transfers | |
| CAP_JOBCONTROL | Allows multiple jobs in batch mode. |
| CAP_SHEETCOUNT | Number of sheets the application is willing to accept this session (valid when CAP_XFERCOUNT is -1) |
| CAP_XFERCOUNT | Number of images the application is willing to accept this session |
| ICAP_COMPRESSION | Buffered Memory transfer compression schemes |
| ICAP_IMAGEFILEFORMAT | File formats for file transfers |
| ICAP_TILES | Tiled image data |
| ICAP_UNDEFINEDIMAGESIZE | The application will accept undefined image size |
| ICAP_XFERMECH | Transfer mechanism - used to learn options and set-up for upcoming transfer |
| User Interface | |
| CAP_CAMERAPREVIEWUI | Queries the source for UI support for preview mode. |
| CAP_CUSTOMDSDATA | Allows the application to query the data source to see if it supports the new operation triplets DG_CONTROL / DAT_CUSTOMDSDATA / MSG_GET and DG_CONTROL / DAT_CUSTOMDSDATA / MSG_SET . |
| CAP_CUSTOMINTERFACEGUID | Uniquely identifies an interface for a Data Source. |
| CAP_ENABLEDSUIONLY | Queries an application to see if it implements the new user interface settings dialog. |
| CAP_INDICATORS | Use the Source’s progress indicator? (valid only when ShowUI== FALSE ) |
| CAP_INDICATORSMODE | List of messages types that can be display if ICAP_INDICATORS is TRUE |
| CAP_UICONTROLLABLE | Indicates that Source supports acquisitions with UI disabled |
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