DPXUru ActiveX Fmd data structure. Underlying Fmd object. Byte array as ArrayList. Format (i.e., ANSI, ISO, ...) .NET Wrapper version the fingerprint data originated from. Width. View count. Height. Capture equipment ids. Capture equipment comp. Constructor for ActiveX Fmd. Serialize XFmd to XML string. Deserialize XML string to XFmd. XML string to deserialize ActiveX Fmv object. Underlying Fmv object. Byte array as ArrayList. Finger position. Minutiae count. Quality. Constructor for ActiveX Fmv. ActiveX Fid data structure. Fiv view list as ArrayList. Underlying Fid object. Byte array as ArrayList. Format (i.e., ANSI, ISO, ...) .NET Wrapper version the fingerprint data originated from. CBEFF Id. Resolution. Acquisition level. Bits per pixel. Capture device id. Compression. Finger count. Image resolution. Scale units. Scan resolution. Constructor for ActiveX Fid object. Serialize XFid to XML string. Deserialize XML string to XFmd. XML string to deserialize ActiveX Fiv object. Underlying Fiv object. Byte array as ArrayList. Height. Width. Depth. Finger position. Impression type. View count. View number. Constructor for ActiveX Fiv object. FIV Convert Bitmap to Base-64 string. Requested size of image. greater or equal to 1 = original size, less than 1 = the image will be shrunken by this percentage ActiveX result and Fmd. Constructor. Non-Com object to wrap FMD result. Result code. ActiveX result and Fid. Constructor. FID. Result code. ActiveX conversion object. Converts an Fmd from any supported format to any other supported format. input Fmd input format output Fmd \return DP_SUCCESS: Fmd was converted; \return DP_INVALID_PARAMETER: One or more parameters passed are invalid; \return DP_FAILURE: Failed to convert Fmd. Converts legacy DigitalPersona image to the image in ANSI or ISO format. Fid to convert input resolution output format rotate the image \return DP_SUCCESS: Fid was created \return DP_FAILURE: Failed to create Fid Converts an Fid from any supported format to any other supported format. input Fmd input format output Fmd \return DP_SUCCESS: Fid was converted; \return DP_INVALID_PARAMETER: One or more parameters passed are invalid; \return DP_FAILURE: Failed to convert Fid. ActiveX feature extraction object. Extracts features and creates an Fmd from an ANSI or ISO image. This function works with Fids that have: - 8 bits per pixel - no padding - square pixels (dpi is the same for horizontal and vertical) FID to extract features Format of the FMD \return DP_SUCCESS: Fmd was created; \return DP_INVALID_PARAMETER: One or more parameters passed are invalid. \return DP_FAILURE: Failed to create Fmd. Extracts features and creates an FMD from a raw image. When you do a fingerprint capture, you can receive a raw image or a Fid. If you specify a raw image, you can then extract features into an Fmd using this function. The raw image is just a buffer of pixels. This function works with raw images that have: - 8 bits per pixel - no padding - square pixels (dpi is the same for horizontal and vertical) FID to extract features Format of the FMD \return DP_SUCCESS: Fmd was created; \return DP_INVALID_PARAMETER: One or more parameters passed are invalid. \return DP_FAILURE: Failed to create Fmd. ActiveX enrollment object. Constructor. Loads a set of FMDs in XML format. FMDs Load an FMD object. FMD Clear all loaded FMDs. Creates and returns enrollment FMD. Create an Fmd for an enrolled finger. The output Fmd is suitable for storing in a database of enrolled users. Some applications like voting, banking and law enforcement require that you check for duplicate fingerprints before storing a new fingerprint in the database. For ANSI/ISO formats, the enrollment Fmd is a standard Fmd (the same as an Fmd generated by the extraction function). Enrollment FMDs DP_SUCCESS: Fmd created; DP_MORE_DATA: Fmd created, but allocated memory is not sufficient. The required memory size is in the fmd_size; DP_INVALID_PARAMETER: One or more parameters passed are invalid; DP_FAILURE: Unknown error. ActiveX result and score. Constructor. Dissimilarity score. Result code. ActiveX result and indexes of matches. Constructor. Array of integer-pairs describing FMD and view of where matches exist. Result code. ActiveX comparison object. Constructor. Loads a set of FMDs in XML format. FMDs Loads an FMD. FMD Clear all loaded FMDs. Compares two fingerprints. Given two single views from two Fmds, this function returns a dissimilarity score indicating the quality of the match. The dissimilarity scores returned values are between: 0 (match), Max Integer Value (no match). Values close to 0 indicate very close matches, values closer to maxint indicate very poor matches. For a discussion of how to evaluate dissimilarity scores, as well as the statistical validity of the dissimilarity score and error rates, consult the Developer Guide. /// The Compare function returns DP_SUCCESS if it is able to compare the fingerprints successfully (i.e., the Fmds are valid and correctly formed). However that does not mean that the fingerprints matched. To check whether they matched, you must look at the dissimilarity score. First FMD Index of the view in the first FMD Second FMD Index of the view in the second FMD \return DP_SUCCESS: Comparison finished; \return DP_INVALID_PARAMETER: One or more parameters passed are invalid; \return DP_FAILURE: Unknown error. Compares a single fingerprint to an array of fingerprints. This function takes as inputs: - a single view in an Fmd - an array of Fmds (each Fmd can contain up to 16 views) to compare, all of the same format - the desired number of matches to return - the threshold for False Positive Identification Rate that is permitted This function compares a single view against an array of Fmds. Each time view has a score lower than the threshold, that view is marked as a possible candidate. Then when all possible candidates are identified (i.e., they meet the threshold), they are ranked by their score. Finally, the function returns as many candidates as requested, based on the candidates with the lowest dissimilarity score. For a discussion of setting the threshold as well as the statistical validity of the dissimilarity score and error rates, consult the Developer Guide. First FMD Index of the view in the first FMD Target threshold on degree of dissimilarity How many candidates to return \return DPFJ_SUCESS: Identification finished \return DP_INVALID_PARAMETER: One or more parameters passed are invalid; \return DP_FAILURE: Unknown error ActiveX reader object. Constructor that should only be used by ActiveX browser controls which require an empty constructor Only use for ActiveX in the browser. See samples for usage. ReaderX object whose capture you event this ReaderX objects should handle. For the purpose of allowing ReaderX objects instantiated in javascript to handle On_Captured events. Underlying Reader object. Reader status. Unique name of the reader. The reader's GUID. Can be used to uniquely identify the reader externally. Reader modality. Reader technology. Vendor name. Vendor id. Product name. Product id. Firmware version, including major, minor, and revision numbers. Hardware version, including major, minor, and revision numbers. Flag to show if reader detects a finger. Additional vendor-specific data which may be passed by the driver. Flag: reader can capture images. Flag: reader can stream images. Flag: reader can extract features from captured image and return fingerprint features data. Flag: reader can perform match one-to-one. Flag: reader can perform match one-to-many. Flag: reader has storage for fingerprint features data. Flag: power mode of the reader can be controlled. Flag: reader can be calibrated. Flag: can produce PIV compliant images. Available resolutions. Indicator Type. Opens a reader and populates ReaderCapabilities sub-class. \return DPFPDD_SUCCESS: Reader was successfullly opened; \return DPFPDD_E_FAILURE: Unexpected failure; \return DPFPDD_E_INVALID_DEVICE: No reader with this name found; \return DPFPDD_E_DEVICE_BUSY: Reader is already opened by the same or another process; \return DPFPDD_E_DEVICE_FAILURE: Failed to open the reader. Releases the reader. Calibrates the reader. This function calibrates a reader and blocks until the calibration is complete. It can take several seconds to calibrate for some devices. \return DPFPDD_SUCCESS: Calibration succeeded; \return DPFPDD_E_FAILURE: Unexpected failure; \return DPFPDD_E_INVALID_DEVICE: Invalid reader; \return DPFPDD_E_DEVICE_BUSY: Another operation is in progress; \return DPFPDD_E_DEVICE_FAILURE: Failed to calibrate, reader is not functioning properly. Populates the ReaderStatus sub-class. \return DPFPDD_SUCCESS: Reader status obtained; \return DPFPDD_E_FAILURE: Unexpected failure; \return DPFPDD_E_INVALID_DEVICE: Invalid reader; Resets the reader. This function performs a hardware reset on the reader. Hardware resets are typically needed only after a hardware problem (e.g., the reader is unplugged or receives an electrostatic shock). This function blocks until the reset is complete. \return DPFPDD_SUCCESS: Reset succeeded; \return DPFPDD_E_FAILURE: Unexpected failure; \return DPFPDD_E_INVALID_DEVICE: Invalid reader; \return DPFPDD_E_DEVICE_BUSY: Another operation is in progress; \return DPFPDD_E_DEVICE_FAILURE: Failed to reset, reader is not functioning properly. This function captures a fingerprint image from the opened reader device. This function signals the device that a fingerprint is expected and waits until a fingerprint is received. This function blocks until an image is captured, capture fails or timeout is expired. This function cannot be called in streaming mode. If memory is not sufficient for the image, then DP_E_MORE_DATA will be returned. Format of the image Processing of the image Timeout in milliseconds; -1 means no timeout (function will block until a fingerprint is captured or a cancel is caused) Resolution of the image Cancels pending capture. \return DPFPDD_SUCCESS: Capture canceled; \return DPFPDD_E_FAILURE: Unexpected failure; \return DPFPDD_E_INVALID_DEVICE: Invalid reader; \return DPFPDD_E_DEVICE_FAILURE: Failed to cancel capture, reader is not functioning properly. Takes an image from the stream. After the reader is put into streaming mode this function takes an image from the stream. After this function returns, the reader stays in the streaming mode. Frame selection, scoring or other image processing is not performed. If the memory is not sufficient for the image, then \return DPFPDD_E_MORE_DATA will be returned. For every image from the stream, the driver provides a score (in capture_result.score) and quality feedback (in capture_result.quailty). Format of the image Processing of the image Resolution of the image \return DPFPDD_SUCCESS: Image acquired from the stream. Extended result is in capture_result; \return DPFPDD_E_FAILURE: Unexpected failure; \return DPFPDD_E_INVALID_DEVICE: Invalid reader; \return DPFPDD_E_DEVICE_BUSY: Another operation is in progress; \return DPFPDD_E_MORE_DATA: Insufficient memory is allocated for the image_data, the required size is in the image_size; \return DPFPDD_E_INVALID_PARAMETER: Wrong data type or image format in the capture_parm; \return DPFPDD_E_DEVICE_FAILURE: Failed to acquire image from the stream, reader is not functioning properly. Puts reader into streaming mode. Not all readers support this mode. When the reader is in streaming mode, the application can only call GetStreamImage() to acquire images from the stream. \return DPFPDD_SUCCESS: Reader put into streaming mode; \return DPFPDD_E_FAILURE: Unexpected failure; \return DPFPDD_E_INVALID_DEVICE: Invalid reader; \return DPFPDD_E_INVALID_PARAMETER: Wrong data type or image format in the capture_parm; \return DPFPDD_E_DEVICE_BUSY: Another operation is in progress; \return DPFPDD_E_DEVICE_FAILURE: Failed to start streaming, reader is not functioning properly. Stops streaming mode \return DPFPDD_SUCCESS: Streaming was stopped; \return DPFPDD_E_FAILURE: Unexpected failure; \return DPFPDD_E_INVALID_DEVICE: Invalid reader; \return DPFPDD_E_DEVICE_FAILURE: Failed to stop streaming, reader is not functioning properly. ActiveX ReaderCollection object. Constructor to create the list of reader objects and initalize reader context. This method searches available readers and refreshes information about them. This method destroys reader collection and releases resources associated with the readers. ActiveX result, quality and FID. Constructor to create a container class for the result of a capture or streaming operation. Underyling CaptureResult object Image quality. Image score. Captured FID. Result code.