WebVerifyDataDigest Function

Action

Checks whether the Internet traffic that Silk Performer receives differs from the traffic that the Recorder captured during an earlier recording session. As the Recorder does, Silk Performer generates a digest containing information about the occurrence of each character, and compares the results with the digest generated by the Recorder. Using this function, it is possible to check whether Silk Performer receives the same data as the client application did during recording.

When verifying/parsing an HTML page that consists of multiple frames (HTML documents), you can specify which frame document to verify/parse by specifying the nDocNum parameter. By default (1) the top document (e.g. a frameset) is scanned. This applies to HTML pages that are retrieved through a page-level command like WebPageUrl or WebPageLink.

It is important to know that all parsing and verification functions must be specified before the Web API call for which the response data should be parsed/verified. You can specify multiple parse/verification functions before a Web API call. The order of the parse/verification functions is not relevant (Exception: WebParseDataBound and WebVerifyDataBound using the flag WEB_FLAG_SYNCHRON).

Include file

WebAPI.bdh

Syntax

WebVerifyDataDigest( in  sDigest     : string,
                     in  nDigestLen  : number optional,
                     in  nDifference : number optional,
                     in  nOptions    : number optional,
                     in  nDocNum     : number optional,
                     in  nSeverity   : number optional := SEVERITY_ERROR,
                     out nActDiff    : number optional) : boolean;

Return value

• true if the parsing modifier was created successfully.

• false otherwise.