Call to EVWEB2.Search.step returning invalid values in web API

Affected Versions

exacqVision web API 7.5.18

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Description

JavaScript API calls to EVWEB2.Search.step() return NaN instead of the actual frame number.

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Workaround

– Open C:\Program Files (x86)\exacqVision\WebService\Apache\htdocs\api-v2.js or /var/www/api-v2.js in a text editor

– Replace the string “var newFrame=parseInt(data,10)” with “var newFrame=parseInt(data.frame,10)”

– Save the file.

Or, install development build 7.7.19 of the web API

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Resolution

Update to exacqVision web API 7.8 or higher