This method opens a session with the ScanTools Plus Link runtime. The method validates the license key and returns immediately. The specified metadata is downloaded as necessary in the background. At the same time, the method also looks for the scanner connected to the PC: you can monitor the ScannerSearch, ScannerFound and ScannerSearchComplete events and update the User Interface. It finally invokes the OpenCompleted callback at which point, your solution can determine the result of the download operation. You can also acquire a reference to the scanning engine and start scanning, provided a scanner was configured.
The OpenAsync method is designed to be called anytime. Calling it while the web page is loading can potentially provide the best user experience. By the time the page is loaded, the data session is ready to scan.
OpenAsync (clientContext, clientCallback)
Populate typical members as follows:
See ClientContext Object for more information.
This object has handlers for the callbacks/events raised by DataService and ScanningManager. Handling DataService.OpenCompleted is required: it is the only way to determine the result of calling OpenAsync.
For a scanning session, you need to handle at least one ScanningManager event so that you can take receipt of the scanned data.
If you are programming a correction-only web session, you do not need to access or handle any events from ScanningManager.
See ClientCallback Object for more information
License not specified in the client context
License is invalid: URL services not licensed or browser hosted services not licensed
OpenCompleted member is missing in the client callback object
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