Writes the installID into a QLM cookie on the end user system. To read keys, use the ReadInstallID API.
Note that to call this function, you must initialize the QlmAnalytics object with the following properties:
- GUID (persistence key)
bool WriteInstallID(string installID, out string errorMessage)
|installID||string||unique identifier of this installation, returned by a call to AddInstall|
|errorMessage||string||returned error message containing details about the failure, if any.|
|Boolean||true if the operation was successful; otherwise, false.|