From Xojo Documentation

Property (As String )
aWebMapLocation.APIKey = newStringValue
StringValue = aWebMapLocation.APIKey

New in 2013r1

Supported for all project types and targets.

Map provider API/Developer Key.


For users that are doing large numbers of geocode requests, Google limits the number of requests per day. After the limit is reached, it simply fails with zero results. Use this property to enter your API key so you can reduce or eliminate this restriction.