uwp Device Families Detect if an API contract is supported
Example
Depending on the device/release version of the system, some API may not be available. You can check which contract is supported by using ApiInformation.IsApiContractPresent()
For example, this will return true on phone devices and false on the others
ApiInformation.IsApiContractPresent(typeof(CallsPhoneContract).FullName, 1)
The contract where an API belong is available at the bottom the API page on the MSDN or the global list is available from the API contract page.
