TargetIdiom
Indicates the type of device Forms is working on.
Desktop = 3
(Unused) Indicates that Forms is running on a computer.
Phone = 1
Indicates that Forms is running on a Phone, or a device similar in shape and capabilities.
Tablet = 2
Indicates that Forms is running on a Tablet.
Unsupported = 0
(Unused) Indicates that Forms is running on an unsupported device.