Implementing this protocol on your service plug-in's principal class indicates that your service supports one-to-one instant messaging If you implement this protocol, you must also include
IMServiceCapabilityInstantMessagingSupport as a value for the
IMServiceCapabilities key in the
Info.plist file of your service plug-in.
- macOS 10.10+
IMServiceApplicationInstantMessagingSupport are paired protocols. If your service plug-in's principal class implements the
IMServicePlugInInstantMessagingSupport protocol, the client object passed to your plug-in during initialization will implement the