The Monitor Code Resource
A monitor code resource contains the code that carries out the functions of a monitors extension. A monitor code resource is a resource of type'mntr'and must have a resource ID of -4096. This resource must begin with a monitors extension function that you provide. The Monitors control panel calls your monitors extension function with requests to perform an action or handle an event. A monitors extension should return as a function result a handle to memory that the function allocated or an error code. In MPW, you can set the code resource type to'mntr'when you link the program.