41. An apparatus for providing an object-oriented interface to a procedural operating system, said system providing services including procedural functions saved as executable program logic that are called to access said services, said apparatus comprising: (a) a computer; (b) a memory component in said computer; and (c) a code library, stored in said memory component, comprising means for storing said executable program logic in an object-oriented class library; means for interfacing to an object-oriented application; and said object-oriented class library comprising object-oriented, scheduling classes, said scheduling classes comprising methods for accessing said services during run-time execution of said application in said computer, said scheduling classes having statements, said statements insertable into said application to enable said application to access said services.
41. An apparatus for providing an object-oriented interface to a procedural operating system, said system providing services including procedural functions saved as executable program logic that are called to access said services, said apparatus comprising: (a) a computer; (b) a memory component in said computer; and (c) a code library, stored in said memory component, comprising means for storing said executable program logic in an object-oriented class library; means for interfacing to an object-oriented application; and said object-oriented class library comprising object-oriented, scheduling classes, said scheduling classes comprising methods for accessing said services during run-time execution of said application in said computer, said scheduling classes having statements, said statements insertable into said application to enable said application to access said services. 42. The apparatus of claim 41 in which an actual scheduling priority, a default scheduling priority, and a maximum scheduling priority are associated with said application, said scheduling classes defining one or more scheduling priorities, said object-oriented class library including methods for setting each of said actual, default, and maximum scheduling priorities of said application to one of said scheduling priorities.