Wrapper system for interfacing an object-oriented application to a procedural operating system

An apparatus for enabling an object-oriented application to access a procedural operating system including procedural functions saved as executable program logic which are called to access services provided by said procedural operating system, comprising:

• (a) a computer;
• (b) a memory component in said computer;
• (c) a code library, stored in the memory component, comprising:
• in said memory component in said computer;
• an object-oriented class library means in said memory component and having object classes with member functions for invoking said executable program logic;
• and
• (d) object-oriented operating system means, in said computer, for processing object-oriented statements by inserting into said object-oriented application a reference to said object-oriented class library means so that the application may instantiate objects from said object-oriented class library means and thereafter access the member functions in the instantiated objects to invoke executable program logic which corresponds to said object-oriented statements so as to interface said procedural operating system with said object-oriented application and thus service a request for operating system services by the object-oriented application during runtime execution of the application.

An apparatus for enabling an object-oriented application to access operating system services in an object-oriented manner on a computer system having a procedural operating system which provides operating system services in response to procedure invocations, the apparatus comprising:

• (a) a computer;
• (b) a memory, controlled by the computer, having therein an object-oriented class library comprising a set of system service classes, wherein each system service class is directed to a particular operating system service and wherein each class has a member function which includes a procedure invocation to a corresponding system service of the procedural operating system;
• and
• (c) loader means operable in response to a request from the application for providing to the object-oriented application a reference pointing to the set of system service classes so that the application may create operating system objects from the set of system service classes;
• wherein the application may request an operating system service by creating an operating system object from one of the set of system service classes and by invoking the member function therefrom, which includes a procedure invocation of a corresponding system service of the procedural operating system.