The Interface Section

The interface section of a unit begins with the reserved word interface and continues until the beginning of the implementation section. The interface section declares constants, types, variables, procedures, and functions that are available to clients. That is, to other units or programs that wish to use elements from this unit. These entities are called public because code in other units can access them as if they were declared in the unit itself.

The interface declaration of a procedure or function includes only the routine's signature. That is, the routine's name, parameters, and return type (for functions). The block containing executable code for the procedure or function follows in the implementation section. Thus procedure and function declarations in the interface section work like forward declarations.

The interface declaration for a class must include declarations for all class members: fields, properties, procedures, and functions.

The interface section can include its own uses clause, which must appear immediately after the keyword interface.

Project Management Made Easy

Project Management Made Easy

What you need to know about… Project Management Made Easy! Project management consists of more than just a large building project and can encompass small projects as well. No matter what the size of your project, you need to have some sort of project management. How you manage your project has everything to do with its outcome.

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