Interface Modifiers

An interface declaration may optionally include a sequence of interface modifiers.

interface-modifiers:

interface-modifier

interface-modifiers interface-modifier

interface-modifier:

Public

Friend

Partial

It is a compile error for the same modifier to appear multiple times in an interface declaration. The Public and Friend modifiers determine interface access level. Depending on the context, in which an interface is declared, only some of them can be used.

Example

//Interface available in this assembly
//and all assemblies where this assembly is referred to
Public Interface IMyInterface

End Interface;

//Interface available only in a given assembly
Friend Interface IMyInterface1

End Interface;

//Partial interface
Partial Interface IPart
    Sub Test1();
End Interface;
//Expanding partial interface
Partial Interface IPart
    Sub Test2();
End Interface;

//Partial interface implementation
Class UserObject: IPart
    Public Sub Test1();
    Begin

    End Sub;

    Public Sub Test2();
    Begin

    End Sub;
End Class;