I know a company that lost its source code to a VB6 DLL that exposes COM. Is it possible to wrap, or orverride properties, methods, etc of this object to be more modern?
What technology should I use? What approaches should I take?
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I know a company that lost its source code to a VB6 DLL that exposes COM. Is it possible to wrap, or orverride properties, methods, etc of this object to be more modern?
What technology should I use? What approaches should I take?
I would wrap it in a new C# class and expose only minimum functionality to the calling code (probably via an interface). This way, some functionally can be gradually rewritten in C# without affecting the calling client.
And yes, utilize interop to create a runtime-callable wrapper.
Calling .NET code -> your new .NET class wrapper -> the COM dll via the runtime-callable wrapper.
Now even though you are not literally overriding functions or properties… you can still accomplish this via your wrapper class.