Cloning an Object?

[TheVampire]

I want to create a clone of an object, for instance, a class that has 30 properties. Am I forced to write a clone function for that class that creates a new class object, sets all of the properties and then returns the new class object to the caller. Or is there some way, perhaps using copymemory API, that I can write a shortcut that will create a clone of any class? I know pure VB6 does not have a way to do it, and that ByVal ( instead of ByRef ) does not work on objects, but I was hoping that the API would allow me to do this.

Thanks,

Robert

 

[TheVampire]

You ever have a problem that you can't figure out, and right after you finally ask a question about it the answer wacks you in the head?

Well, in this case the answer is the PropertyBag. Save the first class object into a PropertyBag, and then create a new instance of the object and set it with the PropertyBag that was saved from the first one. And you have a Clone!

Now I just have to hope that the government doesn't make this kind of cloning illegal...

Robert

 

[strongm]

But be aware that cloning objects can be fraught with unforeseen perils - particularly if an object holds a public or private reference to another object; do you clone the referenced object as well? Or do you create a new instance of the referenced object?

 

[TheVampire]

Nice to see you are keeping an eye on us, even while sitting in the sun on a beach.

Indeed, you would have to watch out for such perils. In my case, some of the objects I am cloning do indeed have references to other objects. The cloning does not create a new instance in my case, but adds to the counter of references to that object.

I'm being very careful to clean up after myself when I do this cloning.

Robert

 

[mmilan]

"I'm being very careful to clean up after myself when I do this cloning." - always a good idea. Bury the evidence...