Post: #1

Alright I'd like to discuss the differences in ID and DISPID.
There seems to be a lot of confusion in the forums of the properties and their use. Now this discussion will have meaning if the reader has a programming background else it will probably only confuse you.

It's my observation that DISPID has no OOP (object oriented programming) functionality. It only effects the appearance of the object.
Example-
make a shovel -> .add i_shovel
change it's appearance -> .set DISPID i_barrel
update to show change -> .update
Now the shovel appears as a barrel, but any and all queries on the object will display i_shovel properties.
So the shovel looks like a barrel but remains to be a shovel.
So queries on the shovel return shovel properties (though it looks like a barrel) and it sill behaves like a shovel.

Now ID seems to use basic inheritance (a shallow, single level is-a OOP principle). Meaning that by assigning an ID to an object, the object will now behave like the new ID. Meaning old object is-a new object. But seems to be restricted to a single level of heritance not multiple inheritance. Also it does not retain it's base class (as in normal OOP). So it's no longer the old object.
Example-
make a shovel -> .add i_shovel
change it's id -> .set ID i_dagger
update to show change -> .update
The shovel is in fact a dagger now with all the dagger properties.
That's because shovel is-a dagger now with everything relating to a dagger. All things shovel are gone.


Hope that helps!
Feel free to correct me here or add to this discussion!

Thanks
Capes