C#, call dll methods, activex object

Hi all,

i'm a little lost at the moment. I was working on a java project, and then i had to make use of a dll (which was not supported by java) to communicate with some hardware.

i'm not sure i'm making much sense here but i'll try

here's the description i got from the manufacturer:

"
our product is a COM/OLE/ActiveX object. It contains an interface definition for the methods that can be invoked on it, what data exchange is available through properties and also what events can be triggered and subscribed to.
To be very specific, our product is best described as an ActiveX Control, implemented as an Automation Server (the BaCtrl interface is of type IDispatch).
Supported environments: .NET (through the provided wrapper Interop.BaLib.dll).
"

the main file is called ba.dll (i've installed the dll file with regsvr32)

i've googled a lot, but i just lack basic knowledge about this stuff.

I know for example that there's a method Open(). How would i program to call a method from an Activex object?

any hints would be greatly appreciated!

thanks

im a little confused. you have c# in the title but mention java. are you wanting to use the dll through java or c#?