I'm trying to port some code from Delphi to C++ to compile it as a com object.

Now I'm not that experience with C++ as a whole so this is probably a fairly easy answer but I'm stuck.

Basicly what I am trying to do is create 2 controls. They are both within the one project.

The first one's class name is: CSCIVBX

The second one's class name is: CSCIHighlighter.

(It's actually a start on an ATL ActiveX wrapper for scintilla).

The intention was to have the CSCIHighlighter be a one instance kind of control. You initialize it, load the files, use it to change options and settings, etc. and it will then have a couple functions called that will set the neccisary properties to the CSCIVBX class.

The problem I'm having is this. I added a method to CSCIHighlighters called

SetStyles(CSCIVBX Scintilla, BSTR LangName)

I was thinking you could define a variable as a class. What I end up getting is this:
C:\Documents and Settings\Stewart\Desktop\SCIVB\SCIHighlighter.h(87) : error C2259: 'CSCIVBX' : cannot instantiate abstract class due to following members:
C:\Documents and Settings\Stewart\Desktop\SCIVB\SCIVBX.h(16) : see declaration of 'CSCIVBX'
C:\Documents and Settings\Stewart\Desktop\SCIVB\SCIHighlighter.h(87) : warning C4259: 'long __stdcall CSCIVBX::QueryInterface(const struct _GUID &,void ** )' : pure virtual function was not defined
C:\Documents and Settings\Stewart\Desktop\SCIVB\SCIVBX.h(68) : see declaration of 'QueryInterface'
C:\Documents and Settings\Stewart\Desktop\SCIVB\SCIHighlighter.h(87) : warning C4259: 'unsigned long __stdcall CSCIVBX::AddRef(void)' : pure virtual function was not defined
C:\Documents and Settings\Stewart\Desktop\SCIVB\SCIVBX.h(68) : see declaration of 'AddRef'
===================================================================

So as it stands I'm stuck on how I would do this. I basicly need a variable
that is defined as the CSCIVBX class so it can make calls to it's publicly exposed methods.

Any help at all is greatly appreciated. Thanks a lot :)

Stewart