Implement interface design using ATL Techniques

A simple example is provided to illustrate the design concept.

Interface:

Iplatform: iunknown

Iview: iplatform

Ipicview: iview

---------------------------------

Icontorl: iplatform

Itoolbarctl: icontorl

========================================================

Implementation:

//////////////////////////////////////// /////////////////////////////////////
// Iplatformimpl
Template <class T>
Class atl_no_vtable iplatformimpl:
Public t
{
Public:

XXXX // iplatform Method

}

//////////////////////////////////////// /////////////////////////////////////
// Iviewimpl
Template <class T, Class I>
Class atl_no_vtable iviewimpl:
Public t,
Public I

{
Begin_msg_map (iviewimpl)
Message_handler (wm_erasebkgnd, onerasebkgnd)
End_msg_map ()
 
 
Public:
Declare_wnd_class ("platform_view ")
Yyyy // iview Method

}

//////////////////////////////////////// //////////////////////////////////////// //

Class cpicview:
Public iviewimpl <csf-wimpl <cpicview>, iplatformimpl <ipicview>,
Public ccomobjectroot,
Public ccomcoclass <cpicview>,