vs 2008 and Icopy

[aurelcly]

Good afternoon I currently write a IcopyHook shell using visual studio 2008 and atl I have this compile error: Error 1 error C2259: 'ATL::CComObject<Base>' : cannot instantiate abstract class c:\program files\microsoft visual studio 9.0\vc\atlmfc\include\atlcom.h 1801 this is a piece of code I use to do so:

// MyHook.h : Declaration of the CMyHook

#ifndef __MYHOOK_H_
#define __MYHOOK_H_

#include "resource.h" // main symbols

/////////////////////////////////////////////////////////////////////////////
// CMyHook
class ATL_NO_VTABLE CMyHook :
public CComObjectRootEx<CComSingleThreadModel>,
public CComCoClass<CMyHook, &CLSID_MyHook>,
public ICopyHook, // ICopyHook interface.
public IDispatchImpl<IMyHook, &IID_IMyHook, &LIBID_COPYHOOKLib>
{
public:
CMyHook() //_ATL_DEBUG_ADDREF_RELEASE_IMPL
{
}

/* //Ansi Version.
STDMETHOD_(UINT,CopyCallback) (HWND hwnd, UINT wFunc, UINT wFlags, LPCSTR pszSrcFile, DWORD dwSrcAttribs,
LPCSTR pszDestFile, DWORD dwDestAttribs);
*/
//Unicode Version.
STDMETHOD_(UINT,CopyCallback) (HWND hwnd, UINT wFunc, UINT wFlags, LPCWSTR pszSrcFile, DWORD dwSrcAttribs,
LPCWSTR pszDestFile, DWORD dwDestAttribs);

DECLARE_REGISTRY_RESOURCEID(IDR_MYHOOK)

DECLARE_PROTECT_FINAL_CONSTRUCT()

BEGIN_COM_MAP(CMyHook)
COM_INTERFACE_ENTRY_IID(IID_IShellCopyHook , CMyHook)
COM_INTERFACE_ENTRY(IMyHook)
COM_INTERFACE_ENTRY(IDispatch)
END_COM_MAP()

};

#endif //__MYHOOK_H_

// CopyHook.cpp : Implementation of DLL Exports.

// Note: Proxy/Stub Information
// To build a separate proxy/stub DLL,
// run nmake -f CopyHookps.mk in the project directory.

#include "stdafx.h"
#include "resource.h"
#include <initguid.h>
#include "CopyHook.h"

#include "CopyHook_i.c"
#include "MyHook.h"

CComModule _Module;

BEGIN_OBJECT_MAP(ObjectMap)
OBJECT_ENTRY(CLSID_MyHook, CMyHook)
END_OBJECT_MAP()

/////////////////////////////////////////////////////////////////////////////
// DLL Entry Point

extern "C"
BOOL WINAPI DllMain(HINSTANCE hInstance, DWORD dwReason, LPVOID /*lpReserved*/)
{
if (dwReason == DLL_PROCESS_ATTACH)
{
_Module.Init(ObjectMap, hInstance, &LIBID_COPYHOOKLib);
DisableThreadLibraryCalls(hInstance);
}
else if (dwReason == DLL_PROCESS_DETACH)
_Module.Term();
return TRUE; // ok
}

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

[Stuart Dootson]

Are you sure you're creating a wide version of ICopyHook? Why not use ICopyHookW and IID_ICopyHookW to make 100% sure.

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p CodeProject MVP for 2010 - who'd'a thunk it!