AOO410/main/dtrans/source/win32/dnd/idroptarget.hxx

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 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
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 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
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#ifndef _IDROPTARGET_HXX_
#define _IDROPTARGET_HXX_ 

#include "target.hxx"

class IDropTargetImpl: public IDropTarget
{
    LONG m_nRefCount;
    // Calls to IDropTarget functions are delegated to a DropTarget.
    DropTarget& m_rDropTarget;

    virtual ~IDropTargetImpl(); // delete is only called by IUnknown::Release 
    IDropTargetImpl( const IDropTargetImpl& );
    IDropTargetImpl& operator=( const IDropTargetImpl& );
public:
    IDropTargetImpl( DropTarget& pTarget);

   	// IDropTarget
	virtual HRESULT STDMETHODCALLTYPE QueryInterface( 
            /* [in] */ REFIID riid,
            /* [iid_is][out] */ void __RPC_FAR *__RPC_FAR *ppvObject);
        
    virtual ULONG STDMETHODCALLTYPE AddRef( );
        
    virtual ULONG STDMETHODCALLTYPE Release( );

	virtual HRESULT STDMETHODCALLTYPE DragEnter( 
            /* [unique][in] */ IDataObject __RPC_FAR *pDataObj,
            /* [in] */ DWORD grfKeyState,
            /* [in] */ POINTL pt,
            /* [out][in] */ DWORD __RPC_FAR *pdwEffect);
        
	virtual HRESULT STDMETHODCALLTYPE DragOver( 
            /* [in] */ DWORD grfKeyState,
            /* [in] */ POINTL pt,
            /* [out][in] */ DWORD __RPC_FAR *pdwEffect);
        
	virtual HRESULT STDMETHODCALLTYPE DragLeave( ) ;
        
    virtual HRESULT STDMETHODCALLTYPE Drop( 
            /* [unique][in] */ IDataObject __RPC_FAR *pDataObj,
            /* [in] */ DWORD grfKeyState,
            /* [in] */ POINTL pt,
            /* [out][in] */ DWORD __RPC_FAR *pdwEffect);


};
#endif