dtrans/source/win32/dnd/idroptarget.hxx

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  30 #ifndef _IDROPTARGET_HXX_
  31 #define _IDROPTARGET_HXX_
  32
  33 #include "target.hxx"
  34
  35 class IDropTargetImpl: public IDropTarget
  36 {
  37     LONG m_nRefCount;
  38     // Calls to IDropTarget functions are delegated to a DropTarget.
  39     DropTarget& m_rDropTarget;
  40
  41     virtual ~IDropTargetImpl(); // delete is only called by IUnknown::Release
  42     IDropTargetImpl( const IDropTargetImpl& );
  43     IDropTargetImpl& operator=( const IDropTargetImpl& );
  44 public:
  45     IDropTargetImpl( DropTarget& pTarget);
  46
  47        // IDropTarget
  48     virtual HRESULT STDMETHODCALLTYPE QueryInterface(
  49             /* [in] */ REFIID riid,
  50             /* [iid_is][out] */ void __RPC_FAR *__RPC_FAR *ppvObject);
  51
  52     virtual ULONG STDMETHODCALLTYPE AddRef( );
  53
  54     virtual ULONG STDMETHODCALLTYPE Release( );
  55
  56     virtual HRESULT STDMETHODCALLTYPE DragEnter(
  57             /* [unique][in] */ IDataObject __RPC_FAR *pDataObj,
  58             /* [in] */ DWORD grfKeyState,
  59             /* [in] */ POINTL pt,
  60             /* [out][in] */ DWORD __RPC_FAR *pdwEffect);
  61
  62     virtual HRESULT STDMETHODCALLTYPE DragOver(
  63             /* [in] */ DWORD grfKeyState,
  64             /* [in] */ POINTL pt,
  65             /* [out][in] */ DWORD __RPC_FAR *pdwEffect);
  66
  67     virtual HRESULT STDMETHODCALLTYPE DragLeave( ) ;
  68
  69     virtual HRESULT STDMETHODCALLTYPE Drop(
  70             /* [unique][in] */ IDataObject __RPC_FAR *pDataObj,
  71             /* [in] */ DWORD grfKeyState,
  72             /* [in] */ POINTL pt,
  73             /* [out][in] */ DWORD __RPC_FAR *pdwEffect);
  74
  75
  76 };
  77 #endif