http://code.google.com/p/rpcs3/source/detail?r=44

wxWidgets/include/wx/msw/ole/dataobj.h

@@ -0,0 +1,79 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        msw/ole/dataobj.h
+// Purpose:     declaration of the wxDataObject class
+// Author:      Vadim Zeitlin
+// Modified by:
+// Created:     10.05.98
+// RCS-ID:      $Id: dataobj.h 37406 2006-02-09 03:45:14Z VZ $
+// Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
+// Licence:     wxWindows licence
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef   _WX_MSW_OLE_DATAOBJ_H
+#define   _WX_MSW_OLE_DATAOBJ_H
+
+// ----------------------------------------------------------------------------
+// forward declarations
+// ----------------------------------------------------------------------------
+
+struct IDataObject;
+
+// ----------------------------------------------------------------------------
+// wxDataObject is a "smart" and polymorphic piece of data.
+// ----------------------------------------------------------------------------
+
+class WXDLLEXPORT wxDataObject : public wxDataObjectBase
+{
+public:
+    // ctor & dtor
+    wxDataObject();
+    virtual ~wxDataObject();
+
+    // retrieve IDataObject interface (for other OLE related classes)
+    IDataObject *GetInterface() const { return m_pIDataObject; }
+
+    // tell the object that it should be now owned by IDataObject - i.e. when
+    // it is deleted, it should delete us as well
+    void SetAutoDelete();
+
+    // return true if we support this format in "Get" direction
+    bool IsSupportedFormat(const wxDataFormat& format) const
+        { return wxDataObjectBase::IsSupported(format, Get); }
+
+    // if this method returns false, this wxDataObject will be copied to
+    // the clipboard with its size prepended to it, which is compatible with
+    // older wx versions
+    //
+    // if returns true, then this wxDataObject will be copied to the clipboard
+    // without any additional information and ::HeapSize() function will be used
+    // to get the size of that data
+    virtual bool NeedsVerbatimData(const wxDataFormat& WXUNUSED(format)) const
+    {
+        // return false from here only for compatibility with earlier wx versions
+        return true;
+    }
+
+    // function to return symbolic name of clipboard format (for debug messages)
+#ifdef __WXDEBUG__
+    static const wxChar *GetFormatName(wxDataFormat format);
+
+    #define wxGetFormatName(format) wxDataObject::GetFormatName(format)
+#else // !Debug
+    #define wxGetFormatName(format) _T("")
+#endif // Debug/!Debug
+    // they need to be accessed from wxIDataObject, so made them public,
+    // or wxIDataObject friend
+public:
+    virtual const void* GetSizeFromBuffer( const void* buffer, size_t* size,
+                                           const wxDataFormat& format );
+    virtual void* SetSizeInBuffer( void* buffer, size_t size,
+                                   const wxDataFormat& format );
+    virtual size_t GetBufferOffset( const wxDataFormat& format );
+
+private:
+    IDataObject *m_pIDataObject; // pointer to the COM interface
+
+    DECLARE_NO_COPY_CLASS(wxDataObject)
+};
+
+#endif  //_WX_MSW_OLE_DATAOBJ_H