- inline wxMetafile& operator = (const wxMetafile& metafile) { if (*this == metafile) return (*this); Ref(metafile); return *this; }
- inline bool operator == (const wxMetafile& metafile) { return m_refData == metafile.m_refData; }
- inline bool operator != (const wxMetafile& metafile) { return m_refData != metafile.m_refData; }
+ inline bool operator == (const wxMetafile& metafile) const { return m_refData == metafile.m_refData; }
+ inline bool operator != (const wxMetafile& metafile) const { return m_refData != metafile.m_refData; }