- inline bool operator == (const wxBrush& brush) { return m_refData == brush.m_refData; }
- inline bool operator != (const wxBrush& brush) { return m_refData != brush.m_refData; }
+ inline bool operator == (const wxBrush& brush) const { return m_refData == brush.m_refData; }
+ inline bool operator != (const wxBrush& brush) const { return m_refData != brush.m_refData; }