/// Get the buffer bitmap
const wxBitmap& GetBufferBitmap() const { return m_bufferBitmap; }
wxBitmap& GetBufferBitmap() { return m_bufferBitmap; }
/// Get the buffer bitmap
const wxBitmap& GetBufferBitmap() const { return m_bufferBitmap; }
wxBitmap& GetBufferBitmap() { return m_bufferBitmap; }