+#ifdef wxHAS_CARET_USING_OVERLAYS
+ // the overlay for displaying the caret
+ wxOverlay m_overlay;
+#else
+ // the bitmap holding the part of window hidden by the caret when it was
+ // at (m_xOld, m_yOld)
+ wxBitmap m_bmpUnderCaret;
+ int m_xOld,
+ m_yOld;
+#endif
+