+ int m_iLastView;
+ int m_iClientX; // size of client window
+ int m_iClientY;
+
+ Scanner& m_rScanner;
+ Projections& m_rProjections;
+ const Phantom& m_rPhantom;
+ SGPDriver* m_pSGPDriver;
+ SGP* m_pSGP;
+ const int m_iTrace;
+ wxDC* m_pDC;
+
+ wxButton *m_btnAbort; // the abort button (or NULL if none)
+ wxButton *m_btnPause;
+ wxButton *m_btnStep;
+
+ wxMemoryDC m_memoryDC; // for restoring image on OnPaint
+ wxBitmap m_bitmap;