#define MIN_HIST_WIDTH 4
#define MAX_HIST_WIDTH 10
-typedef enum { PEN_NONE, PEN_BLACK, PEN_DOTTED, PEN_BLUEDOTTED, PEN_BOLDWHITE, PEN_BOLDBLACK, PEN_BACKGD } PenType;
+typedef enum { PEN_NONE, PEN_BLACK, PEN_DOTTED, PEN_BLUEDOTTED, PEN_BOLDWHITE, PEN_BOLDBLACK, PEN_BACKGD, PEN_ANY } PenType;
#define FILLED 1
#define OPEN 0
extern int currFirst;
extern int currLast;
extern int currCurrent;
+extern int differentialView;
extern int nWidthPB;
extern int nHeightPB;