#ifndef _XPlot_
#define _XPlot_

typedef char * String;
typedef int    Boolean;

extern void    Fail (String message);

extern Boolean OpenXWindow (String name, int width, int height);
extern void    WaitMouseClicked (void);
extern void    CloseXWindow (void);

extern int     ShowXPlot ( int matrixHeight, int matrixWidth, 
		char ** matrix);

#endif