#ifndef MY_GRAPHICS_DEFS

#include <X11/Xlib.h>
#include <Xm/Xm.h>

typedef struct {
   GC           gc;
   Widget       db;
   Display  *   disp;
   int          xmax,ymax;
} environment;

typedef struct {
   int x,y;
} point ;

typedef struct {
   point  e1, e2;
} line;

#define MY_GRAPHICS_DEFS
#endif