extern int XDrawPoint (Display *, Drawable, GC, int x, int y);
extern int XDrawPoints (Display *, Drawable, GC, XPoint *, int n, int mode);
extern int XDrawSegments (Display *, Drawable, GC, XSegment *, int n);
extern int XDrawPoint (Display *, Drawable, GC, int x, int y);
extern int XDrawPoints (Display *, Drawable, GC, XPoint *, int n, int mode);
extern int XDrawSegments (Display *, Drawable, GC, XSegment *, int n);