Function:ss2qxh

int ss2qxh(void);

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <math.h>
#include "s2plot.h"

void cb(double *t, int *kc)
{
   char string[64];				/* Label to draw */
   int vis;					/* Crosshair visibility */

   vis = ss2qxh();				/* Query crosshair state */
   sprintf(string,"Cntrl-C to change crosshairs.  Currently: %d\n",vis);
   s2lab("","","",string);			/* Write the label */

}


int main(int argc, char *argv[])
{
   int N = 100;					/* Number of points */
   float x, y, z;				/* Positions */
   float r, g, b;				/* Colours */
   int i;

   srand48((long)time(NULL));			/* Seed random numbers */

   s2opend("/?",argc, argv);			/* Open the display */
   s2swin(-1.,1., -1.,1., -1.,1.);		/* Set the window coordinates */
   s2box("BCDET",0,0,"BCDET",0,0,"BCDET",0,0);	/* Draw coordinate box */

   s2slw(3);	/* Note this does NOT change linewidth - use ns2thpoint */
   for (i=0;i<N;i++) {				/* Random data positions */
      x = drand48()*2.0 - 1.0;
      y = drand48()*2.0 - 1.0;
      z = drand48()*2.0 - 1.0;
      r = drand48();
      g = drand48();
      b = drand48();
      ns2thpoint(x,y,z, r,g,b, 3);		/* Draw the thick point */
   }

   cs2scb(&cb);					/* Install a callback */

   s2show(1);					/* Open the s2plot window */
   
   return 1;
}