Function:cs2scbx

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==Description== ==Description==
Set the dynamic callback function - this one takes a void data ptr which gets handed off to the callback when it is invoked. Set the dynamic callback function - this one takes a void data ptr which gets handed off to the callback when it is invoked.
 +The callback function must be of the form:
 +<tt>void cbfn(double *time, int *keycount, VAR *data)</tt>
 +where time is the current system time, keycount records the number of times that the space bar has been pressed, and VAR is a valid data type.
 +
 +The callback function can be toggled on/off by pressing the z key.

Revision as of 23:33, 27 November 2007

cs2scbx

Set dynamic callback with initialisation data.

Prototype

void cs2scbx(void *icbfnx, void *data);

Description

Set the dynamic callback function - this one takes a void data ptr which gets handed off to the callback when it is invoked. The callback function must be of the form: void cbfn(double *time, int *keycount, VAR *data) where time is the current system time, keycount records the number of times that the space bar has been pressed, and VAR is a valid data type.

The callback function can be toggled on/off by pressing the z key.


See Also

cs2scbSet the callback function.

Code Example

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

/* Global variales used in callback */
int master_panel = 0;                   /* Default ID of main panel */
int slave_panel;                        /* ID of newly created panel */

void cb(double *t, int *kc, int *value)
{
   char string[32];
   sprintf(string,"I am panel: %d",*value);     /* Data passed to callback */
   s2textxy(0,0,0,string);                      /* Write the text */
}


int main(int argc, char *argv[])
{
   s2opend("/s2mono", argc, argv);              /* Open in mono mode */
   s2swin(-1.,1., -1.,1., -1.,1.);              /* Set the window coordinates */
   s2box("BCDET",0,0,"BCDET",0,0,"BCDET",0,0);  /* Draw coordinate box */

   xs2mp(master_panel, 0.0, 0.5, 0.5, 1.0);     /* Move to top left */

   slave_panel = xs2ap(0.5, 0.0, 1.0, 0.5);     /* Create panel in bottom right */
   xs2cp(slave_panel);                          /* Choose this panel */
   s2swin(-2.,2., -2.,2., -2.,2.);              /* Set the window coordinates */
   s2box("BCDE",0,0,"BCDE",0,0,"BCDE",0,0);     /* Draw coordinate box */
   cs2scbx(cb, &slave_panel);                   /* Dynamic callback with data */

   xs2cp(master_panel);                         /* Go back to main panel */
   cs2scbx(cb, &master_panel);                  /* Dynamic callback with data */

   s2sch(3);                                    /* Set character height */

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

   return 1;
}

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