Is it possible to share a callback function in order to detect which button is clicked?

["Bokyun Na" <bkna kpu ac kr>]

I put a simple code to test which a button is clicked

There are two buttons.

I would know which button is clicked in the function “on_window_partition()”.

Any idea?

Regards,

 

 

/* ************** recog_darea.c ****************************************/

#include <gtk/gtk.h>

#include <stdio.h>

 

typedef struct dm_t_tag {

  int nwin;

  int clicked;

} dm_t;

 

/* Function Prototypes */

 

GtkWidget *makeFixedContainer(GtkWidget *window, dm_t *dm);

 

int main(int argc,char *argv[])

{

  GtkWidget *window;

  GtkWidget *topbox;

 

  dm_t dm;

 

  gtk_init (&argc, &argv); 

  window = gtk_window_new(GTK_WINDOW_TOPLEVEL);

 

  gtk_object_set_data (GTK_OBJECT (window), "window", window);

  gtk_widget_set_usize (window, 260, 150);

  gtk_window_set_policy(GTK_WINDOW(window), FALSE, TRUE, TRUE);

  gtk_window_set_position (GTK_WINDOW (window), GTK_WIN_POS_CENTER);

  gtk_window_set_default_size (GTK_WINDOW (window), 260, 150);

  gtk_signal_connect(GTK_OBJECT(window), "destroy", GTK_SIGNAL_FUNC(gtk_main_quit), NULL);

 

  topbox = gtk_hbox_new(FALSE, 0);

  gtk_container_add(GTK_CONTAINER(window), topbox);

  gtk_container_set_border_width(GTK_CONTAINER(topbox), 5);

 

  makeFixedContainer (topbox, &dm);

 

  gtk_widget_show_all(window);

  gtk_main();

  return 0;

}

 

void on_window_partition (GtkWidget *widget, dm_t *dm)

{

  fprintf (stderr, "darea %d is clicked.\n", dm->clicked);

}

 

GtkWidget *makeFixedContainer(GtkWidget *window, dm_t *dm)

{

  int i, j, num;

  GtkWidget *table;

  GtkWidget *afixed;

 

  GtkWidget *button[2];

  GtkWidget *darea[2];

  GtkWidget *fixed[2]; 

 

  afixed = gtk_fixed_new ();

  gtk_box_pack_start (GTK_BOX(window), afixed, FALSE, TRUE, 0);

  gtk_widget_show (afixed);

 

  for(j = 0; j < 1; j++) {

    for(i = 0; i < 2; i++) {

      num = i + 2 * j;

      button[num] = gtk_button_new();

      fixed[num] = afixed;

   

      darea[num] = gtk_drawing_area_new ();

      gtk_drawing_area_size (GTK_DRAWING_AREA(darea[num]), 100, 80);

      gtk_container_add (GTK_CONTAINER(button[num]), darea[num]);

      gtk_signal_connect (GTK_OBJECT(button[num]), "clicked", GTK_SIGNAL_FUNC(on_window_partition), dm);

 

      gtk_fixed_put (GTK_FIXED(fixed[num]), button[num], 120*i, 85*j);

      gtk_widget_realize (darea[num]);

    }

  }

 

  return table;

}