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

"Bokyun Na" <bkna@xxxxxxxxx> · Thu, 4 Feb 2010 16:53:13 +0900

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;

}

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