Hello,
I am new to gtk.
To learn the language I am writing simple
programs.
I want to be able to create 3 buttons, named
Button 1, Button 2 & Button 3.
If I explicitly initialize them it works.
When I pull the Initilize into a for loop
things start to go wrong.
I think that I am either not using the proper type
or not properly casting them.
The result is a segmentation error when I compile
which I think means a pointer is not correct.
If anyone knows how to fix this issue, it would be
greatly appreciated.
I have placed in bold the two sections
that I think apply to the problem.
My code is as follows:
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <gtk/gtk.h>
static void button_cb (GtkWidget *widget, gpointer data)
{
g_print ("Hello - %s was pressed\n", (gchar *) data);
}
static void delete_event_cb(GtkWidget *widget, GdkEvent *event, gpointer
data)
{
g_print ("A delete event has occurred\n");
gtk_main_quit();
}
int main( int argc,
char *argv[] )
{
GtkWidget *window;
GtkWidget *button;
GtkWidget *box1;
* gpointer label;
gint i;
*
gtk_init (&argc, &argv);
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_title (GTK_WINDOW (window), "Test Program");
gtk_container_set_border_width (GTK_CONTAINER (window), 50);
g_signal_connect (G_OBJECT (window), "delete_event", G_CALLBACK
(delete_event_cb), NULL);
box1 = gtk_hbox_new (FALSE, 0);
gtk_container_add (GTK_CONTAINER (window), box1);
for (i=1; i<=3; i=i+1)
{
*label = (gpointer)"Button ";
strcat (label, (gpointer) i);
button = gtk_button_new_with_label ((gchar *)label);
g_signal_connect (G_OBJECT (button), "clicked", G_CALLBACK
(button_cb), label);*
gtk_box_pack_start (GTK_BOX(box1), button, TRUE, TRUE, 0);
gtk_widget_show (button);
}
gtk_widget_show (box1);
gtk_widget_show (window);
gtk_main ();
return 0;
}
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