Re: [gtk-list] Problem with signals..

[Jim Harmon <jharmon telecnnct com>]

Michael Oswell wrote:
> 
> The problem is that for some reason, clicking on any button causes a
> sigsegv.  I know there is something wrong with the code that is causing
> it, but for the life of me can't figure out what it is.  I am fairly new
> to gtk (Installed it this morning for the first time. :P ), so it may very
> well be something very simple.

Are you saying that you got *no* errors compiling and installing GTK?


> Any help would be greatly appreciated.  Oh.. And I have joined the list,
> or at least sent a request to it, but have had no responce back from the
> daemon yet, so please respond to oswell@mail.ocis.net.
> 
> Thanks again..
> 
> -------
> 
> Here is my system:
>     OpenBSD envy 2.2 GENERIC#10 i386
> 
>     gtk-config --version
>          0.99.10
> 
> Here is the output from running my program:
> 
> oswell@envy [~/code/configsys]: ./configsys
> Trace/BPT trap (core dumped)
> oswell@envy [~/code/configsys]: ./configsys
> 
> ** ERROR **: sigsegv caught
> 
> The first error I had never seen before I went to capture an error for
> this email... Whacky. :)
> 
> And at last.. Here is the code.
> 
> ----------
> #include "gtk/gtk.h"
> 
> int login (void)
> {
>     g_print("You pushed login.\n");
> }
> 
> void destroy (void)
> {
>   gtk_exit (0);
> }
> 
> void new_alias(GtkWidget *widget, gpointer *data)
> {
>    g_print("Clicked on new_alias: %s\n", (char *)data);
> }
> 
> /******************************/
> /* Print out the main screen. */
> /******************************/
> GtkWidget *printMain(void)
> {
>   GtkWidget *window, *table;
>   GtkWidget *new_alias;
> 
>   window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
>   gtk_signal_connect (GTK_OBJECT (window), "destroy", GTK_SIGNAL_FUNC (destroy), NULL);
>   gtk_window_set_title(GTK_WINDOW (window), "On Call Internet Services - User Configuration");
>   gtk_container_border_width (GTK_CONTAINER (window), 10);
> 
>   /* Create a new table. */
>   table = gtk_table_new(4,6,1);
>   gtk_container_add(GTK_CONTAINER(window), table);
> 
>    /* Create the newalias button */
>   new_alias = gtk_button_new_with_label ("New Alias");
>   gtk_signal_connect(GTK_OBJECT(new_alias), "clicked", GTK_SIGNAL_FUNC (new_alias), (gpointer) "New Alias");
>   gtk_table_attach_defaults(GTK_TABLE(table), new_alias, 0,1,0,1);
>   gtk_widget_show(new_alias);
> 
>   gtk_widget_show (table);
>   gtk_widget_show (window);
> 
>   return(window);
> }
> 
> /*******************************/
> /* dologin shows login screen. */
> /*******************************/
> 
> int dologin(void)
> {
>     GtkWidget *window, *table;
>     GtkWidget *login, *cancel;
>     GtkWidget *label, *username, *password;
> 
>     window = gtk_window_new(GTK_WINDOW_DIALOG);
>     gtk_signal_connect (GTK_OBJECT (window), "destroy", GTK_SIGNAL_FUNC (destroy), NULL);
> 
>     gtk_window_set_title(GTK_WINDOW(window), "Login Dialog");
>     gtk_container_border_width (GTK_CONTAINER (window), 10);
>     gtk_window_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
> 
>     /* Create table in new dialog box. */
>     table = gtk_table_new(4,6,1);
>     gtk_container_add(GTK_CONTAINER(window), table);
> 
>     /* Create username label. */
>     label = gtk_label_new("Username:  ");
>     gtk_table_attach_defaults(GTK_TABLE(table), label, 1, 2, 0, 1);
>     gtk_widget_show(label);
> 
>     /* Create username text box. */
>     username = gtk_entry_new_with_max_length(15);
>     gtk_table_attach_defaults(GTK_TABLE(table), username, 2, 5, 0 , 1);
>     gtk_widget_show(username);
> 
>     /* Create password label. */
>     label = gtk_label_new("Password:  ");
>     gtk_table_attach_defaults(GTK_TABLE(table), label, 1, 2, 1, 2);
>     gtk_widget_show(label);
> 
>     /* Create password text box. */
>     password = gtk_entry_new_with_max_length(15);
>     gtk_table_attach_defaults(GTK_TABLE(table), password, 2, 5, 1 , 2);
>     gtk_widget_show(password);
> 
>     /* Create the login button */
>     login = gtk_button_new_with_label ("Login");
>     gtk_signal_connect(GTK_OBJECT(login), "clicked", GTK_SIGNAL_FUNC(login), NULL);
>     gtk_table_attach_defaults(GTK_TABLE(table), login, 1,2,3,4);
>     gtk_widget_show(login);
> 
>     /* Create the cancel button */
>     cancel = gtk_button_new_with_label ("Cancel");
>     gtk_signal_connect(GTK_OBJECT(cancel), "clicked", GTK_SIGNAL_FUNC(destroy), NULL);
>     gtk_table_attach_defaults(GTK_TABLE(table), cancel, 4,5,3,4);
>     gtk_widget_show(cancel);
> 
>     /* Make the login button the default. */
>     GTK_WIDGET_SET_FLAGS(login, GTK_CAN_DEFAULT);
> 
>     gtk_widget_show (table);
>     gtk_widget_show (window);
> 
>     return(0);
> }
> 
> int
> main (int argc, char **argv)
> { GtkWidget *window;
>   int login = 0;
> 
>   gtk_init (&argc, &argv);
> 
>   window = printMain();
>   login = dologin();
> 
>   gtk_main ();
> 
>   return 0;
> }
> 
> --
> To unsubscribe: mail -s unsubscribe gtk-list-request@redhat.com < /dev/null

-- 
   Jim Harmon                           The Telephone Connection
jim@telecnnct.com                          Rockville, Maryland