Hello. I work for on GUI app on my olimex A13 development kit with codeblocks. I created interface on glade and I tried run glade with gtk-3.0 on codeblocks but I took program recived signal SIGSEGV, segmentation fault error every time. I did debug and error return on gtk_widget_show(window) line. I took same error other my code experiments. I struggle with this error since 3 days. My code this:
#include <stdlib.h>
#include <gtk/gtk.h>
int main(int argc, char *argv[])
{
GtkBuilder *builder;
GtkWidget *window;
GError *err = NULL;
gtk_init(&argc, &argv);
builder=gtk_builder_new();
gtk_builder_add_from_file(builder, "/home/olimex/Desktop/New1/box_test/GUI.glade", NULL);
//window=GTK_WIDGET(gtk_builder_get_object(builder,"GUI"));
if (NULL==window)
{
fprintf(stderr, "Unable to file object with id \"GUI\" \n");
}
gtk_builder_connect_signals(builder, NULL);
g_object_unref(builder);
gtk_widget_show(window);
gtk_main();
}
void on_window_main_destroy()
{
gtk_main_quit();
}
How can I fix this error? Thanks.
I regulated on my code. New code this:
int main(int argc, char *argv[])
{
GtkBuilder *builder;
GtkWidget *window;
GError *err = NULL;
gtk_init(&argc, &argv);
builder=gtk_builder_new();
gtk_builder_add_from_file(builder,"/home/olimex/Desktop/New1/box_test/GUI.glade",NULL);
if(err != NULL)
{
fprintf(stderr,"Unable to read file: %s\n", err->message);
g_error_free(err);
return 1;
}
window=GTK_WIDGET(gtk_builder_get_object(builder,"GUI"));
if (NULL==window/*0==gtk_builder_add_from_file(builder, "/home/olimex/Desktop/New1/box_test/builder.ui",&err)*/)
{
fprintf(stderr, "Unable to file object with id \"window\" \n");
//g_printerr("Error loading file: %s\n", err->message);
//g_clear_error(&err);
return 1;
}
gtk_builder_connect_signals(builder, NULL);
g_object_unref(builder);
gtk_widget_show(window);
gtk_main();
return 0;
}
void on_window_main_destroy(GtkWidget *widget, gpointer user_data)
{
gtk_main_quit();
}
and I exceed program received signal SIGSEGV, segmentation faul error. Now I encounter new error. Program return Unable to file object with id window writing. Other name of this error Gtk-CRITICAL **: gtk_widget_show: assertion `GTK_IS_WIDGET (widget)` failed. How can I fix this?? Thanks.
Cause of problem: name of glade object and name of GTK object (for use the object) different. For example: name of label object is "label1" in glade and name of label object in GTK is "label". So GTK does not find "label" in glade file and return this error.