#include <gtk/gtk.h>
/*Callback function in which reacts to the "response" signal. Be sure to place
it before the function it is called in*/
static void
on_response (GtkDialog *dialog,
gint response_id,
gpointer user_data)
{
/*For demonstration purposes, this will show the int value
of the response type*/
g_print ("response is %d\n", response_id);
/*This will cause the dialog to be destroyed*/
gtk_widget_destroy (GTK_WIDGET (dialog));
}
/*Callback function in which reacts to the "clicked" signal*/
static void
show_dialog (GtkButton *button,
gpointer user_data)
{
GtkWindow *window = user_data;
GtkWidget *dialog;
GtkWidget *content_area;
GtkWidget *label;
gint response_id;
/*Create the dialog window. Modal windows prevent interaction with other
windows in the same application*/
dialog = gtk_dialog_new_with_buttons ("A Gtk+ Dialog",
window,
GTK_DIALOG_MODAL,
GTK_STOCK_OK,
GTK_RESPONSE_OK,
NULL);
/*Create a label and attach it to the content area of the dialog*/
content_area = gtk_dialog_get_content_area (GTK_DIALOG (dialog));
label = gtk_label_new ("This demonstrates a dialog with a label");
gtk_container_add (GTK_CONTAINER (content_area), label);
/*The main purpose of this is to show dialog's child widget, label*/
gtk_widget_show_all (dialog);
/*Connecting the "response" signal from the user to the associated
callback function*/
g_signal_connect (GTK_DIALOG (dialog),
"response",
G_CALLBACK (on_response),
NULL);
}
static void
activate (GtkApplication *app,
gpointer user_data)
{
GtkWidget *window;
GtkWidget *button;
/*Create a window with a title and a default size*/
window = gtk_application_window_new (app);
gtk_window_set_title (GTK_WINDOW (window), "GNOME Button");
gtk_window_set_default_size (GTK_WINDOW (window), 250, 50);
/*Create a button with a label, and add it to the window*/
button = gtk_button_new_with_label ("Click Me");
gtk_container_add (GTK_CONTAINER (window), button);
/*Connecting the clicked signal to the callback*/
g_signal_connect (GTK_BUTTON (button),
"clicked",
G_CALLBACK (show_dialog),
GTK_WINDOW (window));
gtk_widget_show_all (window);
}
int
main (int argc, char **argv)
{
GtkApplication *app;
int status;
app = gtk_application_new ("org.gtk.example", G_APPLICATION_FLAGS_NONE);
g_signal_connect (app, "activate", G_CALLBACK (activate), NULL);
status = g_application_run (G_APPLICATION (app), argc, argv);
g_object_unref (app);
return status;
}