Source code for this example is also available in the file button.c
/*
*File name: button.c
*/
#include <gtk/gtk.h>
#include <glib.h>
/*-- This function allows the program to exit properly when the window is closed --*/
gint destroyapp (GtkWidget *widget, gpointer gdata)
{
g_print ("Quitting...\n");
gtk_main_quit();
return (FALSE);
}
/*-- This function responds to the mouse click on the button --*/
void button_clicked(GtkWidget *widget, gpointer gdata)
{
g_print("Button was clicked.\n");
}
int main (int argc, char *argv[])
{
/*-- Declare the GTK Widgets used in the program --*/
GtkWidget *window;
GtkWidget *button;
/*-- Initialize GTK --*/
gtk_init (&argc, &argv);
/*-- Create the new window --*/
window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
/*-- Create a button --*/
button = gtk_button_new_with_label("Click Me");
/*-- Connect the window to the destroyapp function --*/
gtk_signal_connect(GTK_OBJECT(window), "delete_event", GTK_SIGNAL_FUNC(destroyapp), NULL);
/*-- Connect the button to the button_was_clicked function --*/
gtk_signal_connect(GTK_OBJECT(button), "clicked", GTK_SIGNAL_FUNC(button_clicked), NULL);
/*-- Add the button to the window --*/
gtk_container_add(GTK_CONTAINER (window), button);
/*-- Add a border to the window to give the button a little room --*/
gtk_container_border_width (GTK_CONTAINER (window), 15);
/*-- Display the widgets --*/
gtk_widget_show(button);
gtk_widget_show(window);
/*-- Start the GTK event loop --*/
gtk_main();
/*-- Return 0 if exit is successful --*/
return 0;
}
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