gtk-sandbox/gtk3/example-1/exampleapp.c

59 lines
1.5 KiB
C

#include <gtk/gtk.h>
static void print_hello (GtkWidget *widget,
gpointer data)
{
/*print in a terminal*/
g_print ("Clicked\n");
}
static void
activate (GtkApplication *app,
gpointer user_data)
{
GtkWidget *window;
GtkWidget *button;
/*controlling button size and layout by storing it inside a box*/
GtkWidget *button_box;
window = gtk_application_window_new (app);
gtk_window_set_title (GTK_WINDOW (window), "Title");
gtk_window_set_default_size (GTK_WINDOW (window), 200, 200);
/*create and assigen box with orientation*/
button_box = gtk_button_box_new (GTK_ORIENTATION_HORIZONTAL);
/*add button box to window*/
gtk_container_add (GTK_CONTAINER (window), button_box);
/*initialise button*/
button = gtk_button_new_with_label ("Button");
/*connect button with callback function with NULL as input*/
g_signal_connect (button, "clicked", G_CALLBACK (print_hello), NULL);
/*connect button with destroy callback to destroy the window instead of the button*/
g_signal_connect_swapped (button, "clicked", G_CALLBACK (gtk_widget_destroy), window);
/*add button to window*/
gtk_container_add (GTK_CONTAINER (button_box), button);
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;
}