#include <gtk/gtk.h>
static void activate(GtkApplication * app, gpointer user_date);
static void print_hello(GtkWidget *widget, gpointer data);
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;
}
static void activate(GtkApplication * app, gpointer user_date)
{
GtkWidget * window;
GtkWidget * grid;
GtkWidget * button;
window = gtk_application_window_new(app);
gtk_window_set_title(GTK_WINDOW(window), "Window");
gtk_container_set_border_width(GTK_CONTAINER(window), 10);
grid = gtk_grid_new();
gtk_container_add(GTK_CONTAINER(window), grid);
button = gtk_button_new_with_label("Button 1");
g_signal_connect(button, "clicked", G_CALLBACK(print_hello), NULL);
gtk_grid_attach(GTK_GRID(grid), button, 0, 0, 1, 1);
button = gtk_button_new_with_label("Button 2");
g_signal_connect(button, "clicked", G_CALLBACK(print_hello), NULL);
gtk_grid_attach(GTK_GRID(grid), button, 1, 0, 1, 1);
button = gtk_button_new_with_label("Quit");
g_signal_connect_swapped(button, "clicked", G_CALLBACK(gtk_widget_destroy), window);
gtk_grid_attach(GTK_GRID(grid), button, 0, 1, 2, 1);
gtk_widget_show_all(window);
}
static void print_hello(GtkWidget *widget, gpointer data)
{
g_print("Hello World\n");
}
Makefile:
main: main.c
gcc main.c -o main `pkg-config --cflags --libs gtk+-3.0`