compile the below code with: gcc main.c -o dcg.app `pkg-config --cflags --libs gtk+-2.0` #include <gtk/gtk.h> static int counter = 0; void greet( GtkWidget *widget, gpointer data ) { g_print("Hi there! Welcome to GTK\n"); g_print("%s clicked %d times\n", (char*)data, ++counter); } void destroy(GtkWidget *widget,gpointer data ) { gtk_main_quit (); } int main(int argc,char *argv[]) { GtkWidget *window; GtkWidget *button; gtk_init(&argc, &argv); window = gtk_window_new(GTK_WINDOW_TOPLEVEL); g_signal_connect(window, "destroy",G_CALLBACK(destroy), NULL); gtk_container_set_border_width(GTK_CONTAINER(window), 20); button = gtk_button_new_with_label("Open"); g_signal_connect(GTK_OBJECT(button),"clicked",G_CALLBACK (greet),"button"); gtk_container_add(GTK_CONTAINER (window), button); gtk_window_set_default_size(GTK_WINDOW(window), 400, 300); gtk_widget_show_all(window); gtk_main (); return 0; }

https://www.gtk.org/

for linux sudo apt-get install libgtk-3-dev for mac: brew install gtk3 09.02.19 for mac: sudo brew install gtk+3 sudo brew install pkg-config 09.02.19

https://developer.gnome.org/gtk3/stable/gtk-compiling.html

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