#include static void gtkmain(GtkApplication *app,gpointer user_data){ GtkWidget *window; window=gtk_application_window_new(app); gtk_widget_show_all(window); } int main(int argc,char *argv[]){ GtkApplication *app; app=gtk_application_new("com.github.vscode.test",G_APPLICATION_FLAGS_NONE); g_signal_connect(app,"activate",G_CALLBACK(gtkmain),NULL); return g_application_run(G_APPLICATION(app),argc,argv); }