This works as expected if you disable unicode support but with unicode it only outputs "H".
gtk_init_(0, 0)
*gdialog = gtk_message_dialog_new_(0, #GTK_DIALOG_MODAL, #GTK_MESSAGE_INFO, #GTK_BUTTONS_OK, "Hello there!" ,"","")
resp=gtk_dialog_run_(*gdialog)
gtk_widget_destroy_(*gdialog)



