#include <stdio.h>#include <stdlib.h>#include <string.h>#include <minigui/common.h>#include <minigui/minigui.h>#include <minigui/gdi.h>#include <minigui/window.h>#include <minigui/control.h>void toolbar_demo (HWND hwnd){    MessageBox (hwnd, "Please see the demo program -- 'PicView'.",                    "See other for demo", MB_OK | MB_ICONINFORMATION);}