�E•\Ž¦‰æ–Ê(Displaying Screen)
    DS_zoomrate(xrate,yrate)
    DS_dispxy(x,y)
    DS_lattice(sw1,sw2)
�E•Ò�W‰æ‘œ(Editing Image)
�EUNDO‰æ‘œ(Backup Image)
�E�Ø“\‰æ‘œ(Cut Buffer)