MF_WINDOW             = 0
MF_GETKEY             = 2
MF_TEXT               = 4
MF_DELAY              = 5
MF_BUTTON             = 8
MF_PROCINFO           = 9
  PN_MYSELF             = -1
MF_WAIT_EVENT         = 10
MF_DRAWSTATUS         = 12
  DS_BEGIN              = 1
  DS_END                = 2
MF_BAR                = 13
MF_GETBUTTON          = 17
MF_WAIT_EVENT_TIMEOUT = 23
MF_GETMOUSE           = 37
  MS_COORDS_WINDOW      = 1
MF_PORTS              = 46
  PRT_RESERVE           = 0
  PRT_FREE              = 1
MF_THREAD             = 51
  THR_CREATE            = 1
MF_PCI                = 62
MF_EXIT               = -1
MF_INTERNAL_SERVICES  = 68
  ALLOC_PHYS_MEM        =5
  FREE_PHYS_MEM         =6
  SET_PHYS_BUFFER       =7
  GET_PHYS_BUFFER       =8
MF_SYSTREE            = 70