WM_COALESCE_FIRST | WM_MDIGETACTIVE |
WM_COALESCE_LAST | WM_MDIICONARRRANGE |
WM_COMMNOTIFY | WM_MDIMAXIMIZE |
WM_COMPAREITEM | WM_MDINEXT |
WM_DRAWITEM | WM_MDIRESTORE |
WM_DROPFILEW | WM_MDISETMENU |
WM_KEYFIRST | WM_MDITILE |
WM_MDIACTIVATE | WM_MEASUREITEM |
WM_MDICASCADE | WM_NEXTDLGCTL |
WM_MDICREATE | WM_SYSTEMERROR |
WM_MDIDESTROY |