INT 15 - TopView - SEND MESSAGE - "SUBFROM" - WRITE ATTRIBUTES TO WINDOW
        AH = 12h
        BH = 0Bh
        BL = window to write attributes to
            00h handle is DWORD on top of stack
            01h current task's default window
            0Ch (DV 2.26+) default window of task owning handle on top of stack
            0Dh (DV 2.26+) default window of parent of current task
        STACK:  DWORD number of attributes to write
                DWORD address of attributes
Note:   the attributes are written starting at the current cursor position; the
          cursor is left just after the last position written