Int 15 Fn 12  - Topview - Send Message - "new" - Create New Object         [Q]

   AH = 12h
   BH = 01h
   BL = object type to create
       00h (DV 2.0x only) handle is DWORD on top of stack
       01h (DV 2.0x only) use task's window handle
       02h (DV 2.0x only) given task's mailbox (task's handle on stack)
       03h (DV 2.0x only) current task's mailbox
       04h (DV 2.0x only) given task's keyboard (task's handle on stack)
       05h (DV 2.0x only) current task's keyboard object
       08h WINDOW class
       09h MAILBOX class
       0Ah KEYBOARD class
       0Bh TIMER object (counts down 32-bit time in 10ms increments)
       0Fh POINTER object
       10h PANEL object
   STACK: (if window object or WINDOW class)
          DWORD address to jump to (no new task if high word == 0)
          DWORD (reserved) 0 = non-task window, FFFFh = task window
          DWORD bytes for task's private stack (FFFFh == default of 0100h)
          DWORD bytes system memory for input buffer for READ/READN
           (0 == none, -1 == default--same as logical window size)
          DWORD window size, columns
          DWORD window size, rows
          DWORD length of window title
          DWORD address of window title

Return: DWORD on top of stack is new object handle

Notes: if a new task is created, it is started with
     AX = BX = SI = DI = BP = 0
     DX:CX = handle of parent task
     DS = ES = SS = segment of private stack (and new task's handle)
   new windows are orphans, inherit the colors/hidden status of the
     creating task's window, and are placed in the upper left hand corner
     of the screen but not automatically redrawn
   new keyboards are closed, and have all object bits cleared except for
     the hardware cursor bit

See Also: AH=12h/BH=02h,AH=12h/BH=81h