Int 15 Fn 12  - Desqview V2.26+ - "connect" - Connect Two Windows          [Q]

   AH = 12h
   BH = 03h
   BL = window to be connected
       00h handle of window to be attached in DWORD on top of stack
       01h attach current task's main window
   STACK: DWORD handle of window to attach to or 00000000h to detach

Return: STACK popped

Notes: when two windows are connected, both will move if the user moves either
   multiple windows may be attached to a single window, but each window
     may only be attached to one window at a time

See Also: AH=12h/BH=83h