Int 15 Fn 11  - Topview Commands                                           [Q]

   AH = 11h
   AL = various (except 17h)

Return: varies by function

Note:  in DESQview 2.x, these function calls are identical to AH=DEh, so
     see those below

See Also: AX=DE00h,AX=DE22h,AX=DE30h