Int 33 Fn 0028  - MS Mouse V7.0+ - Set Video Mode                          [M]

   AX = 0028h
   CX = new video mode (call is NOP if 0000h)
   DH = Y font size (00h = default)
   DL = X font size (00h = default)

Return: CL = status (00h = successful)

Notes: DX is ignored unless the selected video mode supports font size control
   when CX=0000h, an internal flag that had been set by a previous call
     is cleared; this is required before a mouse reset

See Also: AX=0029h,INT 10/AH=00h