Mouse Default Values.


   Cursor position:              Screen centre.
   Mouse cursor:                 Not displayed.
   Graphics cursor:              An arrow.
   Text cursor:                  A solid block.
   Interrupt call mask:          No interrupts.
   Light Pen mode:               Emulation enabled.
   Horz. Mickey/Pixel ratio:     8 to 8
   Vert. Mickey.Pixel ratio:     16 to 8
   Min/Max cursor posn. Horz:    Max. width of video mode.
   Min/Max cursor posn. Vert:    Max. height of video mode.
   Mouse threshold speed:        64



   Mouse horizontal and vertical values & factors


           Horizontal     Vertical  Factor

   Mode  3   640             200      8
   Mode  4   320             200      8
   Mode 13   320             200      8
   Mode 14   640             200      8
   Mode 16   640             350     14
   Mode 18   640             480     19.2


   These horizontal and vertical values are the range values which may be
   used as input to or output from the mouse functions which require and
   return absolute pixel values.

   From the above table it can be seen that the values are dependent upon
   the screen modes.
.