Function            MCursorRangey - define vertical cursor range

  Syntax              void MCursorRangey(int top, int bottom);

  Prototype in        mousehk.h

  Remarks             defines the minimum and maximum y-coordinates the
                      mouse may move to.

  Return value        nothing.

  See also            MCursorOff(), MCursorOn(), MCursorGraphic(),
                      MCursorRangex(), MCursorText(), MGotoxy()

  Example             see demomous.c