XmtDisplayBusyCursor() displays a please wait cursor for
the window of the immediate shell widget ancestor of the widget w. It calls XFlush() internally after setting the cursor
to guarantee that the cursor will be changed before the function returns. The cursor that is used is specified by the
busyCursor application resource; the default for this
resource is the standard X wristwatch cursor.
XmtDisplayDefaultCursor() is designed for use with
XmtDisplayBusyCursor() and restores (or sets for the first
time) the cursor specified by the cursor application
resource. The default value of this resource is None-a cursor
of None means that the cursor displayed will depend upon
the window manager.
XmtDisplayCursor() displays cursor c for the shell specified
Each of these functions affect the nearest shell ancestor of
the supplied widget. Setting the cursor of a shell widget
will also set the cursor of any descendant widgets that do
not have some other cursor explicitly set. If there are widgets
in your hierarchy that do have a cursor explicitly set,
this function will have no effect on them.