XmTrackingLocate provides a modal interface for selection of a
component.
It is intended to support context help.
This function is implemented as XmTrackingEvent.
NOTE: This function is obsolete and exists for compatibility with
previous releases. It has been replaced by XmTrackingEvent.
widget
Specifies the widget ID of a widget to use as the basis of the modal
interaction. That is, the widget within which the interaction must
occur, usually a top-level shell.
cursor
Specifies the cursor to be used for the pointer during the interaction.
This is a standard X cursor name.
confine_to
Specifies whether or not the cursor should be confined to widget
RETURN
Returns the widget or gadget that contains the pointer when BSelect
is released or a key is released. If no widget or gadget contains the
pointer, the function returns NULL.