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       XtNameToWidget, XtWindowToWidget - translating strings to widgets or
       widgets to windows


       Widget XtNameToWidget(Widget reference, String names);

       Widget XtWindowToWidget(Display *display, Window window);


       display   Specifies the display on which the window is defined.

       names     Specifies the fully qualified name of the desired widget.

       reference Specifies the widget from which the search is to start.

       window    Specify the window for which you want the widget.


       The XtNameToWidget function looks for a widget whose name is the first
       component in the specified names and that is a pop-up child of
       reference (or a normal child if reference is a subclass of
       compositeWidgetClass).  It then uses that widget as the new reference
       and repeats the search after deleting the first component from the
       specified names.  If it cannot find the specified widget,
       XtNameToWidget returns NULL.

       Note that the names argument contains the name of a widget with respect
       to the specified reference widget and can contain more than one widget
       name (separated by periods) for widgets that are not direct children of
       the specified reference widget.

       If more than one child of the reference widget matches the name,
       XtNameToWidget can return any of the children.  The Intrinsics do not
       require that all children of a widget have unique names.  If the
       specified names contain more than one component and if more than one
       child matches the first component, XtNameToWidget can return NULL if
       the single branch that it follows does not contain the named widget.
       That is, XtNameToWidget does not back up and follow other matching
       branches of the widget tree.

       The XtWindowToWidget function translates the specified window and
       display pointer into the appropriate widget instance.


       X Toolkit Intrinsics - C Language Interface
       Xlib - C Language X Interface

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