XtGetKeyboardFocusWidget - extension event handling
#include <X11/Intrinsic.h>
Widget XtGetKeyboardFocusWidget(Widget widget);
  - widget
- Specifies the widget for this event handler. Must be of class Core or any
      subclass thereof.
XtGetKeyboardFocusWidget function returns the widget that would be the
  end result of keyboard event forwarding for a keyboard event for the specified
  widget.
XtInsertEventTypeHandler(3), XtRemoveEventTypeHandler(3),
  XtRegisterExtensionSelector(3), XtSetEventDispatcher(3),
  XtDispatchEventToWidget(3)
X Toolkit Intrinsics - C Language Interface
Xlib - C Language X Interface