NAME

       SoXtInputFocus — reports input focus change events

INHERITS FROM

       SoXtDevice > SoXtInputFocus

SYNOPSIS

       #include <Inventor/Xt/devices/SoXtInputFocus.h>

       #define SO_XT_ALL_FOCUS_EVENTS (EnterWindowMask | LeaveWindowMask)

          Methods from class SoXtInputFocus:

                         SoXtInputFocus(EventMask mask = SO_XT_ALL_FOCUS_EVENTS)
                         ~SoXtInputFocus()

          Methods from class SoXtDevice:

     virtual void             enable(Widget w, XtEventHandler f, XtPointer data, Window win = NULL)
     virtual void             disable(Widget w, XtEventHandler f, XtPointer data)
     virtual const SoEvent *  translateEvent(XAnyEvent *xevent)
     void                     setWindowSize(const SbVec2s &size)
     const SbVec2s &          getWindowSize() const

DESCRIPTION

       This  class  reports  input focus change events (i.e. when the cursor crosses into or out of the window).
       There are no input focus events in Inventor, so this always returns NULL when asked to translate  events.
       When this class is registered on a render area, the render area will receive X input focus change events.
       (This class is extensively employed by the viewer classes.)

METHODS

                         SoXtInputFocus(EventMask mask = SO_XT_ALL_FOCUS_EVENTS)
                         ~SoXtInputFocus()
          Constructor and destructor. To the constructor, pass which input focus events you are interested in as
          a bitwise OR of the following values:

          EnterWindowMask — Input focus entered the window

          LeaveWindowMask — Input focus left the window

          Or simply pass the defined value SO_XT_ALL_FOCUS_EVENTS for all input focus events.

SEE ALSO

       SoXtDevice

                                                                                           SoXtInputFocus(3IV)()