//
// Grab/release code for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2018 by Bill Spitzak and others.
//
// This library is free software. Distribution and use rights are outlined in
// the file "COPYING" which should have been included with this file.  If this
// file is missing or damaged, see the license at:
//
//     https://www.fltk.org/COPYING.php
//
// Please see the following page on how to report bugs and issues:
//
//     https://www.fltk.org/bugs.php
//

#include <config.h>
#include <FL/Fl.H>
#include <FL/core/pen_events.H>
#include "Fl_Screen_Driver.H"

////////////////////////////////////////////////////////////////
// "Grab" is done while menu systems are up.  This has several effects:
// Events are all sent to the "grab window", which does not even
// have to be displayed (and in the case of Fl_Menu.cxx it isn't).
// The system is also told to "grab" events and send them to this app.
// This also modifies how Fl_Window::show() works, on X it turns on
// override_redirect, it does similar things on Windows.

void Fl::grab(Fl_Window *win)
{
#if defined(FLTK_HAVE_PEN_SUPPORT)
  Fl_Pen_release();
#endif
  screen_driver()->grab(win);
}