# include <cstdlib>
# include <iostream>
# include <iomanip>

# include <X11/Intrinsic.h>
# include <X11/StringDefs.h>
# include <X11/Xaw/Command.h>

using namespace std;

int main ( int argc, char *argv[] );

//****************************************************************************

int main ( int argc, char *argv[] )

//****************************************************************************
//
//  Purpose:
//
//    MAIN is the main program for FAREWELL.
//
//  Discussion:
//
//    FAREWELL puts up an X window which is dismissed when the mouse button 
//    is pressed.
//
//  Compilation:
//
//    g++ farewell.cc -lXaw -lXt
//
//  Reference:
//
//    Theo Pavlidis,
//    Fundamentals of X Programming: Graphical User Interfaces and Beyond,
//    Kluwer Academic/Plenum Publishers, 1999
//
//  Modified:
//
//    31 January 2003
//
{
  XtAppContext app;
  Widget button;
  Widget toplevel;

  cout << "\n";
  cout << "FAREWELL:\n";
  cout << "  X-Window/C++ version.\n";
//
//  Create a top level shell widget;
//
  toplevel = XtAppInitialize ( &app, "Farewell", NULL,
    0, &argc, argv, NULL, NULL, 0 );
//
//  Create the button widget.
//
  button = XtVaCreateManagedWidget ( "button", commandWidgetClass,
    toplevel, XtNlabel, "Hello World!", XtNwidth, 256, XtNheight, 256, NULL );
//
//  Associate the callback function.
//
  XtAddCallback ( button, XtNcallback, (XtCallbackProc) exit, NULL );
//
//  Realize the widgets.
//
  XtRealizeWidget ( toplevel );
//
//  Enter the event loop.
//
  XtAppMainLoop ( app );
//
//  Terminate.
//
  cout << "\n";
  cout << "FAREWELL:\n";
  cout << " Normal end of execution.\n";

  return 0;
}