MagickExport void XNoticeWidget(Display *display,XWindows *windows,
  const char *reason,const char *description)
{
#define DismissButtonText  "Dismiss"
#define Timeout  8

  const char
    *text;

  int
    x,
    y;

  Status
    status;

  time_t
    timer;

  unsigned int
    height,
    width;

  size_t
    state;

  XEvent
    event;

  XFontStruct
    *font_info;

  XTextProperty
    window_name;

  XWidgetInfo
    dismiss_info;

  XWindowChanges
    window_changes;

  /*
    Determine Notice widget attributes.
  */
  assert(display != (Display *) NULL);
  assert(windows != (XWindows *) NULL);
  assert(reason != (char *) NULL);
  (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",reason);
  XDelay(display,SuspendTime << 3);  /* avoid surpise with delay */
  XSetCursorState(display,windows,MagickTrue);
  XCheckRefreshWindows(display,windows);
  font_info=windows->widget.font_info;
  width=WidgetTextWidth(font_info,DismissButtonText);
  text=GetLocaleExceptionMessage(XServerError,reason);
  if (text != (char *) NULL)
    if (WidgetTextWidth(font_info,(char *) text) > width)
      width=WidgetTextWidth(font_info,(char *) text);
  if (description != (char *) NULL)
    {
      text=GetLocaleExceptionMessage(XServerError,description);
      if (text != (char *) NULL)
        if (WidgetTextWidth(font_info,(char *) text) > width)
          width=WidgetTextWidth(font_info,(char *) text);
    }
  height=(unsigned int) (font_info->ascent+font_info->descent);
  /*
    Position Notice widget.
  */
  windows->widget.width=width+4*QuantumMargin;
  windows->widget.min_width=width+QuantumMargin;
  if (windows->widget.width < windows->widget.min_width)
    windows->widget.width=windows->widget.min_width;
  windows->widget.height=(unsigned int) (12*height);
  windows->widget.min_height=(unsigned int) (7*height);
  if (windows->widget.height < windows->widget.min_height)
    windows->widget.height=windows->widget.min_height;
  XConstrainWindowPosition(display,&windows->widget);
  /*
    Map Notice widget.
  */
  (void) CopyMagickString(windows->widget.name,"Notice",MaxTextExtent);
  status=XStringListToTextProperty(&windows->widget.name,1,&window_name);
  if (status != False)
    {
      XSetWMName(display,windows->widget.id,&window_name);
      XSetWMIconName(display,windows->widget.id,&window_name);
      (void) XFree((void *) window_name.value);
    }
  window_changes.width=(int) windows->widget.width;
  window_changes.height=(int) windows->widget.height;
  window_changes.x=windows->widget.x;
  window_changes.y=windows->widget.y;
  (void) XReconfigureWMWindow(display,windows->widget.id,windows->widget.screen,
    (unsigned int) (CWWidth | CWHeight | CWX | CWY),&window_changes);
  (void) XMapRaised(display,windows->widget.id);
  windows->widget.mapped=MagickFalse;
  (void) XBell(display,0);
  /*
    Respond to X events.
  */
  timer=GetMagickTime()+Timeout;
  state=UpdateConfigurationState;
  do
  {
    if (GetMagickTime() > timer)
      break;
    if (state & UpdateConfigurationState)
      {
        /*
          Initialize Dismiss button information.
        */
        XGetWidgetInfo(DismissButtonText,&dismiss_info);
        dismiss_info.width=(unsigned int) QuantumMargin+
          WidgetTextWidth(font_info,DismissButtonText);
        dismiss_info.height=(unsigned int) ((3*height) >> 1);
        dismiss_info.x=(int)
          ((windows->widget.width >> 1)-(dismiss_info.width >> 1));
        dismiss_info.y=(int)
          (windows->widget.height-(dismiss_info.height << 1));
        state&=(~UpdateConfigurationState);
      }
    if (state & RedrawWidgetState)
      {
        /*
          Redraw Notice widget.
        */
        width=WidgetTextWidth(font_info,(char *) reason);
        x=(int) ((windows->widget.width >> 1)-(width >> 1));
        y=(int) ((windows->widget.height >> 1)-(height << 1));
        (void) XDrawString(display,windows->widget.id,
          windows->widget.annotate_context,x,y,(char *) reason,Extent(reason));
        if (description != (char *) NULL)
          {
            width=WidgetTextWidth(font_info,(char *) description);
            x=(int) ((windows->widget.width >> 1)-(width >> 1));
            y+=height;
            (void) XDrawString(display,windows->widget.id,
              windows->widget.annotate_context,x,y,(char *) description,
              Extent(description));
          }
        XDrawBeveledButton(display,&windows->widget,&dismiss_info);
        XHighlightWidget(display,&windows->widget,BorderOffset,BorderOffset);
        state&=(~RedrawWidgetState);
      }
    /*
      Wait for next event.
    */
    if (XCheckIfEvent(display,&event,XScreenEvent,(char *) windows) == MagickFalse)
      {
        /*
          Do not block if delay > 0.
        */
        XDelay(display,SuspendTime << 2);
        continue;
      }
    switch (event.type)
    {
      case ButtonPress:
      {
        if (MatteIsActive(dismiss_info,event.xbutton))
          {
            /*
              User pressed Dismiss button.
            */
            dismiss_info.raised=MagickFalse;
            XDrawBeveledButton(display,&windows->widget,&dismiss_info);
            break;
          }
        break;
      }
      case ButtonRelease:
      {
        if (windows->widget.mapped == MagickFalse)
          break;
        if (dismiss_info.raised == MagickFalse)
          {
            if (event.xbutton.window == windows->widget.id)
              if (MatteIsActive(dismiss_info,event.xbutton))
                state|=ExitState;
            dismiss_info.raised=MagickTrue;
            XDrawBeveledButton(display,&windows->widget,&dismiss_info);
          }
        break;
      }
      case ClientMessage:
      {
        /*
          If client window delete message, exit.
        */
        if (event.xclient.message_type != windows->wm_protocols)
          break;
        if (*event.xclient.data.l == (int) windows->wm_take_focus)
          {
            (void) XSetInputFocus(display,event.xclient.window,RevertToParent,
              (Time) event.xclient.data.l[1]);
            break;
          }
        if (*event.xclient.data.l != (int) windows->wm_delete_window)
          break;
        if (event.xclient.window == windows->widget.id)
          {
            state|=ExitState;
            break;
          }
        break;
      }
      case ConfigureNotify:
      {
        /*
          Update widget configuration.
        */
        if (event.xconfigure.window != windows->widget.id)
          break;
        if ((event.xconfigure.width == (int) windows->widget.width) &&
            (event.xconfigure.height == (int) windows->widget.height))
          break;
        windows->widget.width=(unsigned int)
          MagickMax(event.xconfigure.width,(int) windows->widget.min_width);
        windows->widget.height=(unsigned int)
          MagickMax(event.xconfigure.height,(int) windows->widget.min_height);
        state|=UpdateConfigurationState;
        break;
      }
      case EnterNotify:
      {
        if (event.xcrossing.window != windows->widget.id)
          break;
        state&=(~InactiveWidgetState);
        break;
      }
      case Expose:
      {
        if (event.xexpose.window != windows->widget.id)
          break;
        if (event.xexpose.count != 0)
          break;
        state|=RedrawWidgetState;
        break;
      }
      case KeyPress:
      {
        static char
          command[MaxTextExtent];

        static KeySym
          key_symbol;

        /*
          Respond to a user key press.
        */
        if (event.xkey.window != windows->widget.id)
          break;
        (void) XLookupString((XKeyEvent *) &event.xkey,command,
          (int) sizeof(command),&key_symbol,(XComposeStatus *) NULL);
        if ((key_symbol == XK_Return) || (key_symbol == XK_KP_Enter))
          {
            dismiss_info.raised=MagickFalse;
            XDrawBeveledButton(display,&windows->widget,&dismiss_info);
            state|=ExitState;
            break;
          }
        break;
      }
      case LeaveNotify:
      {
        if (event.xcrossing.window != windows->widget.id)
          break;
        state|=InactiveWidgetState;
        break;
      }
      case MotionNotify:
      {
        /*
          Discard pending button motion events.
        */
        while (XCheckMaskEvent(display,ButtonMotionMask,&event)) ;
        if (state & InactiveWidgetState)
          break;
        if (dismiss_info.raised == MatteIsActive(dismiss_info,event.xmotion))
          {
            /*
              Dismiss button status changed.
            */
            dismiss_info.raised=
              dismiss_info.raised == MagickFalse ? MagickTrue : MagickFalse;
            XDrawBeveledButton(display,&windows->widget,&dismiss_info);
            break;
          }
        break;
      }
      default:
        break;
    }
  } while ((state & ExitState) == 0);
  XSetCursorState(display,windows,MagickFalse);
  (void) XWithdrawWindow(display,windows->widget.id,windows->widget.screen);
  XCheckRefreshWindows(display,windows);
}