// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
namespace System.Windows.Forms;
 
public partial class SendKeys
{
    /// <summary>
    ///  SendKeys creates a window to monitor WM_CANCELJOURNAL messages.
    /// </summary>
    private class SKWindow : Control
    {
        public SKWindow()
        {
            SetState(States.TopLevel, true);
            SetExtendedState(ExtendedStates.InterestedInUserPreferenceChanged, false);
            SetBounds(-1, -1, 0, 0);
            Visible = false;
        }
 
        protected override void WndProc(ref Message m)
        {
            if (m.Msg == (int)PInvoke.WM_CANCELJOURNAL)
            {
                try
                {
                    JournalCancel();
                }
                catch
                {
                }
            }
        }
    }
}