// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using System.Drawing;
 
namespace System.Windows.Forms;
 
public partial class Control
{
    /// <summary>
    ///  Wrapper for a <see cref="Drawing.Font"/>'s <see cref="HFONT"/>.
    /// </summary>
    internal sealed class FontHandleWrapper : IDisposable
    {
        private HFONT _handle;
 
        internal FontHandleWrapper(Font font) => _handle = (HFONT)font.ToHfont();
 
        internal HFONT Handle
        {
            get
            {
                Debug.Assert(!_handle.IsNull, "FontHandleWrapper disposed, but still being accessed");
                return _handle;
            }
        }
 
        public void Dispose()
        {
            if (!_handle.IsNull)
            {
                PInvokeCore.DeleteObject(_handle);
                _handle = default;
            }
 
            GC.SuppressFinalize(this);
        }
 
        ~FontHandleWrapper() => Dispose();
    }
}