// Copyright © 2017-2026 QL-Win Contributors
//
// This file is part of QuickLook program.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

using System;
using System.Windows.Interop;

namespace QuickLook.Common.ExtensionMethods;

public static class WindowInteropHelperExtension
{
    extension(WindowInteropHelper windowInteropHelper)
    {
        public nint EnsureHandleSafe()
        {
            try
            {
                return windowInteropHelper?.EnsureHandle() ?? IntPtr.Zero;
            }
            catch
            {
                // Returning 0 is fine, since this error usually only occurs when the window is already closed or being disposed.
                return IntPtr.Zero;
            }
        }
    }
}