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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System.Runtime.InteropServices;
namespace Windows.Win32;
internal static partial class PInvokeCore
{
// We only ever call this on 32 bit so IntPtr is correct
// https://msdn.microsoft.com/library/windows/desktop/ms633580.aspx
[DllImport(Libraries.User32, SetLastError = true)]
private static extern nint GetClassLongW(HWND hWnd, GET_CLASS_LONG_INDEX nIndex);
// https://msdn.microsoft.com/library/windows/desktop/ms633581.aspx
[DllImport(Libraries.User32, SetLastError = true)]
private static extern nint GetClassLongPtrW(HWND hWnd, GET_CLASS_LONG_INDEX nIndex);
public static IntPtr GetClassLong(HWND hWnd, GET_CLASS_LONG_INDEX nIndex)
=> Environment.Is64BitProcess
? GetClassLongPtrW(hWnd, nIndex)
: GetClassLongW(hWnd, nIndex);
}
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