| File: Windows\Win32\PInvokeCore.SetClassLong.cs | Web Access |
| Project: src\winforms\src\System.Private.Windows.Core\src\Microsoft.Private.Windows.Core.csproj (Microsoft.Private.Windows.Core) |
// Licensed to the .NET Foundation under one or more agreements. // The .NET Foundation licenses this file to you under the MIT license. namespace Windows.Win32; internal static partial class PInvokeCore { // We only ever call this on 32 bit so IntPtr is correct [DllImport(Libraries.User32)] private static extern nint SetClassLongW(HWND hwnd, GET_CLASS_LONG_INDEX nIndex, nint dwNewLong); [DllImport(Libraries.User32)] private static extern nint SetClassLongPtrW(HWND hwnd, GET_CLASS_LONG_INDEX nIndex, nint dwNewLong); public static nint SetClassLong(HWND hWnd, GET_CLASS_LONG_INDEX nIndex, nint dwNewLong) => Environment.Is64BitProcess ? SetClassLongPtrW(hWnd, nIndex, dwNewLong) : SetClassLongW(hWnd, nIndex, dwNewLong); }