|
// 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
{
[DllImport(Libraries.User32, SetLastError = true)]
private static extern nint SetWindowLongW(HWND hWnd, WINDOW_LONG_PTR_INDEX nIndex, nint dwNewLong);
[DllImport(Libraries.User32, SetLastError = true)]
private static extern nint SetWindowLongPtrW(HWND hWnd, WINDOW_LONG_PTR_INDEX nIndex, nint dwNewLong);
public static nint SetWindowLong<T>(T hWnd, WINDOW_LONG_PTR_INDEX nIndex, nint newValue)
where T : IHandle<HWND>
{
nint result = Environment.Is64BitProcess
? SetWindowLongPtrW(hWnd.Handle, nIndex, newValue)
: SetWindowLongW(hWnd.Handle, nIndex, (int)newValue);
GC.KeepAlive(hWnd.Wrapper);
return result;
}
public static nint SetWindowLong<THwnd, TNewValue>(THwnd hWnd, WINDOW_LONG_PTR_INDEX nIndex, TNewValue newValue)
where THwnd : IHandle<HWND>
where TNewValue : IHandle<HWND>
{
nint result = SetWindowLong(hWnd, nIndex, (nint)newValue.Handle);
GC.KeepAlive(newValue.Wrapper);
return result;
}
public static nint SetWindowLong<T>(T hWnd, WINDOW_LONG_PTR_INDEX nIndex, WNDPROC dwNewLong)
where T : IHandle<HWND>
{
IntPtr pointer = Marshal.GetFunctionPointerForDelegate(dwNewLong);
IntPtr result = SetWindowLong(hWnd, nIndex, pointer);
GC.KeepAlive(dwNewLong);
return result;
}
}
|