AdvancedLauncher.Tools.Interop.RedirectedHwndHost.OnRenderSizeChanged C# (CSharp) Method

        protected override void OnRenderSizeChanged(SizeChangedInfo sizeInfo)
        {
            Matrix dpiScale = CurrentHwndSource.CompositionTarget.TransformToDevice;
            Vector vSize = new Vector(sizeInfo.NewSize.Width, sizeInfo.NewSize.Height);
            vSize = dpiScale.Transform(vSize);

            int width = (int)Math.Ceiling(vSize.X);
            int height = (int)Math.Ceiling(vSize.Y);

            // Size the child window to be the natural size of the element.
            NativeMethods.SetWindowPos(
                Handle,
                HWND.NULL,
                0,
                0,
                width,
                height,
                SWP.NOZORDER | SWP.NOCOPYBITS);

            // Size the redirected window to contain the child window.
            _redirectedWindow.SetClientAreaSize(width, height);

            if (IsOutputRedirectionEnabled) {
                UpdateOutputRedirection();
            }

            base.OnRenderSizeChanged(sizeInfo);
        }