Acrylic4WPF.AcrylWindow.EnableBlur C# (CSharp) Method

        internal void EnableBlur() {
            WindowInteropHelper windowHelper = new WindowInteropHelper(this);

            AccentPolicy accent = new AccentPolicy {
                AccentState = AccentState.ACCENT_ENABLE_BLURBEHIND
            };

            int accentStructSize = Marshal.SizeOf(accent);

            IntPtr accentPtr = Marshal.AllocHGlobal(accentStructSize);
            Marshal.StructureToPtr(accent, accentPtr, false);

            WindowCompositionAttributeData data = new WindowCompositionAttributeData {
                Attribute = WindowCompositionAttribute.WCA_ACCENT_POLICY,
                SizeOfData = accentStructSize,
                Data = accentPtr
            };

            SetWindowCompositionAttribute(windowHelper.Handle, ref data);

            Marshal.FreeHGlobal(accentPtr);
        }