public static void EnableBlur(Window window)
{
var windowHelper = new WindowInteropHelper(window);
var accent = new AccentPolicy();
accent.AccentState = AccentState.ACCENT_ENABLED_BLURBEHIND;
var accentStructSize = Marshal.SizeOf(accent);
var accentptr = Marshal.AllocHGlobal(accentStructSize);
Marshal.StructureToPtr(accent, accentptr, false);
var data = new WindowsCompositionAttributeData();
data.Attribute = WindowsCompositionAttribute.WCA_ACCENT_POLICY;
data.SizeOfData = accentStructSize;
data.Data = accentptr;
SetWindowCompositionAttribute(windowHelper.Handle, ref data);
Marshal.FreeHGlobal(accentptr);
}
internal static extern int SetWindowCompositionAttribute(IntPtr hand, ref WindowsCompositionAttributeData data);
