protected override void OnOpened(RoutedEventArgs e)
{
base.OnOpened(e);
var hwnd = (HwndSource)HwndSource.FromVisual(this);
AcrylicHelper.SetBlur(hwnd.Handle, AccentFlagsType.Popup);
}
internal static void SetBlur(Window win, AcrylicAccentState state, AccentFlagsType style = AccentFlagsType.Window)
{
var windowHelper = new WindowInteropHelper(win);
var value = AcrylicHelper.SelectAccentState(state);
AcrylicHelper.SetBlur(windowHelper.Handle, style, value);
}