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

        protected virtual bool HasFocusWithinCore()
        {
            HWND hwndFocus = NativeMethods.GetFocus();
            return (hwndFocus != null && !hwndFocus.IsInvalid && NativeMethods.IsChild(Handle, hwndFocus));
        }