protected override void OnClosed(EventArgs e)
{
_source.RemoveHook(KeybindService.HwndHook);
_source = null;
KeybindService.UnregisterHotKey(helper);
base.OnClosed(e);
}
protected override void OnSourceInitialized(EventArgs e)
{
base.OnSourceInitialized(e);
helper = new WindowInteropHelper(this);
_source = HwndSource.FromHwnd(helper.Handle);
_source.AddHook(KeybindService.HwndHook);
KeybindService.RegisterHotKey(helper);
}
