private void PrintBtn_MouseDown(object sender, MouseButtonEventArgs e)
{
bool val = SLMgr.Get_Output(4);
SLMgr.Set_Output(4, !val);
}
private void WCPlight_MouseClick(object sender, MouseButtonEventArgs e)
{
bool val = SLMgr.Get_Output(4);
SLMgr.Set_Output(4, !val);
}