private void logToGUICheck_CheckedChanged(object sender, EventArgs e)
{
var value = logToGUICheck.Checked;
if (((Logger.OutputTarget & LoggerOutputTarget.UserInterface)!=0)==value) return;
if (value) Logger.OutputTarget |= LoggerOutputTarget.UserInterface;
else Logger.OutputTarget &= ~LoggerOutputTarget.UserInterface;
application.SaveSettings();
}