public void openSettings()
{
if (settingsDlg != null)
{
settingsDlg.BringToFront();
return;
}
settingsDlg = new BackgroundTransformatorSettings(settingsClosed);
settingsDlg.SettingsChanged += instance.settingsDlg_SettingsChanged;
settingsDlg.Show();
}
private void settingsClosed()
{
settingsDlg = null;
}