//================================================================================
private void ButOkClick(object sender, EventArgs e)
{
int type = 0;
string text = "";
if (optAll.Checked)
{
type = CajApp.NULL_TYPE_ALL;
text = "";
}
else if (optAllExcept.Checked)
{
type = CajApp.NULL_TYPE_ALL_EXCEPT;
text = txtList.Text;
}
else if (optOnly.Checked)
{
type = CajApp.NULL_TYPE_ONLY;
text = txtList.Text;
}
int numKeepEmitters = CajApp.config.readInt(CajConfig.keyKeepEmitters, 0);
this.Hide();
CajApp.nullEffectsButtonAction(type, text, numKeepEmitters);
}