private void clickMarking(object sender, EventArgs e)
{
PictureBox[] pba = { PB_Mark1, PB_Mark2, PB_Mark3, PB_Mark4, PB_Mark5, PB_Mark6 };
CheckBox[] cba = { CHK_Circle, CHK_Triangle, CHK_Square, CHK_Heart, CHK_Star, CHK_Diamond };
CheckBox cb = cba[Array.IndexOf(pba, sender as PictureBox)];
cb.Checked = !cb.Checked;
setMarkings();
}
private void clickOT(object sender, EventArgs e)