private void PosCombo_SelectionChangeCommitted(object sender, EventArgs e)
{
switch (PosCombo.SelectedIndex)
{
case 0:
MessageList[SelectedMessageIndex].boxPos = 0;
break;
case 1:
MessageList[SelectedMessageIndex].boxPos = 2;
break;
case 2:
MessageList[SelectedMessageIndex].boxPos = 3;
break;
}
}