private void lstBreakpoints_MouseDown(object sender, MouseEventArgs e)
{
ListViewHitTestInfo info = lstBreakpoints.HitTest(e.X, e.Y);
if (info != null && info.Item != null)
{
int row = info.Item.Index;
int col = info.Item.SubItems.IndexOf(info.SubItem);
if (col == 1 && row < lstBreakpoints.Items.Count)
{
this.BeginInvoke((Action)(() => {
Breakpoint bp = lstBreakpoints.Items[row].Tag as Breakpoint;
bp?.SetMarked(!bp.MarkEvent);
}));
}
}
}