public void LockControl(Control locked)
        {
            if (locked != null)
            {
                if ((locked.Parent != null) && (locked.Parent.Controls != null))
                {
                    try
                    {
                        int num = (locked.Size.Height - 0x10) / 2;
                        int num2 = 0;
                        ResourceManager manager = new ResourceManager(typeof(MainForm));
                        PictureBox box = new PictureBox();
                        if (locked is TextBox)
                        {
                            num2 += 5;
                        }
                        else if (!(locked is CheckBox) && !(locked is RadioButton))
                        {
                            num2 = (locked.Size.Width - 0x10) / 2;
                        }
                        box.Cursor = Cursors.Help;
                        box.Image = (Image) manager.GetObject("lockBox.Image");
                        box.Size = new Size(0x10, 0x10);
                        box.SizeMode = PictureBoxSizeMode.AutoSize;
                        box.Click += new EventHandler(this.lockBox_Click);
                        box.TabIndex = locked.TabIndex;
                        box.TabStop = locked.TabStop;
                        box.Location = new Point(locked.Location.X + num2, locked.Location.Y + num);
                        box.Name = locked.Name + "LockBox";
                        box.Tag = locked;
                        box.Visible = true;
                        locked.Parent.Controls.Add(box);
                        locked.Parent.Controls.SetChildIndex(box, 0);
                        this.m_LockBoxes.Add(box);
                    }
                    catch
                    {
                    }
                }
                locked.Enabled = false;
            }
        }