private void MenuCB(System.Object sender, System.EventArgs e)
        {
                 //TO DO:
                // something what you want.
        }
        private void LatentPopupClipActionMenu(int eventX, int eventY)
        {
            ContextMenuStrip menu = new ContextMenuStrip();
            ToolStripLabel menuItem0 = new ToolStripLabel("Clip Actions");
            ToolStripSeparator menuItem1 = new ToolStripSeparator();
            ToolStripMenuItem menuItem2 = new ToolStripMenuItem("Zoom");
            ToolStripMenuItem menuItem3 = new ToolStripMenuItem("Draw Clip Area");
            ToolStripMenuItem menuItem4 = new ToolStripMenuItem("Clear Clip Area");
            menuItem2.Click += new EventHandler(MenuCB);
            menuItem3.Click += new EventHandler(MenuCB);
            menuItem4.Click += new EventHandler(MenuCB);
            menu.Items.AddRange(new ToolStripItem[]{
                menuItem0,
                menuItem1,
                menuItem2,
                menuItem3,
                menuItem4
            });
            menu.Show(this.ImageBox, eventX, eventY);//this.ImageBox is a control where you want show the menu
        }