public FrmCapture() { InitializeComponent(); this.FormBorderStyle = FormBorderStyle.None; this.Location = new Point(0, 0); this.Size = new Size(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height); this.TopMost = true; this.ShowInTaskbar = false; m_MHook = new MouseHook(); this.FormClosing += (s, e) => { m_MHook.UnLoadHook(); this.DelResource(); }; imageProcessBox1.MouseLeave += (s, e) => this.Cursor = Cursors.Default; //后期一些操作历史记录图层 m_layer = new List <Bitmap>(); }