视频涂鸦（视频画图）

可在视频上进行涂鸦，解决透明窗体，鼠标穿透的问题。
using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;namespace IWords{ public partial class Form1 : Form { public Form1() { InitializeComponent(); this.WindowState = FormWindowState.Maximized; } private void button1_Click(object sender, EventArgs e) { FrmShow frmShow = new FrmShow(); frmShow.Show(); } }}