mobile调用手机摄像机程序

想实现通过程序调用手机的拍照摄像功能，原打算调用api不过去这方面不懂，查了好长时间终于凑成了一个简的小程序，贴出来：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using Microsoft.WindowsMobile.Forms;
using System.IO;

namespace video22
{
    public partial class Form1 : Form
    {
        //摄像窗体
        private CameraCaptureDialog cameraCapture = new CameraCaptureDialog();
        //保存路径
        private string path = @"\My Documents\测试";
        //文件名
        private string filname = "";
        public Form1()
        {
            InitializeComponent();
            cameraCapture.Owner = this;
        }
        /// <summary>
        /// 短视频50秒
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void menuItem4_Click(object sender, EventArgs e)
        {

            cameraCapture.Mode = CameraCaptureMode.VideoOnly;
            //摄像时限50秒
            cameraCapture.VideoTimeLimit = new TimeSpan(0, 0, 50);
        }
        /// <summary>
        /// 文件保存
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void menuItem2_Click(object sender, EventArgs e)
        {
            if (cameraCapture.ShowDialog() == DialogResult.OK)//如果拍摄后按下确定按钮
            {
                try
                {
                    //随机文件名
                    string str1 = DateTime.Now.Year.ToString() + DateTime.Now.Month.ToString() + DateTime.Now.Day.ToString() + DateTime.Now.Hour.ToString() + DateTime.Now.Minute.ToString() + DateTime.Now.Second.ToString();
                    //获取扩展名
                    string str = cameraCapture.FileName.Substring(cameraCapture.FileName.IndexOf("."));
                    filname = path + @"\" + str1 + str;
                    //将文件保存到指定路径
                    File.Move(cameraCapture.FileName,filname);
                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.ToString());
                }
                MessageBox.Show("文件已经成功保存！");
            }
        }

        /// <summary>
        /// 拍照功能
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void menuItem3_Click(object sender, EventArgs e)
        {
            cameraCapture.Mode = CameraCaptureMode.Still;
        }
        /// <summary>
        /// 长视频13分钟
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void menuItem5_Click(object sender, EventArgs e)
        {
            cameraCapture.Mode = CameraCaptureMode.VideoWithAudio;
        }

        //private void menuItem6_Click(object sender, EventArgs e)
        //{
        //    if (filname != "")
        //    {
        //        SelectPictureDialog ch = new SelectPictureDialog();
        //        ch.ShowDialog();
        //    }
        //}

        private void menuItem7_Click(object sender, EventArgs e)
        {
            //if (filname != "")
            //{
            //    try
            //    {
            //        StreamWriter sr0 = new StreamWriter(@"\My Documents\测试2" + filname.Substring(filname.LastIndexOf("\\")));
            //        Stream sr1 = File.OpenRead(filname);
            //        byte[] bs = new byte[sr1.Length];
            //        sr1.Read(bs, 0, (int)sr1.Length);
            //        sr0.Write(bs);
            //    }
            //    catch (Exception)
            //    {
            //        throw;
            //    }
            //}
        }
    }
}