Form1.cs

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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;
using System.Drawing.Imaging;
using System.Runtime.InteropServices;
using System.Threading;

namespace 摄像头驱动
{
    public partial class Main : Form
    {
        private const int WM_USER = 0x400;
        private const int WS_CHILD = 0x40000000;
        private const int WS_VISIBLE = 0x10000000;
        private const int SWP_NOMOVE = 0x2;
        private const int SWP_NOZORDER = 0x4;
        private const int WM_CAP_START = WM_USER;
        private const int WM_CAP_STOP = WM_CAP_START + 68;
        private const int WM_CAP_SEQUENCE = WM_CAP_START + 62;
        private const int WM_CAP_FILE_SET_CAPTURE_FILEA = WM_CAP_START + 20;
      
        public Main()
        {
            InitializeComponent();
        }
        private Camera wc;
        private void but_start_Click(object sender, EventArgs e)
        {
           // 下载于www.51aspx.com
            this.wc = new Camera(this.panelPreview.Handle, this.panelPreview.Width, this.panelPreview.Height);
            this.wc.StartWebCam();
        }

        private void but_stop_Click(object sender, EventArgs e)
        {
            Video.SendMessage(wc.lwndC, 0x40b, 0, 0);
           // Video.DestroyWindow(wc.lwndC);
            this.wc.CloseWebcam();
        }

        private void but_cut_Click(object sender, EventArgs e)
        {
            try
            {
                Video.SendMessage(wc.lwndC, 0x41e, 0, 0);
                IDataObject obj1 = Clipboard.GetDataObject();
                if (obj1.GetDataPresent(typeof(Bitmap)))
                {
                    Image image1 = (Image)obj1.GetData(typeof(Bitmap));
                    SaveFileDialog SaveFileDialog1 = new SaveFileDialog();
                    SaveFileDialog1.FileName = DateTime.Now.ToString("yyyyMMddhhmmss");
                    SaveFileDialog1.Filter = "Image Files(*.JPG;*.GIF)|*.JPG;*.GIF|All files (*.*)|*.*";
                    if (SaveFileDialog1.ShowDialog() == DialogResult.OK)
                    {
                        image1.Save(SaveFileDialog1.FileName, ImageFormat.Bmp);