C# 年会抽奖（图片+姓名）摄像头拍照示例源码

【实例截图】

【核心代码】

using System;
using System.Collections.Generic;
using System.Drawing;
using System.Windows.Forms;
using System.IO;


namespace ncpcjdev
{
    public partial class FormBegin : DevExpress.XtraEditors.XtraForm
    {
        List<String> names = new List<String>();
        int i;
        int namescount;
        string needdel;
        public Image CameraImage { get; set; }
        public FormBegin()
        {
            InitializeComponent();
            this.LookAndFeel.SkinName = "Money Twins";
            this.LookAndFeel.UseDefaultLookAndFeel = false;
        }

        private void btncapture_Click(object sender, EventArgs e)
        {
            if (this.cameraControl1.TakeSnapshot() != null)
            {
                this.CameraImage = this.cameraControl1.TakeSnapshot();
                this.pictureBox1.Image = this.CameraImage;
                txtsavestate.Visible = false;
                btnsave.Focus();
            }
            else
            {
                MessageBox.Show("请先连接摄像头！");
            }
        }
        private void FormBegin_FormClosed(object sender, FormClosedEventArgs e)
        {
            this.cameraControl1.Dispose();
            Application.Exit();
        }

        private void btnsave_Click(object sender, EventArgs e)
        {

            Image img = this.pictureBox1.Image;
            if (img == null)
            {
                MessageBox.Show("请选择图片");
                return;
            }
            Bitmap curBitmap = new Bitmap(img);

            if (curBitmap == null)
            {
                return;
            }
            try
            {
                string filrname = DateTime.Now.ToString("hhmmss")   ".jpg";
                img.Save(@"customer\"   filrname);
                img.Dispose();
                txtsavestate.Visible = true;
                this.pictureBox1.Image = null;
                btncapture.Focus();
            }
            catch
            {

            }

        }

        private void FormBegin_Load(object sender, EventArgs e)
        {
            if (this.Height > 900)
                this.picBox.Size = new Size(960, 540);
            else
                this.picBox.Size = new Size(640, 360);

            timer.Enabled = false;
            timer.Tick  = Timer_Tick;
            picBox.Visible = false;
            this.BackgroundImageLayout = ImageLayout.Zoom;

            this.picBox.Location = new Point((this.Width - picBox.Width) / 2, this.Height / 5);

            picBox.SizeMode = PictureBoxSizeMode.StretchImage;

            this.txttitle.Location = new Point(100, 60);
            this.txttitle.Size = new Size(this.Width - 200, 80);
            this.txttitle.BackColor = Color.Transparent;

            tabPage3.BackgroundImageLayout = ImageLayout.Stretch;
            tabPage3.BackgroundImage = Image.FromFile(@"bj.jpg");

        }
        private void Timer_Tick(object sender, EventArgs e)
        {
            Random rand = new Random();
            i = rand.Next(namescount);
            picBox.Image = Image.FromFile(names[i]);
            if (needdel != "")
                DeleteFile();
        }
        private void btnstart_Click(object sender, EventArgs e)
        {
            if (!picBox.Visible)
            {
                picBox.Visible = true;
                string path = @"customer";
                names = new List<String>(Directory.GetFiles(path));
                namescount = names.Count;
                btncapture.Focus();
                needdel = "";
            }
            if (timer.Enabled)
            {
                timer.Enabled = false;
                txttitle.Text = "恭 喜 中 奖";

                string filename = names[i].Replace("customer\\", "");
                CopyFile(filename);
                needdel = names[i];
                names.RemoveAt(i);
                namescount = names.Count;
            }
            else
            {
                if (namescount <= 1)
                {
                    MessageBox.Show("已经是最后一张照片！");
                    return;
                }
                txttitle.Text = "";
                timer.Enabled = true;
            }
        }
        private void CopyFile(string filename)
        {
            string sourceFile = @"customer\"   filename;
            string destinationFile = @"jiang\"   filename;
            if (File.Exists(sourceFile))
            {
                File.Copy(sourceFile, destinationFile, true);
            }
        }
        private void DeleteFile()
        {
            string fileToBeDeleted = needdel;
            if (File.Exists(fileToBeDeleted))
            {
                try
                {
                    File.Delete(fileToBeDeleted);
                    needdel = "";
                }
                catch { }
            }
        }
    }
}