C#教程之C#监控文件夹并自动给图片文件打水印的

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C#教程之C#监控文件夹并自动给图片文件打水印的

本文实例讲述了C#监控文件夹并自动给图片文件打水印的方法。分享给大家供大家参考。具体分析如下：

个人私心的缘故，经常写一些博客之类的文章，由于看到网络上面好多同志转载后不标明出处，所以特地写了这么一个小程序，这个小程序的功能是当我在页面上通过QQ截图之后，把截到的图片保存到一个指定的路径，然后工具自动帮我把图片上面加上水印。

下面是全部代码：

								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.IO;

								namespace FolderWatcher

								{

								  public partial class Form1 : Form

								  {

								    public Form1()

								    {

								      InitializeComponent();

								    }

								    private static string text = "http://www.cnblogs.com/zhuzhenyu";

								    private static string path = @"E:\FolderWatcher";

								    private void button1_Click(object sender, EventArgs e)

								    {

								      if (!string.IsNullOrEmpty(this.textBox1.Text))

								      {

								        path = this.textBox1.Text;

								      }

								      if (!string.IsNullOrEmpty(this.textBox2.Text))

								      {

								        text = this.textBox2.Text;

								      }

								      WatcherStrat(path, "*.*");

								    }

								    private static void WatcherStrat(string path, string filter)

								    {

								      FileSystemWatcher watcher = new FileSystemWatcher();

								      watcher.Path = path;

								      watcher.Filter = filter;

								      watcher.Created += new FileSystemEventHandler(OnProcess);

								      watcher.EnableRaisingEvents = true;

								      watcher.NotifyFilter = NotifyFilters.Attributes | NotifyFilters.CreationTime | NotifyFilters.DirectoryName | NotifyFilters.FileName | NotifyFilters.LastAccess

								                  | NotifyFilters.LastWrite | NotifyFilters.Security | NotifyFilters.Size;

								      watcher.IncludeSubdirectories = true;

								    }

								    private static void OnProcess(object source, FileSystemEventArgs e)

								    {

								      if (e.ChangeType == WatcherChangeTypes.Created)

								      {

								        OnCreated(source, e);

								      }

								    }

								    private static void OnCreated(object source, FileSystemEventArgs e)

								    {

								      if (e.FullPath.IndexOf("_new.") < 0)

								      {

								        FinePic(e.FullPath, text, e.FullPath.Replace(".", "_new."), new Font("宋体", 15, FontStyle.Bold));

								      }

								    }

								    /// <summary>

								    /// 图片水印

								    /// </summary>

								    /// <param name="FileName">源文件路径</param>

								    /// <param name="wText">水印文字</param>

								    /// <param name="savePath">保存路径</param>

								    /// <param name="font">字体样式</param>

								    public static void FinePic(string FileName, string wText, string savePath, Font font)

								    {

								      Bitmap bmp = new Bitmap(FileName);

								      System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(bmp);

								      g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;

								      g.DrawString(wText, font, new SolidBrush(Color.FromArgb(70, Color.Red)), 60, bmp.Height - 120);//加水印

								      bmp.Save(savePath, System.Drawing.Imaging.ImageFormat.Jpeg);

								    }

								  }

								}

来看一下效果

这里的代码非常简单，大家不要喷我

我是一只辛勤耕耘的蚂蚁

希望本文所述对大家的C#程序设计有所帮助。

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