我要评论本文实例讲述了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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