这段代码在那里设置打水印坐标呢?

[aocl170]

    protected void AddWaterPic(string Path, string Path_syp, string Path_sypf)
    {
        System.Drawing.Image image = System.Drawing.Image.FromFile(Path);
        System.Drawing.Image copyImage = System.Drawing.Image.FromFile(Path_sypf);
        System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(image);
        g.DrawImage(copyImage, new System.Drawing.Rectangle(image.Width - copyImage.Width, image.Height - copyImage.Height, copyImage.Width, copyImage.Height), 0,0, copyImage.Width, copyImage.Height, System.Drawing.GraphicsUnit.Pixel);
        g.Dispose();

        image.Save(Path_syp);
        image.Dispose();
    }

如果这段代码中没有,各位可以帮我加上吗?

[aocl170]

楼上兄台，我不大明你代码，能不能给个完整例子？

[雨打青衫]

示例：

using System;
using System.Web;
using System.Drawing;
using FileImage;

public partial class CreateWaterMark : System.Web.UI.Page
{
    private string url = string.Empty;
    protected void Page_Load(object sender, EventArgs e)
    {
        //获取被创建水印图图像的地址
        if (Request.Params["SourceImageUrl"] != null)
        {
            url = Request.Params["SourceImageUrl"].ToString();
        }
        if (string.IsNullOrEmpty(url) == true) return;
        ///设置源图和水印图的地址
        string sourcePath = Server.MapPath(FileImageSystem.STOREFILEPATH + url);
        string watermarkUrl = FileImageSystem.STOREWATERMARKIMAGEPATH + url;
        string watermarkPath = Server.MapPath(watermarkUrl);
        int startIndex = url.IndexOf("/") + 1;
        int endIndex = url.LastIndexOf(".");
        string watermark = url.Substring(startIndex, endIndex - startIndex);
        ///创建水印图
        CreateWatermarkImage(sourcePath, watermarkPath, watermark);
        ///输出水印图的信息
        Response.Write("创建图像（" + url + "）的水印图成功，保存文文件：" + watermarkUrl + "<br />");
        ///显示水印图片
        imgWatermark.ImageUrl = watermarkUrl;
    }

    /// <summary>
    /// 创建水印图
    /// </summary>
    /// <param name="sourcePath">源图路径（物理路径）</param>
    /// <param name="watermarkPath">保存水印图路径（物理路径）</param>
    /// <param name="watermark">水印文字</param>
    private void CreateWatermarkImage(string sourcePath, string watermarkPath, string watermark)
    {
        Image sourceImage = Image.FromFile(sourcePath);
        ///根据源图的大小创建一个新的bmp图片
        Image watermarkImage = new Bitmap(sourceImage.Width, sourceImage.Height);
        ///创建Graphics对象g
        Graphics g = Graphics.FromImage(watermarkImage);
        ///设置高质量插值法
        g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High;
        ///设置高质量,低速度呈现平滑程度
        g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
        ///清空画布，并把背景色设置为透明
        g.Clear(System.Drawing.Color.Transparent);
        ///创建水印图，并绘制源图
        g.DrawImage(sourceImage,
            new System.Drawing.Rectangle(0, 0, sourceImage.Width, sourceImage.Height),
            new System.Drawing.Rectangle(0, 0, sourceImage.Width, sourceImage.Height),
            System.Drawing.GraphicsUnit.Pixel);

        ///创建字体和画笔
        Font font = new Font("宋体", 48f, FontStyle.Bold);
        Brush brush = new SolidBrush(Color.Red);
        g.DrawString(watermark, font, brush, 50, 50);

        try
        {   ///保存水印图，其格式和原图格式相同。
            watermarkImage.Save(watermarkPath, sourceImage.RawFormat);
        }
        catch (Exception ex)
        {
            throw new Exception(ex.Message);
        }
        finally
        {   ///释放资源
            sourceImage.Dispose();
            watermarkImage.Dispose();
            g.Dispose();
        }
    }
}

[yoursWTR]

g.DrawImage(copyImage, new System.Drawing.Rectangle(image.Width - copyImage.Width, image.Height - copyImage.Height, copyImage.Width, copyImage.Height), 0,0, copyImage.Width, copyImage.Height, System.Drawing.GraphicsUnit.Pixel);
g.Dispose();

[yoursWTR]

你可以把图片处理写成类方便应用,定位水印你可以写成这样,

 
       /// <summary>
        /// 水印位置
        /// </summary>
        public enum WatermarkPosition
        {
            /// <summary>
            /// 左上
            /// </summary>
            LeftTop,
            /// <summary>
            /// 左中
            /// </summary>
            Left,
            /// <summary>
            /// 左下
            /// </summary>
            LeftBottom,

            /// <summary>
            /// 正上
            /// </summary>
            Top,
            /// <summary>
            /// 正中
            /// </summary>
            Center,
            /// <summary>
            /// 正下
            /// </summary>
            Bottom,

            /// <summary>
            /// 右上
            /// </summary>
            RightTop,
            /// <summary>
            /// 右中
            /// </summary>
            RightCenter,
            /// <summary>
            /// 右下
            /// </summary>
            RigthBottom
        }


        /// <summary>
        /// 设置水印位置
        /// </summary>
        /// <param name="positon">枚举WatermarkPosition: WatermarkPosition</param>
        /// <param name="X">原图Width: int</param>
        /// <param name="Y">原图Height: int</param>
        /// <param name="x">水印图Width: int</param>
        /// <param name="y">水印图Height: int</param>
        /// <param name="i">边距: int</param>
        /// <returns>返回Rectangle: Rectangle</returns>
        private Rectangle GetWatermarkRectangle(WatermarkPosition positon, int X, int Y, int x, int y, int i)
        {
            switch (positon)
            {
                case WatermarkPosition.LeftTop:
                    return new Rectangle(i, i, x, y);
                case WatermarkPosition.Left:
                    return new Rectangle(i, (Y - y) / 2, x, y);
                case WatermarkPosition.LeftBottom:
                    return new Rectangle(i, Y - y - i, x, y);
                case WatermarkPosition.Top:
                    return new Rectangle((X - x) / 2, i, x, y);
                case WatermarkPosition.Center:
                    return new Rectangle((X - x) / 2, (Y - y) / 2, x, y);
                case WatermarkPosition.Bottom:
                    return new Rectangle((X - x) / 2, Y - y - i, x, y);
                case WatermarkPosition.RightTop:
                    return new Rectangle(X - x - i, i, x, y);
                case WatermarkPosition.RightCenter:
                    return new Rectangle(X - x - i, (Y - y) / 2, x, y);
                default:
                    return new Rectangle(X - x - i, Y - y - i, x, y);
            }
        }

//watermark:水印Image, position: WatermarkPosition, source: 原图Image
graphics.DrawImage(watermark, GetWatermarkRectangle(position, source.Width, source.Height, watermark.Width, watermark.Height, margin));
最后定位时