ASP.NET2.0(c#)图片上传源码(22)

  //For this example we will place the watermark in the upper right
  //hand corner of the photograph. offset down 10 pixels and to the
  //left 10 pixles

  int xPosOfWm = ((phWidth - wmWidth)-10);
  int yPosOfWm = 10;

  grWatermark.DrawImage(imgWatermark,
   new Rectangle(xPosOfWm,yPosOfWm,wmWidth,wmHeight),  //Set the detination Position
   0,                  // x-coordinate of the portion of the source image to draw.
   0,                  // y-coordinate of the portion of the source image to draw.
   wmWidth,            // Watermark Width
   wmHeight,      // Watermark Height
   GraphicsUnit.Pixel, // Unit of measurment
   imageAttributes);   //ImageAttributes Object

  //Replace the original photgraphs bitmap with the new Bitmap
  imgPhoto = bmWatermark;
  grPhoto.Dispose();
  grWatermark.Dispose();

  //save new image to file system.
  imgPhoto.Save(WorkingDirectory + ImageName +"_finally.jpg", ImageFormat.Jpeg);
  imgPhoto.Dispose();
  imgWatermark.Dispose();

 }

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