asp.Netで画像ファイルをアップロードして偽造防止画像の透かしを実現し、データベースに書き込む

 
  
//        
  
using System; 
  
using System.Collections; 
  
using System.ComponentModel; 
  
using System.Data; 
  
using System.Data.SqlClient; 
  
using System.Drawing; 
  
using System.Drawing.Drawing2D; 
  
using System.Drawing.Imaging; 
  
using System.Web; 
  
using System.Configuration; 
  
 
  
//    
  
public void AddUser(string PersonName, string PersonEmail, string PersonSex, string PersonDOB, string PersonImage, string PersonImageType) 
  
{ 
  
string strImageType = userImage.PostedFile.ContentType; 
  
Stream ImageStream = userImage.PostedFile.InputStream; 
  
 
  
//    -----------------> 
  
string wImageFile = Server.MapPath("/bkwww/image/HomeSign.gif"); //        
  
Image sImage = Image.FromStream(ImageStream); //   Http       image 
  
Image wImage = Image.FromFile(wImageFile); 
  
 
  
//    
  
Graphics g = Graphics.FromImage(sImage); 
  
g.DrawImage(wImage, new Rectangle(0, 0, wImage.Width, wImage.Height), 0, 0, wImage.Width, wImage.Height, GraphicsUnit.Pixel); 
  
 
  
//   ，   image     byte[] 
  
MemoryStream ms=new MemoryStream(); 
  
byte[] myImage=null; 
  
sImage.Save(ms, ImageFormat.Gif); 
  
myImage = ms.GetBuffer(); 
  
//------------------------> 
  
 
  
 
  
 
  
//       
  
string strConn = ConfigurationSettings.AppSettings["ConnectionString"]; 
  
SqlConnection myConnection = new SqlConnection(strConn); 
  
SqlCommand myCommand = new SqlCommand("sp_person_isp", myConnection); 
  
myCommand.CommandType = CommandType.StoredProcedure; 
  
 
  
myCommand.Parameters.Add("@PersonEmail", SqlDbType.VarChar, 255).Value = PersonEmail; 
  
myCommand.Parameters.Add("@PersonName", SqlDbType.VarChar, 255).Value = PersonName; 
  
myCommand.Parameters.Add("@PersonSex", SqlDbType.Char, 1); 
  
if(sexMale.Checked) 
  
myCommand.Parameters["@PersonSex"].Value = "M"; 
  
else 
  
myCommand.Parameters["@PersonSex"].Value = "F"; 
  
myCommand.Parameters.Add("@PersonDOB", SqlDbType.DateTime).Value = PersonDOB; 
  
myCommand.Parameters.Add("@PersonImage", SqlDbType.Image).Value = myImage; 
  
myCommand.Parameters.Add("@PersonImageType", SqlDbType.VarChar, 255).Value = ImageType; 
  
 
  
try 
  
{ 
  
myConnection.Open(); 
  
myCommand.ExecuteNonQuery(); 
  
myConnection.Close(); 
  
Response.Write("    ！"); 
  
} 
  
catch(System.Exception SqlEx) 
  
{ 
  
Response.Write("    ！"+SqlEx.ToString()); 
  
} 
  
}