问高手Graphics的问题，怎么在Web页面里面画东西，再线等

Question

private void Page_Load(object sender, System.EventArgs e)
{
// Put user code to initialize the page here
string strToWrite;

strToWrite="胃,你好吗,哈哈"; System.Drawing.Image img = System.Drawing.Image.FromFile(@"d:\monitor.jpg");
Graphics gh=Graphics.FromImage(img); Font font= new Font("Arial",12, FontStyle.Bold);
SizeF size = gh.MeasureString(strToWrite,font); StringFormat sf=new StringFormat();
sf.Alignment=StringAlignment.Center;
sf.LineAlignment=StringAlignment.Center; gh.DrawString(strToWrite,font,Brushes.White,(img.Width )/2,(img.Height)/2,sf);
gh.DrawImage(img,0,0); Stream wStream=new System.IO.MemoryStream(); img.Save(wStream,ImageFormat.Jpeg); wStream.Position=0; byte[] buffer=new byte[wStream.Length];
wStream.Read(buffer,0,(int)wStream.Length); Response.BinaryWrite(buffer);
}