输入文字在C＃中的位图图像 [英] Write text on a bitmap image in C#

问题描述

嗯，我尝试在C＃中的图像上写的，我的code是：

Well, I try to write on an image in C#, my code is:

public string WriteOnImage(Bitmap Image, string NameImage, string TextFileName)

    {
        string Message = "OK";
        try
        {
            Bitmap bitMapImage = new Bitmap(Image);

            using (Graphics graphImage = Graphics.FromImage(Image))

            {

                graphImage.SmoothingMode = SmoothingMode.AntiAlias;

                string line;

                // Read the file and display it line by line.
                StreamReader file = new StreamReader(Resources.C_PATH_DESTINO_IMG + TextFileName);
                while ((line = file.ReadLine()) != null)
                {
                    graphImage.DrawString(line, new Font("Courier New", 15, FontStyle.Bold), SystemBrushes.WindowText, new Point(0, 0));
                    HttpContext.Current.Response.ContentType = "image/jpeg";
                    bitMapImage.Save(Resources.C_PATH_DESTINO_IMG + NameImage, ImageFormat.Jpeg);
                    graphImage.Dispose();
                    bitMapImage.Dispose();
                }

                file.Close();
            }
            return Message;
        }
        catch (Exception ex)
        {
            EventLogWrite("Error: " + ex.Message);
            return Message = ex.Message;
        }
    }

这个方法不起作用，因为在图像上不写，请帮帮我吧。

this method doesn't work because doesn't write on the image, please help me.

PD：我很抱歉，我的英语，但我拉丁裔杰杰奥，谢谢

PD: I'm sorry for my english but I'm Latino jeje, thanks.

推荐答案

看起来你是在错误的位图绘制

It looks like you are drawing on the wrong bitmap

 Bitmap bitMapImage = new Bitmap(Image);
 using (Graphics graphImage = Graphics.FromImage(Image))

应

 Bitmap bitMapImage = new Bitmap(Image);
 using (Graphics graphImage = Graphics.FromImage(bitMapImage))

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