C#-string生成图片

   public static Bitmap GetLink(string Wordstr)

        {

            #region older

            //arial

            //StrForImg sf = new StrForImg();

            //sf.Adaptable = false;

            //sf.BackgroundImage = "";

            //sf.BgColor = Color.White;

            //sf.FontFamily = "arial";

            //sf.FontSize = 10;

            //sf.FontStyle = FontStyle.Regular;

            //sf.Height = 15;

            //sf.Text = Wordstr;

            //sf.Width = Wordstr.Length * 10;

            //sf.ResultImage = "c:\\a.bmp";

            //sf.Top = 0;

            //sf.Left = 0;

            //Color bl = Color.Green;

            //sf.Alpha = bl.A;

            //sf.Red = bl.R;

            //sf.Green = bl.G;

            //sf.Blue = bl.B;

            //try

            //{

            //    return sf.Create();

            //}

            //catch { return null; }

            #endregion

            try

            {

                Size TextSize = TextRenderer.MeasureText(Wordstr, new Font(new FontFamily("Arial"), 10, FontStyle.Regular));

                Bitmap b = StrForImg_New.DrawTextBmp(Wordstr, new Font(new FontFamily("Arial"), 10, FontStyle.Regular), Color.FromArgb(0,128,0), TextSize, 0, 0, 0, 0);

                b = StrForImg_New.ClearWhite(b);

                return b;

            }

            catch { return null; }

        }

public static Bitmap DrawTextBmp(string ch, Font font, Color color, Size TextSize, int x, int y, int w, int h)

        {

            //创建此大小的图片

            Bitmap bmp = new Bitmap(TextSize.Width - x, TextSize.Height - y);

            //使用GDI+绘制

            Graphics g = Graphics.FromImage(bmp);

            bmp = new Bitmap(TextSize.Width - x, TextSize.Height - y, PixelFormat.Format64bppArgb);

            g = Graphics.FromImage(bmp);

            g.Clear(Color.White);

            g.DrawString(ch, font, new SolidBrush(color), new PointF(w, h));

            g.Save();

            g.Dispose();

            //返回图像

            return bmp;

        }

//去白边

        public static Bitmap ClearWhite(Bitmap bm)

        {

            int y_l = 0;//左边

            int y_r = 0;//右边

            int i_h = 0;//上边

            int i_d = 0;//下边

            #region 计算----

            for (int i = 0; i < bm.Width; i++)

            {

                for(int y=0;y<bm.Height;y++)

                {

                    if (bm.GetPixel(i, y).R != 255 || bm.GetPixel(i, y).B != 255 || bm.GetPixel(i, y).G != 255)

                    {

                        y_l = i;

                        goto yl;

                    }

                }

            }

            yl:

            for (int i = 0; i < bm.Width; i++)

            {

                for (int y = 0; y < bm.Height; y++)

                {

                    if (bm.GetPixel(bm.Width - i - 1, y).R != 255 || bm.GetPixel(bm.Width - i - 1, y).B != 255 || bm.GetPixel(bm.Width - i - 1, y).G != 255)

                    {

                        y_r = i;

                        goto yr;

                    }

                }

            }

            yr:

            for (int i = 0; i < bm.Height; i++)

            {

                for (int y = 0; y < bm.Width; y++)

                {

                    if (bm.GetPixel(y, i).R != 255 || bm.GetPixel(y, i).B != 255 || bm.GetPixel(y, i).G != 255)

                    {

                        i_h = i;

                        goto ih;

                    }

                }

            }

            ih:

            for (int i = 0; i < bm.Height; i++)

            {

                for (int y = 0; y < bm.Width; y++)

                {

                    if (bm.GetPixel(y, bm.Height - i - 1).R != 255 || bm.GetPixel(y, bm.Height - i - 1).B != 255 || bm.GetPixel(y, bm.Height - i - 1).G != 255)

                    {

                         i_d = i;

                         goto id;

                    }

                }

            }

        id:

            #endregion

            //创建此大小的图片

            Bitmap bmp = new Bitmap(bm.Width - y_l - y_r, bm.Height - i_h - i_d);

            Graphics g = Graphics.FromImage(bmp);

            //(new Point(y_l, i_h), new Point(0, 0), new Size(bm.Width - y_l - y_r, bm.Height - i_h - i_d));

            Rectangle sourceRectangle = new Rectangle(y_l, i_h, bm.Width - y_l - y_r, bm.Height - i_h - i_d);

            Rectangle resultRectangle = new Rectangle(0, 0, bm.Width - y_l - y_r, bm.Height - i_h - i_d);

            g.DrawImage(bm, resultRectangle, sourceRectangle, GraphicsUnit.Pixel);

            return bmp;

        }
巴特西

C#-string生成图片

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