/// <summary>        /// 圖片裁剪，生成新圖，保存在同一目錄下,名字加_new，格式1.png 新圖1_new.png        /// </summary>        /// <param name="picPath">要修改圖片完整路徑</param>        /// <param name="x">修改起點x坐標</param>        /// <param name="y">修改起點y坐標</param>        /// <param name="width">新圖寬度</param>        /// <param name="height">新圖高度</param>        public static void caijianpic(String picPath,int x,int y,int width,int height)        {            //圖片路徑            String oldPath = picPath;            //新圖片路徑            String newPath = System.IO.Path.GetExtension(oldPath);            //計算新的文件名，在舊文件名后加_new            newPath = oldPath.Substring(0, oldPath.Length - newPath.Length) + "_new" + newPath;            //定義截取矩形            System.Drawing.Rectangle cropArea = new System.Drawing.Rectangle(x, y, width, height);            //要截取的區域大小            //加載圖片            System.Drawing.Image img = System.Drawing.Image.FromStream(new System.IO.MemoryStream(System.IO.File.ReadAllBytes(oldPath)));            //判斷超出的位置否            if ((img.Width < x + width) || img.Height < y + height)            {                MessageBox.Show("裁剪尺寸超出原有尺寸！");                img.Dispose();                return;            }            //定義Bitmap對象            System.Drawing.Bitmap bmpImage = new System.Drawing.Bitmap(img);            //進行裁剪            System.Drawing.Bitmap bmpCrop = bmpImage.Clone(cropArea, bmpImage.PixelFormat);            //保存成新文件            bmpCrop.Save(newPath);            //釋放對象            img.Dispose(); bmpCrop.Dispose();        }
        /// <summary>        /// 調用此函數后使此兩種圖片合并，類似相冊，有個        /// 背景圖，中間貼自己的目標圖片        /// </summary>        /// <param name="sourceImg">粘貼的源圖片</param>        /// <param name="destImg">粘貼的目標圖片</param>        public static Image CombinImage(string sourceImg, string destImg)        {            Image imgBack = System.Drawing.Image.FromFile(sourceImg); //相框圖片             Image img = System.Drawing.Image.FromFile(destImg); //照片圖片            //從指定的System.Drawing.Image創建新的System.Drawing.Graphics                   Graphics g = Graphics.FromImage(imgBack);            //g.DrawImage(imgBack, 0, 0, 148, 124); // g.DrawImage(imgBack, 0, 0, 相框寬, 相框高);            g.FillRectangle(System.Drawing.Brushes.Black, -50, -50, (int)212, ((int)203));//相片四周刷一層黑色邊框，這里沒有，需要調尺寸            //g.DrawImage(img, 照片與相框的左邊距, 照片與相框的上邊距, 照片寬, 照片高);            g.DrawImage(img, -50, -50, 212, 203);            GC.Collect();            string saveImagePath ="D:/測試文件夾/sss.png";            //save new image to file system.            imgBack.Save(saveImagePath, ImageFormat.Png);            return imgBack;        }