1. C#.net中,如何自动保存文件到指定位置
截的图保存到指定的路径例子如下：try { Screen scr = Screen.PrimaryScreen; Rectangle rc = scr.Bounds; int iWidth = rc.Width; int iHeight = rc.Height; Bitmap myImage = new Bitmap(iWidth, iHeight); Graphics gl = Graphics.FromImage(myImage); gl.CopyFromScreen(new Point(0, 0), new Point(0, 0), new Size(iWidth, iHeight)); _img = myImage; pictureBox1.Image = _img; // IntPtr dc1 = gl.GetHdc(); //gl.ReleaseHdc(dc1); _img.Save(@"C:\\1.jpeg"); //_img.Save("c:\\1.jpeg"); //SendFile("c:\\1.jpeg"); } catch (Exception ex) { MessageBox.Show("截屏失败！\n" + ex.Message.ToString() + "\n" + ex.StackTrace.ToString()); }解决代码如下：#region[方法] ///<summary> ///截屏 ///</summary> private void PrintScreen() { string Opath = @"C:/Picture"; if (Opath.Substring(Opath.Length – 1, 1) != @"/") Opath = Opath + @"/"; string photoname = DateTime.Now.Ticks.ToString(); string path1 = Opath + DateTime.Now.ToShortDateString(); if (!Directory.Exists(path1)) Directory.CreateDirectory(path1); try { Screen scr = Screen.PrimaryScreen; Rectangle rc = scr.Bounds; int iWidth = rc.Width; int iHeight = rc.Height; Bitmap myImage = new Bitmap(iWidth, iHeight); Graphics gl = Graphics.FromImage(myImage); gl.CopyFromScreen(new Point(0, 0), new Point(0, 0), new Size(iWidth, iHeight)); _img = myImage; //pictureBox1.Image = _img; // IntPtr dc1 = gl.GetHdc(); //gl.ReleaseHdc(dc1); MessageBox.Show(path1); MessageBox.Show(photoname); _img.Save(path1 + "//" + photoname + ".jpg", System.Drawing.Imaging.ImageFormat.Jpeg); // _img.Save("D:\\1.jpeg"); SendFile(path1+"//"+photoname+".jpg"); } catch (Exception ex) { MessageBox.Show("截屏失败！\n" + ex.Message.ToString() + "\n" + ex.StackTrace.ToString()); } // MessageBox.Show("12322222"); ///////////////////////////////////////////////////////// ///////////////////发送图片流/////////////////////////// /* MemoryStream ms = new MemoryStream(); byte[] imagedata = null; _img.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg); imagedata = ms.GetBuffer(); byte[] arrFile = new byte[1024 * 1024 * 2]; //读取文件内容到字节数组，并 获得 实际文件大小 int length = ms.Read(arrFile, 0, arrFile.Length); // int length = ms.Read(arrFile, 0, arrFile.Length); //定义一个 新数组，长度为文件实际长度 +1 byte[] arrFileFina = new byte[length + 1]; arrFileFina[0] = 2;//设置 数据标识位等于1，代表 发送的是文件 //将 图片流数据数组 复制到 新数组中，下标从1开始 //arrFile.CopyTo(arrFileFina, 1); Buffer.BlockCopy(arrFile, 0, arrFileFina, 1, length); //发送文件数据 sokClient.Send(arrFileFina);//, 0, length + 1, SocketFlags.None); //MessageBox.Show("我在这里！！！"); // byte[] arrMsg = System.Text.Encoding.UTF8.GetBytes(_img); MessageBox.Show("2222"); */ } #endregion
