将Windows窗体转换为pdf文件
我如何将Windows窗体转换为pdf（pdf文档）格式，其设计与表单相同
我测试了它，它的工作原理。 我不喜欢它创建临时文件的事实。
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using System.Drawing.Imaging; using System.Drawing.Printing; using System.IO; namespace WindowsFormsApplication4 { public partial class Form1 : Form { private System.IO.Stream streamToPrint; string streamType; [System.Runtime.InteropServices.DllImportAttribute("gdi32.dll")] private static extern bool BitBlt ( IntPtr hdcDest, // handle to destination DC int nXDest, // x-coord of destination upper-left corner int nYDest, // y-coord of destination upper-left corner int nWidth, // width of destination rectangle int nHeight, // height of destination rectangle IntPtr hdcSrc, // handle to source DC int nXSrc, // x-coordinate of source upper-left corner int nYSrc, // y-coordinate of source upper-left corner System.Int32 dwRop // raster operation code ); private void printDocument1_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e) { System.Drawing.Image image = System.Drawing.Image.FromStream(this.streamToPrint); int x = e.MarginBounds.X; int y = e.MarginBounds.Y; int width = image.Width; int height = image.Height; if ((width / e.MarginBounds.Width) > (height / e.MarginBounds.Height)) { width = e.MarginBounds.Width; height = image.Height * e.MarginBounds.Width / image.Width; } else { height = e.MarginBounds.Height; width = image.Width * e.MarginBounds.Height / image.Height; } System.Drawing.Rectangle destRect = new System.Drawing.Rectangle(x, y, width, height); e.Graphics.DrawImage(image, destRect, 0, 0, image.Width, image.Height, System.Drawing.GraphicsUnit.Pixel); } private void button1_Click(object sender, EventArgs e) { String filename = System.IO.Path.GetTempFileName(); Graphics g1 = this.CreateGraphics(); Image MyImage = new Bitmap(this.ClientRectangle.Width, this.ClientRectangle.Height, g1); Graphics g2 = Graphics.FromImage(MyImage); IntPtr dc1 = g1.GetHdc(); IntPtr dc2 = g2.GetHdc(); BitBlt(dc2, 0, 0, this.ClientRectangle.Width, this.ClientRectangle.Height, dc1, 0, 0, 13369376); g1.ReleaseHdc(dc1); g2.ReleaseHdc(dc2); MyImage.Save(filename, ImageFormat.Png); FileStream fileStream = new FileStream(filename, FileMode.Open, FileAccess.Read); StartPrint(fileStream, "Image"); fileStream.Close(); if (System.IO.File.Exists(filename)) { System.IO.File.Delete(filename); } } public void StartPrint(Stream streamToPrint, string streamType) { this.printDocument1.PrintPage += new PrintPageEventHandler(printDocument1_PrintPage); this.streamToPrint = streamToPrint; this.streamType = streamType; System.Windows.Forms.PrintDialog PrintDialog1 = new PrintDialog(); PrintDialog1.AllowSomePages = true; PrintDialog1.ShowHelp = true; PrintDialog1.Document = printDocument1; DialogResult result = PrintDialog1.ShowDialog(); if (result == DialogResult.OK) { printDocument1.Print(); } } public Form1() { InitializeComponent(); } } }
看看这个问题（我已经回答过），因为你的问题看起来很相似：
如何在c＃中的Winform应用程序中打印图像数组？
希望这可以帮助。
以前可能会遇到同样的问题并且对此问题有一些有用的建议： 将WinForm保存为PDF并打印多页WinForm