private int printNum = 0;//多页打印
private string imageFile = "";//单个图片文件
private ArrayList fileList = new ArrayList();//多个图片文件
private void button2_Click_1(object sender, EventArgs e)
{
PrintPreview();
}
public void PrintPreview()
{
PrintDocument docToPrint = new PrintDocument();
docToPrint.BeginPrint += new System.Drawing.Printing.PrintEventHandler(this.docToPrint_BeginPrint);
docToPrint.EndPrint += new System.Drawing.Printing.PrintEventHandler(this.docToPrint_EndPrint);
docToPrint.PrintPage += new System.Drawing.Printing.PrintPageEventHandler(this.docToPrint_PrintPage);
docToPrint.DefaultPageSettings.Landscape = false;
PrintDialog printDialog = new PrintDialog();
printDialog.AllowSomePages = true;
printDialog.ShowHelp = true;
printDialog.Document = docToPrint;
if (printDialog.ShowDialog() == DialogResult.OK)
{
docToPrint.Print();
}
}
private void docToPrint_BeginPrint(object sender, System.Drawing.Printing.PrintEventArgs e)
{
if (fileList.Count == 0)
fileList.Add(imageFile);
}
private void docToPrint_EndPrint(object sender, System.Drawing.Printing.PrintEventArgs e)
{
}
private void docToPrint_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
{
FileStream fsa = new FileStream(fileList[printNum].ToString().Trim(), FileMode.Open);
byte[] bytes = new byte[fsa.Length];
fsa.Read(bytes, 0, bytes.Length);
fsa.Close();
MemoryStream ms = new MemoryStream(bytes);
Bitmap image = new Bitmap(ms);
//pictureBox1.Image = image;
//图片抗锯齿
e.Graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
Stream fs = new FileStream(fileList[printNum].ToString().Trim(), FileMode.Open, FileAccess.Read);
//System.Drawing.Image image = System.Drawing.Image.FromStream(fs);
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;
}
//DrawImage参数根据打印机和图片大小自行调整
System.Drawing.Rectangle destRect = new System.Drawing.Rectangle(x, y, width, height);
//System.Drawing.Rectangle destRect = new System.Drawing.Rectangle(0, 0, width, height);
if (image.Height < 310)
{
e.Graphics.DrawImage(image, 0, 30, image.Width + 20, image.Height);
// System.Drawing.Rectangle destRect1 = new System.Drawing.Rectangle(0, 30, image.Width, image.Height);
// e.Graphics.DrawImage(image, destRect1, 0, 0, image.Width, image.Height, System.Drawing.GraphicsUnit.Pixel);
}
else
{
// e.Graphics.DrawImage(image, 0, 0, 800, 1123);
// System.Drawing.Rectangle destRect2 = new System.Drawing.Rectangle(0, 0, image.Width, image.Height);
System.Drawing.Rectangle destRect2 = new System.Drawing.Rectangle(x, y, width, height);
e.Graphics.DrawImage(image, destRect2, 0, 0, image.Width, image.Height, System.Drawing.GraphicsUnit.Pixel);
}
if (printNum < fileList.Count - 1)
{
printNum++;
e.HasMorePages = true;//HasMorePages为true则再次运行PrintPage事件
return;
}
printNum = 0;
e.HasMorePages = false;
image.Dispose();
fs.Dispose();
fs.Close();
}
文章浏览阅读119次。该楼层疑似违规已被系统折叠隐藏此楼查看此楼/***Getaparametervalue**@paramkeyString*@paramdefString*@returnString*/publicStringgetParameter(Stringkey,Stringdef){returnisStandalone?System.getProperty(ke..._java http隧道
文章浏览阅读913次。IP主机名备注192.168.117.14keepalived-master主节点192.168.117.15keepalived-slaver备节点192.168.117.100VIP1.主备节点均安装keepalived# yum install -y keepalived httpd2.主备节点均修改keepalived日志存放路径..._keepalived sendmail
文章浏览阅读469次。--==========================================--SPFILE错误导致数据库无法启动(ORA-01565)--========================================== SPFILE错误导致数据库无法启动 SQL> startup ORA-01078: failurein proce_ora01565 ora27046
文章浏览阅读6.1k次,点赞2次,收藏54次。功能测试基础知识总结_功能测试
文章浏览阅读3.2k次,点赞3次,收藏2次。pg 中文首字母排序_pg中文排序
文章浏览阅读3.1w次,点赞23次,收藏109次。本文主要讲解CONVERT函数_mysql convert
文章浏览阅读8.6k次,点赞2次,收藏2次。HTML5 的视频播放事件想必大家已经期待很久了吧,在HTML4.1、4.0之前我们如果在网页上播放视频无外乎两种方法: 第一种:安装FLASH插件或者微软发布的插件 第二种:在本地安装播放器,在线播放组件之类的 因为并不是所有的浏览器都安装了FLASH插件,就算安装也不一定所有的都能安装成功。像苹果系统就是默认禁用FLASH的,安卓虽然一开始的时候支持FLASH,但是在安卓4.0以后也开始不_微信开发者工具视频快进
文章浏览阅读5.4k次,点赞3次,收藏4次。在使用redis的过程常见错误总结1.JedisConnectionException Connection Reset参考这边文章:Connection reset原因分析和解决方案https://blog.csdn.net/cwclw/article/details/527971311.1问题描述Exception in thread "main" redis.clients...._jedisconnectionexception: java.net.socketexception: connection reset
文章浏览阅读8.3k次,点赞8次,收藏42次。目录1.Lua垃圾回收算法原理简述2.Lua垃圾回收中的三种颜色3.Lua垃圾回收详细过程4.步骤源码详解4.1新建对象阶段4.2触发条件4.3 GC函数状态机4.4标记阶段4.5清除阶段5.总结参考资料lua垃圾回收(Garbage Collect)是lua中一个比较重要的部分。由于lua源码版本变迁,目前大多数有关这个方面的文章都还是基于lua5.1版本,有一定的滞后性。因此本文通过参考当前..._lua5.3 gc
文章浏览阅读511次。最近家中的潮人,老妈闲着没事干,开始学玩电脑,引起他的各种好奇心。如看看新闻,上上微信或做做其他的事情。但意料之中的是电脑上会莫名出现各种问题?不翼而飞的图标?照片又不见了?文件被删了,卡机或者黑屏,无声音了,等等问题。常常让她束手无策,求助于我,可惜在电话中说不清,往往只能苦等我回家后才能解决,那种开心乐趣一下子消失了。想想,这样也不是办法啊, 于是,我潜心寻找了两款优秀的远程控制软件。两款软件...
文章浏览阅读1.8k次。二.初始化工作空间三.设置下载地址四.下载功能包此处可能会报错,请看:rosdep update遇到ERROR: error loading sources list: The read operation timed out问题_DD᭄ꦿng的博客-程序员宅基地接下来一次安装所有功能包,注意对应ROS版本 五.编译功能包isolated:单独编译各个功能包,每个功能包之间不产生依赖。编译过程时间比较长,可能需要几分钟时间。此处可能会报错:缺少absl依赖包_ros18.04 安装ca
文章浏览阅读4.1k次,点赞3次,收藏7次。Haobor2.2.1配置(trivy扫描器、镜像签名)docker-compose下载https://github.com/docker/compose/releases安装cp docker-compose /usr/local/binchmod +x /usr/local/bin/docker-composeharbor下载https://github.com/goharbor/harbor/releases解压tar xf xxx.tgx配置harbor根下建立:mkd_init error: db error: failed to download vulnerability db: database download