在打印假脱机程序C＃中为文档添加水印 [英] Add a watermark to a document in the print spooler C#

问题描述

我使用Windows API函数来监控printjob并能够获取文档名称，作业ID，机器名称等信息。现在我成功使用jobid暂停当前的打印作业。现在的问题是我想在文档中添加水印并恢复打印机。我试图获取文档的完整路径，但Windows API打印中没有数据结构。任何帮助将不胜感激。



我尝试过：



尝试

Hi,

I am using Windows API functions to monitor a printjob and able to get the information like document name, job id, machine name etc. Now I paused the current print job by using the jobid successfully. The question is now I want to add a watermark to the document and resume the printer. I tried to get the Full path of the document but no data structure in Windows API printing gives it. Any help would be appreciated.

What I have tried:

Tried

PRINTER_NOTIFY_INFO_DATA 

structre

PrintQueue类

PrintSystemJobInfo类

structre
PrintQueue class
PrintSystemJobInfo class

推荐答案

Google是你的朋友：



Google - c＃在打印页面上添加水印 [ ^ ]

Google is your friend:

Google - c# add watermark to printed page[^]

我相信你< b> 不能 通过WinAPI为打印文档添加水印，因为打印队列与文件名列表不同。这是一个用他们的名字打印的作业列表，但这并不意味着你可以访问已经打印过的文档列表....

I believe you can't add a watermark to a printed document through the WinAPI, because a print queue is not the same as a list of filenames. It's a list of jobs to print with their names, but it doesn't mean you have an access to the list of documents, which are already printed....

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