本文主要是介绍hh.exe参数（全），希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
题注：hh.exe是一个命令下打开chm文件的小程序。但是某天在csdn发现了某网友帖出的--hh.exe隐藏参数云云……嘿嘿……就像当年发现copy 1+2>3一样令人着迷，其实呢，hh.exe很普通。在cmd下输入： hh /? 发现屏幕没有任何反应，这是怎么回事？然后又输入：hh ntcmds.chm--在命令行帮助文档中也没发现hh.exe的踪影。那么它什么工具呢，为什么有它的存在，却没有它的说明？
于是去microsoft查找了一番，原来它是HTML Help Workshop命令行工具。那么什么是HTML Help Workshop，嘿嘿，告诉你吧--系统内所有编译的帮助文档（chm）都是出自它手。
看看它的参数：
| hh.exe | -800 | 将Help viewer设为800*600 |
| -title | 将chm以窗口800*600显示 | |
| -register | 注册hh.exe，将其设为默认的chm文档的shell | |
| -decompile | 反编译chm文件，就是将chm拆散开来，对于破坏狂和翻译人员比较有用，懒人就免了 | |
| -mapid | 如果你记住chm中htm、html的id，那么用它定位htm、html文件 | |
| -safe | 迫使hh.exe以安全模式打开chm。安全模式？就是所有的快捷键都失效 |
附：help帮助文件的快捷键
Keyboard Shortcuts in Help
| ALT+C | To switch to the Contents tab |
| ALT+F4 | To close the Help window |
| ALT+I | To switch to the Favorites tab |
| ALT+N | To switch to the Index tab |
| ALT+O | To display the Options menu |
| ALT+O, and then press B | To display the previously viewed topic |
| ALT+O, and then press F | To display the next topic in a previously displayed sequence of topics |
| ALT+O, and then press H | To return to the specified home page |
| ALT+O, and then press I | To open the Internet Options dialog box for Microsoft Internet Explorer, where you can change accessibility settings |
| ALT+O, and then press O | To turn search highlighting on or off |
| ALT+O, and then press P | To print all topics in a book or a selected topic only |
| ALT+O, and then press R | To refresh the topic (useful if you have linked to a Web page) |
| ALT+O, and then press S | To stop the Help window from opening a Help topic (useful if you want to stop a Web page from downloading) |
| ALT+O, and then press T | To hide or show the pane with the Contents, Index, Search, and Favorites tabs |
| ALT+S | To switch to the Search tab |
| CTRL+A | To select the entire Help topic |
| CTRL+C | To copy the selected items to the Clipboard |
| CTRL+P | To print the current Help topic |
| CTRL + TAB | To move among the Contents, Index, Search, and Favorites tabs |
| DOWN ARROW | To select the next book or Help topic |
| END | To select the last group of topics |
| ENTER | To perform the action for the selected hyperlink, and to open a selected book or Help topic |
| ENTER or RIGHT ARROW | To expand a group of topics |
| ENTER or LEFT ARROW | To collapse a group of topics |
| F6 | To switch between the Table of Contents and the Help topic panes |
| HOME | To select the first group of topics |
| HOME or END | To go to the beginning or end of a Help topic |
| PAGE UP or PAGE DOWN | To scroll toward the beginning or end of a Help topic in large increments |
| SHIFT+F10 | To display a shortcut menu |
| TAB or SHIFT+TAB | To move forward or backward from one hyperlink to the next within a topic |
| UP ARROW | To select the previous book or Help topic |
| UP ARROW or DOWN ARROW | To scroll toward the beginning or end of a Help topic, and to select the previous or next group of topics |
虽然是快捷键，其实并不怎么实用，对于一个chm文档来说，最好的莫过于书签功能(bookmark)，特别是文档内容比较多的chm。
microsft不遗余力地推出chm，但是却受到来自adobe的pdf的威胁。相对于pdf来说，chm也不是无一用处，它小巧，启动快，门槛低（不用专业软件编辑--商业软件，反编译后用notepad.exe就行），不易编辑（除非反编译-_-!）。但是弊端也是显而易见，界面不友好，打印功能不强，安全性能不高（易被反编译）等。
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