问题描述
我有困难的时候搞清楚为什么这并不在我的电脑上工作。我读过这篇文章并试了一下，它为一个未知的文件类型，但是知道如.BMP它不会 - 我也删下的.bmp其他键 - 没有帮助。我在HKEY_CLASSES_ROOT.bmp和HKEY_CURRENT_USER \\软件\\微软\\的Windows \\ CurrentVersion \\ Explorer中\\ FileExts.bmp试过这种
我需要实现这个在我的程序，因此对某些文件类型，如BMP自定义上下文菜单项。
顺便说一句。我试过ContextEdit（一个免费程序） - 也没有工作 - 任何想法？也许事情不是令人耳目一新（我试着重新启动 - 并未进行任何更改）？
I'm having hard times figuring out why this doesn't work on my computer. I've read this article http://msdn.microsoft.com/en-us/library/bb776820.aspx and tried it, and it works for an unknown file type, but for know such as .bmp it doesn't - I've also deleted other keys under .bmp - didn't help. I've tried this in HKEY_CLASSES_ROOT.bmp and in HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts.bmpI need to implement this in my program so it has custom context menu items on some file types like bmp.btw. I've tried ContextEdit (a freeware program) - also didn't work - any ideas? Maybe something not refreshing (I've tried to reboot - didn't make any changes)?
编辑：
一个更新 - 如果我去下设置默认程序和Windows照片查看器由于某种原因，我不能将其禁用某些文件类型，如.JPG，.BMP，.GIF。真奇怪...
edit:One update - if I go under Set Default Programs and Windows Photo Viewer for some reason I can't disable it for some file types like .jpg, .bmp, .gif. That's strange...
编辑没有。 2：
现在它开始工作，我已经确定了问题 - 即使重新启动计算机后，文件关联并没有刷新。之后我相关的txt文件，以不同的编辑器我的.bmp菜单，图标和默认的程序已更改。所以，现在的主要问题是 - 我怎么手动使用C＃刷新文件关联
edit no. 2:now it started working and I have determined the problem - the file associations didn't refresh even after restarting my computer. After I had associated a txt file to a different editor my .bmp menus, icon and default program have changed. So the main question now is - how do I manually refresh file associations using C#?
推荐答案
我想我已经找到了这一个解决方案，它是这样 - 定义：
I think I've found a solution for this one, and it goes like this - define:
[DllImport("shell32.dll", CharSet = CharSet.Auto, SetLastError = true)]
public static extern void SHChangeNotify(uint wEventId, uint uFlags, IntPtr dwItem1, IntPtr dwItem2);
const uint SHCNF_IDLIST = 0x0;
const uint SHCNE_ASSOCCHANGED = 0x08000000;
然后在需要的时候做您的关联code的东西，后执行：
Then do your code stuff with associations when needed, and after it execute:
SHChangeNotify(SHCNE_ASSOCCHANGED, SHCNF_IDLIST, IntPtr.Zero, IntPtr.Zero);
此外，如果提到的注册表键不起作用尝试：
Also if mentioned registry keys don't work try:
HKEY_CLASSES_ROOT\SystemFileAssociations\extension\Shell\yourcommand
这篇关于扩展windows资源管理器右键菜单的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！