c# - 如何让应用程序名称显示在打开方式列表中？

Question

这是我的问题的延续。我正在为 *.bmp 类型创建一个打开列表。根据该问题的答案，我已经从注册表项中创建了一个打开列表中的应用程序列表。

   public void RecommendedPrograms(string ext)
    {


        string baseKey = @"Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\." + ext;

        using (RegistryKey rk = Registry.CurrentUser.OpenSubKey(baseKey + @"\OpenWithList"))
        {
            if (rk != null)
            {
                string mruList = (string)rk.GetValue("MRUList");
                if (mruList != null)
                {
                    foreach (char c in mruList.ToString())
                    {
                        string str=rk.GetValue(c.ToString()).ToString();
                        if (!progs.Contains(str))
                        {
                            progs.Add(str);
                        }
                    }
                }
            }
        }

        using (RegistryKey rk = Registry.CurrentUser.OpenSubKey(baseKey + @"\OpenWithProgids"))
        {
            if (rk != null)
            {
                foreach (string item in rk.GetValueNames())
                    progs.Add(item);
            }
        }

        using (RegistryKey rk = Registry.ClassesRoot.OpenSubKey("." + ext + @"\OpenWithList"))
        {
            if (rk != null)
            {
                foreach (var item in rk.GetSubKeyNames())
                {
                    if (!progs.Contains(item))
                    {
                        progs.Add(item.ToString());
                    }
                }
            }
        }
        using (RegistryKey rk = Registry.ClassesRoot.OpenSubKey("." + ext + @"\OpenWithProgids"))
        {
            if (rk != null)
            {
                foreach (string item in rk.GetValueNames())
                {
                    if (!progs.Contains(item))
                    {
                        progs.Add(item);
                    }
                }
            }
        }

    }

此方法将返回应用程序名称列表，例如，

画图
ehshell.exe
MSPaint.exe
ois.exe
VisualStudio.bmp.10.0
快速时间.bmp

这些是 PrgId，我可以从中获取打开特定应用程序所需执行的命令

      public string GetRegisteredApplication(string StrProgID)
    {
        // 
        //  Return registered application by file's extension
        // 
        RegistryKey oHKCR;
        RegistryKey oOpenCmd;
        string command;

        if (Environment.Is64BitOperatingSystem == true)
        {
            oHKCR = RegistryKey.OpenBaseKey(Microsoft.Win32.RegistryHive.ClassesRoot, RegistryView.Registry64);
        }
        else
        {
            oHKCR = RegistryKey.OpenBaseKey(Microsoft.Win32.RegistryHive.ClassesRoot, RegistryView.Registry32);
        }
        try
        {


            oOpenCmd = oHKCR.OpenSubKey(StrProgID + "\\shell\\open\\command");
            if (oOpenCmd == null)
            {
                oOpenCmd = oHKCR.OpenSubKey("\\Applications\\" + StrProgID + "\\shell\\open\\command");
            }
            if (oOpenCmd != null)
            {
                command = oOpenCmd.GetValue(null).ToString();
                oOpenCmd.Close();
            }
            else
            {
                return null;
            }
        }
        catch (Exception ex)
        {
            return null;
        }
        return command;
    }

现在如何获得必须在菜单中显示的应用程序名称？每次您开始使用新的应用程序时，Windows 操作系统都会自动从 exe 文件的版本资源中提取应用程序名称，并将其存储在称为“MuiCache”的注册表项中以供以后使用。MUICache 数据存储在 HKEY_CURRENT_USER\Software\Classes\Local Settings\Software\Microsoft\Windows\Shell\MuiCache 下

但我们不能保证应用程序至少运行过一次。我们也可以直接从文件的版本资源中获取描述密钥，但是我在从命令中拆分应用程序路径时遇到了一些麻烦，例如

%SystemRoot%\System32\rundll32.exe "%ProgramFiles%\Windows Photo Viewer\PhotoViewer.dll", ImageView_Fullscreen %1

我怎样才能得到名称信息？

在我的命令列表下方

"C:\Windows\System32\rundll32.exe \"C:\Program Files\Windows Photo Viewer\PhotoViewer.dll\", ImageView_Fullscreen %1"
"\"C:\Windows\eHome\ehshell.exe\"\"%1\""
"C:\PROGRA~1\MIF5BA~1\Office14\OIS.EXE /shellOpen\"%1\""
"\"C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\devenv.exe\" /dde"
"C:\Program Files (x86)\QuickTime\PictureViewer.exe \"%1\""

score 2 · Accepted Answer

如果您知道命令列表，则可以使用下面给出的代码检索描述

 FileVersionInfo.GetVersionInfo(Path.Combine(Environment.SystemDirectory, "Notepad.exe"));
 FileVersionInfo myFileVersionInfo = FileVersionInfo.GetVersionInfo(Environment.SystemDirectory + "\\Notepad.exe");


    // Print the file name and version number.
    Console.WriteLine("File: " + myFileVersionInfo.FileDescription + '\n' +
       "Version number: " + myFileVersionInfo.FileVersion);

score 2 · Accepted Answer

基于 Amal 的解决方案，您只需要处理两个场景：

1) 那些启动 "C:\Windows\System32\rundll32.exe" 2) 其他一切

如果你想要一些粗略的东西，你可以用“C:\Windows\System32\rundll32.exe”替换一个空字符串。将 "s 替换为空字符串，以第一个正斜杠 (/) 或 % 终止您的字符串，然后修剪结果。

您将留下您想要命名的 .dll 或 .exe 的名称（这可能会使用 RegEx 更优雅地完成，如果您需要处理更多场景，此解决方案最终会很快变得复杂） .

然后，您通过 Amal 的一些代码运行它，您应该拥有您想要的东西。

score 1 · Accepted Answer

更新：对不起，我看错了你的帖子。

仅当您根据扩展名查找默认应用程序名称时，这才有帮助。不基于 progID。

public static class FileAssoc
{
    [DllImport("Shlwapi.dll", CharSet = CharSet.Auto, SetLastError = true)]
    static extern uint AssocQueryString(AssocF flags, AssocStr str, string pszAssoc, string pszExtra, [Out] StringBuilder sOut, [In][Out] ref uint nOut);

    [Flags]
    public enum AssocF
    {
        Init_NoRemapCLSID = 0x1,
        Init_ByExeName = 0x2,
        Open_ByExeName = 0x2,
        Init_DefaultToStar = 0x4,
        Init_DefaultToFolder = 0x8,
        NoUserSettings = 0x10,
        NoTruncate = 0x20,
        Verify = 0x40,
        RemapRunDll = 0x80,
        NoFixUps = 0x100,
        IgnoreBaseClass = 0x200
    }

    public enum AssocStr
    {
        Command = 1,
        Executable,
        FriendlyDocName,
        FriendlyAppName,
        NoOpen,
        ShellNewValue,
        DDECommand,
        DDEIfExec,
        DDEApplication,
        DDETopic
    }

    public static string GetApplicationName(string fileExtensionIncludingDot)
    {
        uint cOut = 0;
        if (AssocQueryString(AssocF.Verify, AssocStr.FriendlyAppName, fileExtensionIncludingDot, null, null, ref cOut) != 1)
            return null;
        StringBuilder pOut = new StringBuilder((int)cOut);
        if (AssocQueryString(AssocF.Verify, AssocStr.FriendlyAppName, fileExtensionIncludingDot, null, pOut, ref cOut) != 0)
            return null;
        return pOut.ToString();
    }
}

你可以像这样使用它

string applicationName = FileAssoc.GetApplicationName(".docx");
// results in "Microsoft Office Word"

score 0 · Accepted Answer

我的代码包括检查以防止一些常见错误...希望它有所帮助:-)

using System;
using System.Diagnostics;
using System.IO;
using System.Runtime.InteropServices;
using System.Text;

namespace HQ.Util.Unmanaged
{
    /// <summary>
    /// Usage: string executablePath = FileAssociation.GetExecFileAssociatedToExtension(pathExtension, "open");
    /// Usage: string command FileAssociation.GetExecCommandAssociatedToExtension(pathExtension, "open");
    /// </summary>
    public static class FileAssociation
    {
        /// <summary>
        /// 
        /// </summary>
        /// <param name="ext"></param>
        /// <param name="verb"></param>
        /// <returns>Return null if not found</returns>
        public static string GetExecCommandAssociatedToExtension(string ext, string verb = null)
        {
            if (ext[0] != '.')
            {
                ext = "." + ext;
            }

            string  executablePath = FileExtentionInfo(AssocStr.Command, ext, verb);

            // Ensure to not return the default OpenWith.exe associated executable in Windows 8 or higher
            if (!string.IsNullOrEmpty(executablePath) && File.Exists(executablePath) &&
                !executablePath.ToLower().EndsWith(".dll"))
            {
                if (executablePath.ToLower().EndsWith("openwith.exe"))
                {
                    return null; // 'OpenWith.exe' is th windows 8 or higher default for unknown extensions. I don't want to have it as associted file
                }
                return executablePath;
            }
            return executablePath;
        }

        /// <summary>
        /// 
        /// </summary>
        /// <param name="ext"></param>
        /// <param name="verb"></param>
        /// <returns>Return null if not found</returns>
        public static string GetExecFileAssociatedToExtension(string ext, string verb = null)
        {
            if (ext[0] != '.')
            {
                ext = "." + ext;
            }

            string executablePath = FileExtentionInfo(AssocStr.Executable, ext, verb); // Will only work for 'open' verb
            if (string.IsNullOrEmpty(executablePath))
            {
                executablePath = FileExtentionInfo(AssocStr.Command, ext, verb); // required to find command of any other verb than 'open'

                // Extract only the path
                if (!string.IsNullOrEmpty(executablePath) && executablePath.Length > 1) 
                {
                    if (executablePath[0] == '"')
                    {
                        executablePath = executablePath.Split('\"')[1];
                    }
                    else if (executablePath[0] == '\'')
                    {
                        executablePath = executablePath.Split('\'')[1];
                    }
                }
            }

            // Ensure to not return the default OpenWith.exe associated executable in Windows 8 or higher
            if (!string.IsNullOrEmpty(executablePath) && File.Exists(executablePath) &&
                !executablePath.ToLower().EndsWith(".dll"))
            {
                if (executablePath.ToLower().EndsWith("openwith.exe"))
                {
                    return null; // 'OpenWith.exe' is th windows 8 or higher default for unknown extensions. I don't want to have it as associted file
                }
                return executablePath;
            }
            return executablePath;
        }

        [DllImport("Shlwapi.dll", SetLastError = true, CharSet = CharSet.Auto)]
        static extern uint AssocQueryString(AssocF flags, AssocStr str, string pszAssoc, string pszExtra, [Out] StringBuilder pszOut, [In][Out] ref uint pcchOut);

        private static string FileExtentionInfo(AssocStr assocStr, string doctype, string verb)
        {
            uint pcchOut = 0;
            AssocQueryString(AssocF.Verify, assocStr, doctype, verb, null, ref pcchOut);

            Debug.Assert(pcchOut != 0);
            if (pcchOut == 0)
            {
                return "";
            }

            StringBuilder pszOut = new StringBuilder((int)pcchOut);
            AssocQueryString(AssocF.Verify, assocStr, doctype, verb, pszOut, ref pcchOut);
            return pszOut.ToString();
        }

        [Flags]
        public enum AssocF
        {
            Init_NoRemapCLSID = 0x1,
            Init_ByExeName = 0x2,
            Open_ByExeName = 0x2,
            Init_DefaultToStar = 0x4,
            Init_DefaultToFolder = 0x8,
            NoUserSettings = 0x10,
            NoTruncate = 0x20,
            Verify = 0x40,
            RemapRunDll = 0x80,
            NoFixUps = 0x100,
            IgnoreBaseClass = 0x200
        }

        public enum AssocStr
        {
            Command = 1,
            Executable,
            FriendlyDocName,
            FriendlyAppName,
            NoOpen,
            ShellNewValue,
            DDECommand,
            DDEIfExec,
            DDEApplication,
            DDETopic
        }



    }
}

c# - 如何让应用程序名称显示在打开方式列表中？

4 回答 4

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