这是我的问题的延续这里。我正在创建 *.bmp 类型的打开列表。根据该问题的答案，我已经从注册表项创建了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，
这些是 PrgId，我可以从
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;
}
现在如何获取必须在菜单中显示的应用程序名称？ 每次开始使用新应用程序时，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键，但我在从诸如
之类的命令中分离出应用程序路径时遇到了一些麻烦%SystemRoot%\System32 undll32.exe“%ProgramFiles%\Windows 照片 查看器\PhotoViewer.dll”，ImageView_Fullscreen %1
如何获取姓名信息？
在我的命令列表下方
如果您知道命令列表，那么您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);
基于 Amal 的解决方案，您只需处理两种情况：
1) 那些启动“C:\Windows\System32 undll32.exe” 2）其他一切
如果你想要一些粗糙的东西，你可以替换“C:\Windows\System32 undll32.exe”将是一个空字符串。将“s”替换为空字符串，以第一个正斜杠 (/) 或 % 终止字符串，然后修剪结果。
您将留下您想要的 .dll 或 .exe 名称（这可能可以使用正则表达式更优雅地完成，如果您需要处理更多场景，此解决方案最终会变得复杂） ).
然后你通过 Amal 的代码运行它，你应该得到你想要的东西。
更新：抱歉，我误读了你的帖子。
仅当您根据扩展名查找默认应用程序名称时，这才有用。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();
}
}
你可以这样使用它
string applicationName = FileAssoc.GetApplicationName(".docx");
// results in "Microsoft Office Word"
我的代码包括检查以防止一些常见错误...希望它有帮助:-)
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
}
}
}