C#:如何打开 Windows 资源管理器窗口并选择多个文件
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21-08-2019 - |
题
在 Windows Media Player 的库中,您可以选择一个或多个音乐文件。然后,您可以右键单击并在上下文菜单中选择 打开文件所在位置. 。这将为文件所在的每个目录打开一个 Windows 资源管理器窗口,并且将为您选择文件。
假设我们的库中有一堆 mp3 文件,其中三个文件是:
- Z:\音乐\星期四布鲁斯\01。我希望今天是星期五.mp3
- Z:\音乐\数羊\01。羊#1.mp3
- Z:\音乐\数羊\02。羊#2.mp3
如果我们选择这三个(在所有这些都可见的视图中)并执行 打开文件所在位置 然后会弹出两个资源管理器窗口。其中一个将是 Z:\音乐\星期四布鲁斯 文件夹与 01.我希望今天是星期五.mp3 选中,另一个是 *Z:\Music\Counting Sheep** 文件夹,其中包含 01.羊#1.mp3 和 02.羊#2.mp3 已选择。
我如何在 C# 中自己完成此操作?我们有一个应用程序,它将数据导出为各种格式,例如 CSV 和 Excel,我想打开资源管理器窗口,并在创建并准备查看这些文件时选择这些文件。目前我只是做 Process.Start(path)
, ,这可行,但我也希望能够突出显示这些特定文件。将使刚刚创建的文件更加明显。
Windows Media Player 做得很好...我也想做=/这里有微软员工可以弄清楚如何做到这一点吗?(A)
解决方案
在同事遇到问题后寻找答案时,我没有找到答案,所以我写了一个小课程来做到这一点。代码 是在要点上 我将在本文末尾粘贴当前版本。
对于示例文件,语法将是:
ShowSelectedInExplorer.FilesOrFolders(
@"Z:\Music\Thursday Blues\01. I wish it was friday.mp3",
@"Z:\Music\Counting Sheep\01. Sheep #1.mp3",
@"Z:\Music\Counting Sheep\02. Sheep #2.mp3"
);
与低级 API 相比,我的代码有一些限制,主要是:
- 未实现桌面选择
- 父目录必须是目录或驱动器,因此您不能在“我的电脑”文件夹中选择多个驱动器。
无论如何,这是 ShowSelectedInExplorer 类源代码:
namespace SHOpenFolderAndSelectItems
{
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.Runtime.InteropServices.ComTypes;
static class ShowSelectedInExplorer
{
[Flags]
enum SHCONT : ushort
{
SHCONTF_CHECKING_FOR_CHILDREN = 0x0010,
SHCONTF_FOLDERS = 0x0020,
SHCONTF_NONFOLDERS = 0x0040,
SHCONTF_INCLUDEHIDDEN = 0x0080,
SHCONTF_INIT_ON_FIRST_NEXT = 0x0100,
SHCONTF_NETPRINTERSRCH = 0x0200,
SHCONTF_SHAREABLE = 0x0400,
SHCONTF_STORAGE = 0x0800,
SHCONTF_NAVIGATION_ENUM = 0x1000,
SHCONTF_FASTITEMS = 0x2000,
SHCONTF_FLATLIST = 0x4000,
SHCONTF_ENABLE_ASYNC = 0x8000
}
[ComImport,
Guid("000214E6-0000-0000-C000-000000000046"),
InterfaceType(ComInterfaceType.InterfaceIsIUnknown),
ComConversionLoss]
interface IShellFolder
{
[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
void ParseDisplayName(IntPtr hwnd, [In, MarshalAs(UnmanagedType.Interface)] IBindCtx pbc, [In, MarshalAs(UnmanagedType.LPWStr)] string pszDisplayName, [Out] out uint pchEaten, [Out] out IntPtr ppidl, [In, Out] ref uint pdwAttributes);
[PreserveSig]
[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
int EnumObjects([In] IntPtr hwnd, [In] SHCONT grfFlags, [MarshalAs(UnmanagedType.Interface)] out IEnumIDList ppenumIDList);
[PreserveSig]
[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
int BindToObject([In] IntPtr pidl, [In, MarshalAs(UnmanagedType.Interface)] IBindCtx pbc, [In] ref Guid riid, [Out, MarshalAs(UnmanagedType.Interface)] out IShellFolder ppv);
[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
void BindToStorage([In] ref IntPtr pidl, [In, MarshalAs(UnmanagedType.Interface)] IBindCtx pbc, [In] ref Guid riid, out IntPtr ppv);
[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
void CompareIDs([In] IntPtr lParam, [In] ref IntPtr pidl1, [In] ref IntPtr pidl2);
[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
void CreateViewObject([In] IntPtr hwndOwner, [In] ref Guid riid, out IntPtr ppv);
[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
void GetAttributesOf([In] uint cidl, [In] IntPtr apidl, [In, Out] ref uint rgfInOut);
[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
void GetUIObjectOf([In] IntPtr hwndOwner, [In] uint cidl, [In] IntPtr apidl, [In] ref Guid riid, [In, Out] ref uint rgfReserved, out IntPtr ppv);
[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
void GetDisplayNameOf([In] ref IntPtr pidl, [In] uint uFlags, out IntPtr pName);
[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
void SetNameOf([In] IntPtr hwnd, [In] ref IntPtr pidl, [In, MarshalAs(UnmanagedType.LPWStr)] string pszName, [In] uint uFlags, [Out] IntPtr ppidlOut);
}
[ComImport,
Guid("000214F2-0000-0000-C000-000000000046"),
InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
interface IEnumIDList
{
[PreserveSig]
[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
int Next(uint celt, IntPtr rgelt, out uint pceltFetched);
[PreserveSig]
[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
int Skip([In] uint celt);
[PreserveSig]
[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
int Reset();
[PreserveSig]
[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
int Clone([MarshalAs(UnmanagedType.Interface)] out IEnumIDList ppenum);
}
static class NativeMethods
{
[DllImport("shell32.dll", EntryPoint = "SHGetDesktopFolder", CharSet = CharSet.Unicode,
SetLastError = true)]
static extern int SHGetDesktopFolder_([MarshalAs(UnmanagedType.Interface)] out IShellFolder ppshf);
public static IShellFolder SHGetDesktopFolder()
{
IShellFolder result;
Marshal.ThrowExceptionForHR(SHGetDesktopFolder_(out result));
return result;
}
[DllImport("shell32.dll", EntryPoint = "SHOpenFolderAndSelectItems")]
static extern int SHOpenFolderAndSelectItems_(
[In] IntPtr pidlFolder, uint cidl, [In, Optional, MarshalAs(UnmanagedType.LPArray)] IntPtr[] apidl,
int dwFlags);
public static void SHOpenFolderAndSelectItems(IntPtr pidlFolder, IntPtr[] apidl, int dwFlags)
{
var cidl = (apidl != null) ? (uint)apidl.Length : 0U;
var result = SHOpenFolderAndSelectItems_(pidlFolder, cidl, apidl, dwFlags);
Marshal.ThrowExceptionForHR(result);
}
[DllImport("shell32.dll")]
public static extern void ILFree([In] IntPtr pidl);
}
static IntPtr GetShellFolderChildrenRelativePIDL(IShellFolder parentFolder, string displayName)
{
uint pchEaten;
uint pdwAttributes = 0;
IntPtr ppidl;
parentFolder.ParseDisplayName(IntPtr.Zero, null, displayName, out pchEaten, out ppidl, ref pdwAttributes);
return ppidl;
}
static IntPtr PathToAbsolutePIDL(string path)
{
var desktopFolder = NativeMethods.SHGetDesktopFolder();
return GetShellFolderChildrenRelativePIDL(desktopFolder, path);
}
static Guid IID_IShellFolder = typeof(IShellFolder).GUID;
static IShellFolder PIDLToShellFolder(IShellFolder parent, IntPtr pidl)
{
IShellFolder folder;
var result = parent.BindToObject(pidl, null, ref IID_IShellFolder, out folder);
Marshal.ThrowExceptionForHR((int)result);
return folder;
}
static IShellFolder PIDLToShellFolder(IntPtr pidl)
{
return PIDLToShellFolder(NativeMethods.SHGetDesktopFolder(), pidl);
}
static void SHOpenFolderAndSelectItems(IntPtr pidlFolder, IntPtr[] apidl, bool edit)
{
NativeMethods.SHOpenFolderAndSelectItems(pidlFolder, apidl, edit ? 1 : 0);
}
public static void FileOrFolder(string path, bool edit = false)
{
if (path == null) throw new ArgumentNullException("path");
var pidl = PathToAbsolutePIDL(path);
try
{
SHOpenFolderAndSelectItems(pidl, null, edit);
}
finally
{
NativeMethods.ILFree(pidl);
}
}
static IEnumerable<FileSystemInfo> PathToFileSystemInfo(IEnumerable<string> paths)
{
foreach (var path in paths)
{
var fixedPath = path;
if (fixedPath.EndsWith(Path.DirectorySeparatorChar.ToString())
|| fixedPath.EndsWith(Path.AltDirectorySeparatorChar.ToString()))
{
fixedPath = fixedPath.Remove(fixedPath.Length - 1);
}
if (Directory.Exists(fixedPath))
{
yield return new DirectoryInfo(fixedPath);
}
else if (File.Exists(fixedPath))
{
yield return new FileInfo(fixedPath);
}
else
{
throw new FileNotFoundException
(string.Format("The specified file or folder doesn't exists : {0}", fixedPath),
fixedPath);
}
}
}
public static void FilesOrFolders(string parentDirectory, ICollection<string> filenames)
{
if (filenames == null) throw new ArgumentNullException("filenames");
if (filenames.Count == 0) return;
var parentPidl = PathToAbsolutePIDL(parentDirectory);
try
{
var parent = PIDLToShellFolder(parentPidl);
var filesPidl = filenames
.Select(filename => GetShellFolderChildrenRelativePIDL(parent, filename))
.ToArray();
try
{
SHOpenFolderAndSelectItems(parentPidl, filesPidl, false);
}
finally
{
foreach (var pidl in filesPidl)
{
NativeMethods.ILFree(pidl);
}
}
}
finally
{
NativeMethods.ILFree(parentPidl);
}
}
public static void FilesOrFolders(params string[] paths)
{
FilesOrFolders((IEnumerable<string>)paths);
}
public static void FilesOrFolders(IEnumerable<string> paths)
{
if (paths == null) throw new ArgumentNullException("paths");
FilesOrFolders(PathToFileSystemInfo(paths));
}
public static void FilesOrFolders(IEnumerable<FileSystemInfo> paths)
{
if (paths == null) throw new ArgumentNullException("paths");
var pathsArray = paths.ToArray();
if (pathsArray.Count() == 0) return;
var explorerWindows = pathsArray.GroupBy(p => Path.GetDirectoryName(p.FullName));
foreach (var explorerWindowPaths in explorerWindows)
{
var parentDirectory = Path.GetDirectoryName(explorerWindowPaths.First().FullName);
FilesOrFolders(parentDirectory, explorerWindowPaths.Select(fsi => fsi.Name).ToList());
}
}
}
class Program
{
static void Main()
{
var test = 3;
switch (test)
{
case 0:
var mydocs = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
ShowSelectedInExplorer.FileOrFolder(Path.Combine(mydocs, "Visual Studio 2010"), edit: true);
break;
case 1:
ShowSelectedInExplorer.FileOrFolder(Environment.GetFolderPath(Environment.SpecialFolder.UserProfile));
break;
case 2:
ShowSelectedInExplorer.FilesOrFolders(@"C:\Windows\", new[] { "Microsoft.NET", "System32", "Setup" });
break;
case 3:
ShowSelectedInExplorer.FilesOrFolders(@"C:\Windows\Microsoft.NET\", @"C:\Windows\System32", @"C:\Windows\Setup", @"C:\Program Files");
break;
}
}
}
}
其他提示
免责声明:我认为 VirtualBlackFox 的回答 比我的好,虽然目前票数较少,所以向下滚动并先阅读它:)
简单方法(可能不适用于所有平台):
Process.Start(String, String)
第一个参数是应用程序,第二个参数是应用程序的命令行参数。
例如:
Process.Start("explorer.exe",
"/select,Z:\Music\Thursday Blues\01. I wish it was friday.mp3")
Process.Start("explorer.exe",
"/select,Z:\Music\Counting Sheep\01. Sheep #1.mp3 /select,Z:\Music\Counting Sheep\02. Sheep #2.mp3")
(我认为如果文件路径有空格,您可能需要转义引号)。
更多信息: http://msdn.microsoft.com/en-us/library/h6ak8zt5.aspx
(根据几个答案编译 这个问题)
更难的方法,但更可能有效,取自 这是对另一个问题的回答:
使用shell函数 SHOpenFolderAndSelectItems
下面是一些示例代码,展示了如何在 C/C++ 中使用该函数,而不进行错误检查:
//Directory to open
ITEMIDLIST *dir = ILCreateFromPath(_T("C:\\"));
//Items in directory to select
ITEMIDLIST *item1 = ILCreateFromPath(_T("C:\\Program Files\\"));
ITEMIDLIST *item2 = ILCreateFromPath(_T("C:\\Windows\\"));
const ITEMIDLIST* selection[] = {item1,item2};
UINT count = sizeof(selection) / sizeof(ITEMIDLIST);
//Perform selection
SHOpenFolderAndSelectItems(dir, count, selection, 0);
//Free resources
ILFree(dir);
ILFree(item1);
ILFree(item2);
尝试开始这个:
explorer.exe /select,Z:\Music\Thursday Blues\01. I wish it was friday.mp3
总结一下:使用 Process.Start 是不可能的
flashk的回答 “这应该可以通过 shell 函数实现 SHOpenFolderAndSelectItems
“对我来说似乎有可能,但我还没有厌倦它
这是一个古老的问题,但是当我搜索类似谷歌搜索时,首先出现了,因此我试图使结论更容易找到。
也许您可以使用 ProcessExplorer 来找出从 Media Player 启动 explorer.exe 时使用了哪些参数?