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关于winapi：如何获取“特殊” Windows文件夹(回收站等)的本地化名称？

2023-04-13 18:43:00

How can I get the localized name of a 'special' windows folder (Recycle bin etc.)?

我正在尝试找出"正确的" Windows API，以查找"特殊"文件夹的本地化名称，特别是回收站。我希望能够通过一个适当本地化的对话框提示用户，询问他们是否要将文件发送到回收站或直接将其删除。

我已经在互联网上(和Stackoverflow上)找到了很多有关如何进行实际删除的方法，而且看起来很简单，我真的很想能够对文本进行本地化。

阅读本文以获得代码示例和用法：

http://www.codeproject.com/KB/winsdk/SpecialFolders.aspx

在MSDN上也有一篇文章，可帮助您通过API调用识别特殊文件夹的位置

我实际上并没有发现CodeProject文章非常有用，所以我想用我用来检索回收站本地化名称的实际代码回答这个问题。

此示例还尝试在释放资源方面表现正确。欢迎任何评论，特别是如果您发现我的资源管理有误！

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public static string GetLocalizedRecycleBinName()
{
IntPtr relative_pidl, parent_ptr, absolute_pidl;

PInvoke.SHGetFolderLocation(IntPtr.Zero, PInvoke.CSIDL.BitBucket,
IntPtr.Zero, 0, out absolute_pidl);
try
{
PInvoke.SHBindToParent(absolute_pidl,
ref PInvoke.Guids.IID_IShellFolder,
out parent_ptr, out relative_pidl);
PInvoke.IShellFolder shell_folder =
Marshal.GetObjectForIUnknown(parent_ptr)
as PInvoke.IShellFolder;
// Release() for this object is called at finalization
if (shell_folder == null)
return Strings.RecycleBin;

PInvoke.STRRET strret = new PInvoke.STRRET();
StringBuilder sb = new StringBuilder(260);
shell_folder.GetDisplayNameOf(relative_pidl, PInvoke.SHGNO.Normal,
out strret);
PInvoke.StrRetToBuf(ref strret, relative_pidl, sb, 260);
string name = sb.ToString();

return String.IsNullOrEmpty(name) ? Strings.RecycleBin : name;
}
finally { PInvoke.ILFree(absolute_pidl); }
}

static class PInvoke
{
[DllImport("shell32.dll")]
public static extern int SHGetFolderLocation(IntPtr hwndOwner,
CSIDL nFolder, IntPtr hToken, uint dwReserved, out IntPtr ppidl);

[DllImport("shell32.dll")]
public static extern int SHBindToParent(IntPtr lpifq, [In] ref Guid riid,
out IntPtr ppv, out IntPtr pidlLast);

[DllImport("shlwapi.dll")]
public static extern Int32 StrRetToBuf(ref STRRET pstr, IntPtr pidl,
StringBuilder pszBuf, uint cchBuf);

[DllImport("shell32.dll")]
public static extern void ILFree([In] IntPtr pidl);

[ComImport]
[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
[Guid("000214E6-0000-0000-C000-000000000046")]
public interface IShellFolder
{
[PreserveSig]
Int32 CompareIDs(Int32 lParam, IntPtr pidl1, IntPtr pidl2);
void ParseDisplayName(IntPtr hwnd, IntPtr pbc, String pszDisplayName,
UInt32 pchEaten, out IntPtr ppidl, UInt32 pdwAttributes);
void EnumObjects(IntPtr hwnd, int grfFlags,
out IntPtr ppenumIDList);
void BindToObject(IntPtr pidl, IntPtr pbc, [In] ref Guid riid,
out IntPtr ppv);
void BindToStorage(IntPtr pidl, IntPtr pbc, [In] ref Guid riid,
out IntPtr ppv);
void CreateViewObject(IntPtr hwndOwner, [In] ref Guid riid,
out IntPtr ppv);
void GetAttributesOf(UInt32 cidl,
[MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 0)]
IntPtr[] apidl, ref uint rgfInOut);
void GetUIObjectOf(IntPtr hwndOwner, UInt32 cidl,
[MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 1)]
IntPtr[] apidl, [In] ref Guid riid, UInt32 rgfReserved,
out IntPtr ppv);
void GetDisplayNameOf(IntPtr pidl, SHGNO uFlags, out STRRET pName);
void SetNameOf(IntPtr hwnd, IntPtr pidl, string pszName,
int uFlags, out IntPtr ppidlOut);
}

public enum CSIDL
{
BitBucket = 0x000a,
}

public enum SHGNO
{
Normal = 0x0000, ForParsing = 0x8000,
}

[StructLayout(LayoutKind.Explicit, Size = 520)]
public struct STRRETinternal
{
[FieldOffset(0)] public IntPtr pOleStr;
[FieldOffset(0)] public IntPtr pStr;
[FieldOffset(0)] public uint uOffset;
}

[StructLayout(LayoutKind.Sequential)]
public struct STRRET
{
public uint uType;
public STRRETinternal data;
}

public class Guids
{
public static Guid IID_IShellFolder =
new Guid("{000214E6-0000-0000-C000-000000000046}");
}
}

查找本地化回收站名称