删除文件回收站在Windows x64在C#
问题描述:
我有这个类似乎在非64位工作得很好。删除文件回收站在Windows x64在C#
using System;
using System.Runtime.InteropServices;
namespace DeleteToRecycleBin
{
/// <summary>
/// Send files directly to the recycle bin.
/// </summary>
public class RecybleBin
{
/// <summary>
/// Possible flags for the SHFileOperation method.
/// </summary>
[Flags]
public enum FileOperationFlags: ushort
{
/// <summary>
/// Do not show a dialog during the process
/// </summary>
FOF_SILENT = 0x0004,
/// <summary>
/// Do not ask the user to confirm selection
/// </summary>
FOF_NOCONFIRMATION = 0x0010,
/// <summary>
/// Delete the file to the recycle bin. (Required flag to send a file to the bin
/// </summary>
FOF_ALLOWUNDO = 0x0040,
/// <summary>
/// Do not show the names of the files or folders that are being recycled.
/// </summary>
FOF_SIMPLEPROGRESS = 0x0100,
/// <summary>
/// Surpress errors, if any occur during the process.
/// </summary>
FOF_NOERRORUI = 0x0400,
/// <summary>
/// Warn if files are too big to fit in the recycle bin and will need
/// to be deleted completely.
/// </summary>
FOF_WANTNUKEWARNING = 0x4000,
}
/// <summary>
/// File Operation Function Type for SHFileOperation
/// </summary>
public enum FileOperationType: uint
{
/// <summary>
/// Move the objects
/// </summary>
FO_MOVE = 0x0001,
/// <summary>
/// Copy the objects
/// </summary>
FO_COPY = 0x0002,
/// <summary>
/// Delete (or recycle) the objects
/// </summary>
FO_DELETE = 0x0003,
/// <summary>
/// Rename the object(s)
/// </summary>
FO_RENAME = 0x0004,
}
/// <summary>
/// SHFILEOPSTRUCT for SHFileOperation from COM
/// </summary>
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto, Pack = 1)]
private struct SHFILEOPSTRUCT
{
public IntPtr hwnd;
[MarshalAs(UnmanagedType.U4)]
public FileOperationType wFunc;
public string pFrom;
public string pTo;
public FileOperationFlags fFlags;
[MarshalAs(UnmanagedType.Bool)]
public readonly bool fAnyOperationsAborted;
public readonly IntPtr hNameMappings;
public readonly string lpszProgressTitle;
}
[DllImport("shell32.dll", CharSet = CharSet.Auto)]
private static extern int SHFileOperation(ref SHFILEOPSTRUCT FileOp);
/// <summary>
/// Send file to recycle bin
/// </summary>
/// <param name="path">Location of directory or file to recycle</param>
/// <param name="flags">FileOperationFlags to add in addition to FOF_ALLOWUNDO</param>
public static bool Send(string path, FileOperationFlags flags)
{
try
{
SHFILEOPSTRUCT fs = new SHFILEOPSTRUCT
{
wFunc = FileOperationType.FO_DELETE,
pFrom = path + '\0' + '\0',
fFlags = FileOperationFlags.FOF_ALLOWUNDO | flags
};
// important to double-terminate the string.
SHFileOperation(ref fs);
return true;
}
catch (Exception)
{
return false;
}
}
/// <summary>
/// Send file to recycle bin. Display dialog, display warning if files are too big to fit (FOF_WANTNUKEWARNING)
/// </summary>
/// <param name="path">Location of directory or file to recycle</param>
public static bool Send(string path) {
return Send(path, FileOperationFlags.FOF_NOCONFIRMATION | FileOperationFlags.FOF_WANTNUKEWARNING);
}
/// <summary>
/// Send file silently to recycle bin. Surpress dialog, surpress errors, delete if too large.
/// </summary>
/// <param name="path">Location of directory or file to recycle</param>
public static bool SendSilent(string path)
{
return Send(path, FileOperationFlags.FOF_NOCONFIRMATION | FileOperationFlags.FOF_NOERRORUI | FileOperationFlags.FOF_SILENT);
}
}
}
有办法解决它,所以它在x64工作也很好?我尝试过使用ulong和其他修改,但它不起作用。
我知道还有其他解决方案需要参考Microsoft.VisualBasic,但我更喜欢p/invoke方式。
正确答案是:
在x64,则必须SHFILEOPSTRUCT未经包= 1个参数被声明,否则会失败。如果你希望你的代码独立于平台,那么这是一个真正的痛苦,因为你必须声明两个独立的结构,一个是Pack = 1,另一个没有。然后您必须声明两个不同的SHFileOperation调用,每个调用一个结构。然后,您必须决定要调用哪一个,具体取决于您是在32位还是64位运行。
答
你看过PInvoke网站吗?它有一个与FILEOPSTRUCT类型稍有不同的定义,强制Unicode有一件事。我想知道charset = auto是否会令人困惑......比如它默认为32位的ANSI,但64位的Unicode和中间的某处出错。
编辑; 此外,Visual Basic的参考方法是一个简单的...我知道人们有一种厌恶,出于某种原因,但相关的DLL仍然是核心框架的一部分,所以你不会添加任何新的依赖关系。
答
看起来很奇怪,.NET已经具有删除回收站的功能......但它们位于Microsoft.VisualBasic
名称空间中。具体来说,Microsoft.VisualBasic.FileIO
。
using Microsoft.VisualBasic.FileIO;
// class declaration, method start here
// Send file to recycle bin without dialog
FileSystem.DeleteFile("pathToFile", UIOption.OnlyErrorDialogs, RecycleOption.SendToRecycleBin);
// Send file to recycle bin without dialog
FileSystem.DeleteFile("pathToFile", UIOption.AllDialogs, RecycleOption.SendToRecycleBin);
// Directories are the same, but with DeleteDirectory instead
问题存在于[StructLayout(LayoutKind.Sequential,CharSet = CharSet.Auto,Pack = 1)]中。对于64位,你需要删除包= 1,它的工作原理!既然你指向我的PInvoke网站,它甚至会在那里说出它的位置(在文章的底部,当它是64位的操作系统时,删除Pack = 1!) – MadBoy 2010-02-26 17:56:42
哈哈,我甚至没有向下滚动,只是看到了差异 – 2010-02-26 18:32:15
我使用64位Windows 7,Pack = 1作为FILEOPSTRUCT,它可以和我一起工作,没有任何问题:| – TheBlueSky 2011-03-18 18:19:36