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dotnet C# 使用 SHFileOperation 调用 Win32 的文件复制对话框

Updated: at 23:19,Created: at 23:19

本文将和大家介绍如何在 dotnet C# 里面使用 SHFileOperation 调用 Windows 自带的文件复制对话框进行文件复制

本文核心代码拷贝自 C#中使用SHFileOperation调用Windows的复制文件对话框 - 季风哥 - 博客园 文章,特别感谢大佬提供的方法

实现的效果图如下

详细实现逻辑还请大家参阅: C#中使用SHFileOperation调用Windows的复制文件对话框 - 季风哥 - 博客园

其中我遇到的坑是多个文件之间需要使用 \0 字符分割,我使用了 dotnet 新 API 对其进行更新,代码如下

pm.pFrom = string.Join(FILE_SPLITER, sourceFiles) + $"{FILE_SPLITER}{FILE_SPLITER}";
pm.pTo = string.Join(FILE_SPLITER, targetFiles) + $"{FILE_SPLITER}{FILE_SPLITER}";

上述代码的 FILE_SPLITERpm 都是从 C#中使用SHFileOperation调用Windows的复制文件对话框 博客里面抄的

所有代码如下

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;
namespace KachelearnemChurjawenikall;
internal class Program
{
[SkipLocalsInit]
static void Main(string[] args)
{
var sourceFile = @"F:\temp\1";
var targetFile = @"F:\temp\2";
if (!File.Exists(sourceFile))
{
var buffer = new byte[1024 * 1024];
for (int i = 0; i < 1000; i++)
{
Random.Shared.NextBytes(buffer);
File.AppendAllBytes(sourceFile, buffer);
}
}
string[] sourceFiles = [sourceFile];
string[] targetFiles = [targetFile];
SHFILEOPSTRUCT pm = new SHFILEOPSTRUCT();
pm.wFunc = wFunc.FO_COPY;
//设置对话框标题,在win7中无效
pm.lpszProgressTitle = "复制文件";
pm.pFrom = string.Join(FILE_SPLITER, sourceFiles) + $"{FILE_SPLITER}{FILE_SPLITER}";
pm.pTo = string.Join(FILE_SPLITER, targetFiles) + $"{FILE_SPLITER}{FILE_SPLITER}";
pm.fFlags = FILEOP_FLAGS.FOF_NOCONFIRMATION | FILEOP_FLAGS.FOF_MULTIDESTFILES | FILEOP_FLAGS.FOF_ALLOWUNDO;
SHFileOperation(pm);
}
/// <summary>
/// 映射API方法
/// </summary>
/// <param name="lpFileOp"></param>
/// <returns></returns>
[DllImport("shell32.dll", SetLastError = true, CharSet = CharSet.Unicode)]
private static extern int SHFileOperation(SHFILEOPSTRUCT lpFileOp);
/// <summary>
/// 多个文件路径的分隔符
/// </summary>
private const string FILE_SPLITER = "\0";
/// <summary>
/// Shell文件操作数据类型
/// </summary>
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
private class SHFILEOPSTRUCT
{
public IntPtr hwnd;
/// <summary>
/// 设置操作方式
/// </summary>
public wFunc wFunc;
/// <summary>
/// 源文件路径
/// </summary>
public string pFrom;
/// <summary>
/// 目标文件路径
/// </summary>
public string pTo;
/// <summary>
/// 允许恢复
/// </summary>
public FILEOP_FLAGS fFlags;
/// <summary>
/// 监测有无中止
/// </summary>
public bool fAnyOperationsAborted;
public IntPtr hNameMappings;
/// <summary>
/// 设置标题
/// </summary>
public string lpszProgressTitle;
}
/// <summary>
/// 文件操作方式
/// </summary>
private enum wFunc
{
/// <summary>
/// 移动
/// </summary>
FO_MOVE = 0x0001,
/// <summary>
/// 复制
/// </summary>
FO_COPY = 0x0002,
/// <summary>
/// 删除
/// </summary>
FO_DELETE = 0x0003,
/// <summary>
/// 重命名
/// </summary>
FO_RENAME = 0x0004
}
/// <summary>
/// fFlags枚举值,
/// 参见:http://msdn.microsoft.com/zh-cn/library/bb759795(v=vs.85).aspx
/// </summary>
private enum FILEOP_FLAGS
{
///<summary>
///pTo 指定了多个目标文件,而不是单个目录
///The pTo member specifies multiple destination files (one for each source file) rather than one directory where all source files are to be deposited.
///</summary>
FOF_MULTIDESTFILES = 0x1,
///<summary>
///不再使用
///Not currently used.
///</summary>
FOF_CONFIRMMOUSE = 0x2,
///<summary>
///不显示一个进度对话框
///Do not display a progress dialog box.
///</summary>
FOF_SILENT = 0x4,
///<summary>
///碰到有抵触的名字时,自动分配前缀
///Give the file being operated on a new name in a move, copy, or rename operation if a file with the target name already exists.
///</summary>
FOF_RENAMEONCOLLISION = 0x8,
///<summary>
///不对用户显示提示
///Respond with "Yes to All" for any dialog box that is displayed.
///</summary>
FOF_NOCONFIRMATION = 0x10,
///<summary>
///填充 hNameMappings 字段,必须使用 SHFreeNameMappings 释放
///If FOF_RENAMEONCOLLISION is specified and any files were renamed, assign a name mapping object containing their old and new names to the hNameMappings member.
///</summary>
FOF_WANTMAPPINGHANDLE = 0x20,
///<summary>
///允许撤销
///Preserve Undo information, if possible. If pFrom does not contain fully qualified path and file names, this flag is ignored.
///</summary>
FOF_ALLOWUNDO = 0x40,
///<summary>
///使用 *.* 时, 只对文件操作
///Perform the operation on files only if a wildcard file name (*.*) is specified.
///</summary>
FOF_FILESONLY = 0x80,
///<summary>
///简单进度条,意味着不显示文件名。
///Display a progress dialog box but do not show the file names.
///</summary>
FOF_SIMPLEPROGRESS = 0x100,
///<summary>
///建新目录时不需要用户确定
///Do not confirm the creation of a new directory if the operation requires one to be created.
///</summary>
FOF_NOCONFIRMMKDIR = 0x200,
///<summary>
///不显示出错用户界面
///Do not display a user interface if an error occurs.
///</summary>
FOF_NOERRORUI = 0x400,
///<summary>
/// 不复制 NT 文件的安全属性
///Do not copy the security attributes of the file.
///</summary>
FOF_NOCOPYSECURITYATTRIBS = 0x800,
///<summary>
/// 不递归目录
///Only operate in the local directory. Don't operate recursively into subdirectories.
///</summary>
FOF_NORECURSION = 0x1000,
///<summary>
///Do not move connected files as a group. Only move the specified files.
///</summary>
FOF_NO_CONNECTED_ELEMENTS = 0x2000,
///<summary>
///Send a warning if a file is being destroyed during a delete operation rather than recycled. This flag partially overrides FOF_NOCONFIRMATION.
///</summary>
FOF_WANTNUKEWARNING = 0x4000,
///<summary>
///Treat reparse points as objects, not containers.
///</summary>
FOF_NORECURSEREPARSE = 0x8000,
}
}

本文代码放在 githubgitee 上,可以使用如下命令行拉取代码。我整个代码仓库比较庞大,使用以下命令行可以进行部分拉取,拉取速度比较快

先创建一个空文件夹,接着使用命令行 cd 命令进入此空文件夹,在命令行里面输入以下代码,即可获取到本文的代码

git init
git remote add origin https://gitee.com/lindexi/lindexi_gd.git
git pull origin 9685aaf325b6d7deee15fd6488cd7533f7052ea2

以上使用的是国内的 gitee 的源,如果 gitee 不能访问,请替换为 github 的源。请在命令行继续输入以下代码,将 gitee 源换成 github 源进行拉取代码。如果依然拉取不到代码,可以发邮件向我要代码

git remote remove origin
git remote add origin https://github.com/lindexi/lindexi_gd.git
git pull origin 9685aaf325b6d7deee15fd6488cd7533f7052ea2

获取代码之后,进入 Workbench/KachelearnemChurjawenikall 文件夹,即可获取到源代码

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原文链接: http://blog.lindexi.com/post/dotnet-C-%E4%BD%BF%E7%94%A8-SHFileOperation-%E8%B0%83%E7%94%A8-Win32-%E7%9A%84%E6%96%87%E4%BB%B6%E5%A4%8D%E5%88%B6%E5%AF%B9%E8%AF%9D%E6%A1%86

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