如果copyTo和copyFrom目录相同，则SHFileOperation不起作用-这是一个错误吗? [英] SHFileOperation doesn't work if copyTo and copyFrom directories are the same - is this a bug?

问题描述

我正在尝试使用SHFileOperation将目录复制到自身中

例如将文件夹C:\ folder1 \ folder2复制到C:\ folder1 \ folder2，以C:\ folder1 \ folder2 \ folder2结尾.

folder2包含文件和文件夹.

这是唯一无法使SHFileOperation正常工作的情况.

为了解决这个问题，我尝试首先创建一个新目录:

I am trying to use SHFileOperation to copy a directory into itself

e.g. copy the folder C:\folder1\folder2 into C:\folder1\folder2 to end up with C:\folder1\folder2\folder2.

folder2 contains file and folders.

This is the only case which I cannot get SHFileOperation to work.

In order to get round this problem, I tried creating a new directory first:

CreateDirectory("C:\folder1\folder2\folder2", NULL);

然后将"C:\ folder1 \ folder2 \ *"复制到"C:\ folder1 \ folder2 \ folder2"

这样就创建了新目录，并将所有文件从C:\ folder1 \ folder2复制到C:\ folder1 \ folder2 \ folder2，但是没有复制任何目录(我没有设置停止递归的标志).

有没有其他人遇到这个问题，或者知道一个解决方法?否则，我将不得不编写自己的递归方法:(..

and then copying "C:\folder1\folder2\*" to "C:\folder1\folder2\folder2"

This created the new directory and copied any files from C:\folder1\folder2 into C:\folder1\folder2\folder2 but it did not copy any directories (I do not have the flag set to stop recursion).

Has anyone else had this problem, or know a way round it? Otherwise I will have to write my own recursive method :(.

推荐答案

复制到临时目录，然后将其移动到目标目录.

Copy to a temporary directory and then move that to the destination.

msdn说:

msdn says:

pFrom
    
        Type: LPCTSTR
    
        Note  This string must be double-null terminated.
    
        A pointer to one or more source file names. These names should be fully-qualified paths to prevent unexpected results.
    
        Standard MS-DOS wildcard characters, such as "*", are permitted only in the file-name position. Using a wildcard character elsewhere in the string will lead to unpredictable results.
    
        Although this member is declared as a single null-terminated string, it is actually a buffer that can hold multiple null-delimited file names. Each file name is terminated by a single NULL character. The last file name is terminated with a double NULL character ("\0\0") to indicate the end of the buffer.

(来自 http://msdn.microsoft.com/zh-cn/library/windows/desktop/bb759795％28v = vs.85％29.aspx [ lpszFromDir +"\\ *.*" .您可以使用::PathCombine() API附加通配符.

希望对您有所帮助，

(from http://msdn.microsoft.com/en-us/library/windows/desktop/bb759795%28v=vs.85%29.aspx[^])
In other words, your pFrom parameter should be lpszFromDir + "\\*.*". You can use the ::PathCombine() API to append the wildcard.

Hope this helps,

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