如何通过Windows原生API获取目录信息？

发布于 2024-08-24 05:19:24 字数 466 浏览 8 评论 0原文

我可以使用以下代码获取文件的创建日期、文件大小等：

// Error handling removed for brevity 
HANDLE hFile = CreateFile(path, GENERIC_READ, FILE_SHARE_READ, 
             NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); 

LARGE_INTEGER fileSize; 
GetFileSizeEx(hFile, &fileSize); 

FILE_BASIC_INFO fileInfo); 
GetFileInformationByHandle(hFile, FileBasicInfo, fileInfo, sizeof(fileInfo));

但是当针对目录调用时，所有值都设置为零 - 如何获取目录信息？

谢谢

原文

I can get the created date, file size etc for a file using the following code:

// Error handling removed for brevity 
HANDLE hFile = CreateFile(path, GENERIC_READ, FILE_SHARE_READ, 
             NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); 

LARGE_INTEGER fileSize; 
GetFileSizeEx(hFile, &fileSize); 

FILE_BASIC_INFO fileInfo); 
GetFileInformationByHandle(hFile, FileBasicInfo, fileInfo, sizeof(fileInfo));

But when called against a directory, all values are set to zero - how do I get directory info?

Thanks

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活泼老夫 2024-08-31 05:19:24

一旦您必须传递此标志才能获取目录的有效句柄，我就遇到了类似的情况。来自 MSDN 文档。

试试这个

HANDLE hFile = CreateFile(path, GENERIC_READ, FILE_SHARE_READ, 
         NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL|FILE_FLAG_BACKUP_SEMANTICS, NULL);

FILE_FLAG_BACKUP_SEMANTICS |您必须设置此标志才能获取目录的句柄。可以将目录句柄而不是文件句柄传递给某些函数。有关详细信息，请参阅备注部分。

I ran into something like this once you have to pass this flag to get a valid handle for a directory. From the MSDN documentation.

try this

HANDLE hFile = CreateFile(path, GENERIC_READ, FILE_SHARE_READ, 
         NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL|FILE_FLAG_BACKUP_SEMANTICS, NULL);

FILE_FLAG_BACKUP_SEMANTICS | You must set this flag to obtain a handle to a directory. A directory handle can be passed to some functions instead of a file handle. For more information, see the Remarks section.

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