msdn笔记(六):CAtlFile::Create;File Security and Access Rights;

本文档详细介绍了CAtlFile::Create方法,用于创建或打开文件,强调了文件安全性和访问权限。讨论了相关参数及返回值,是理解ATL文件操作的重要参考资料。

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1.CAtlFile::Create

Call this method to create or open a file.

HRESULT Create(
   LPCTSTR szFilename,
   DWORD dwDesiredAccess,
   DWORD dwShareMode,
   DWORD dwCreationDisposition,
   DWORD dwFlagsAndAttributes = FILE_ATTRIBUTE_NORMAL,
   LPSECURITY_ATTRIBUTES lpsa = NULL,
   HANDLE hTemplateFile = NULL 
) throw( );
Parameters
szFilename
The file name.
dwDesiredAccess
The desired access. See dwDesiredAccess in tabindex="0" keywords="_win32_CreateFile"/>CreateFile in the Platform SDK.
dwShareMode
The share mode. See dwShareMode in CreateFile.
dwCreationDisposition
The creation disposition. See dwCreationDisposition in CreateFile.
dwFlagsAndAttributes
The flags and attributes. See dwFlagsAndAttributes in CreateFile.
lpsa
The security attributes. See lpSecurityAttributes in CreateFile.
hTemplateFile
The template file. See hTemplateFile in CreateFile.
Return Value

Returns S_OK on success, or an error HRESULT on failure.

lpFileName

[in] Pointer to a null-terminated string that specifies the name of the object to create or open.

In the ANSI version of this function, the name is limited to MAX_PATH characters. To extend this limit to 32,767 wide characters, call the Unicode version of the function and prepend "//?/" to the path. For more information, see Naming a File.

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