如何得到文件夹的短文件夹名？

[cycloneboy]

在VC中怎么将长文件名转换为短文件名呢？
就比如“program files"在dos下是“progra~1”

[蒋晟]

Platform SDK: File Storage
GetShortPathName
The GetShortPathName function retrieves the short path form of a specified input path.

DWORD GetShortPathName(
LPCTSTR lpszLongPath, // null-terminated path string
LPTSTR lpszShortPath, // short form buffer
DWORD cchBuffer // size of short form buffer
);
Parameters
lpszLongPath
[in] Pointer to a null-terminated path string. The function retrieves the short form of this path.
Windows NT/2000/XP: In the ANSI version of this function, the name is limited to MAX_PATH characters. To extend this limit to nearly 32,000 wide characters, call the Unicode version of the function and prepend "\\?\" to the path. For more information, see File Name Conventions.

Windows 95/98/Me: This string must not exceed MAX_PATH characters.

lpszShortPath
[out] Pointer to a buffer to receive the null-terminated short form of the path specified by lpszLongPath.
cchBuffer
[in] Specifies the size, in TCHARs, of the buffer pointed to by lpszShortPath.
Return Values
If the function succeeds, the return value is the length, in TCHARs, of the string copied to lpszShortPath, not including the terminating null character.

If the lpszShortPath buffer is too small to contain the path, the return value is the size of the buffer, in TCHARs, required to hold the path. Therefore, if the return value is greater than cchBuffer, call the function again with a buffer that is large enough to hold the path.

If the function fails for any other reason, the return value is zero. To get extended error information, call GetLastError.

Remarks
When an application calls this function and specifies a path on a volume that does not support 8.3 aliases, the function fails with ERROR_INVALID_PARAMETER if the path is longer than 67 bytes.

The path specified by lpszLongPath does not have to be a full or a long path. The short form may be longer than the specifed path.

If the specified path is already in its short form, there is no need for any conversion, and the function simply copies the specified path to the buffer for the short path.

You can set lpszShortPath to the same value as lpszLongPath; in other words, you can set the buffer for the short path to the address of the input path string.

You can obtain the long name of a file from the short name by calling the GetLongPathName function. Alternatively, where GetLongPathName is not available, you can call FindFirstFile on each component of the path to get the corresponding long name.

Windows 95/98/Me: GetShortPathNameW is supported by the Microsoft Layer for Unicode. To use this, you must add certain files to your application, as outlined in Microsoft Layer for Unicode on Windows 95/98/Me Systems.

Requirements
Windows NT/2000/XP: Included in Windows NT 3.5 and later.
Windows 95/98/Me: Included in Windows 95 and later.
Header: Declared in Winbase.h; include Windows.h.
Library: Use Kernel32.lib.
Unicode: Implemented as Unicode and ANSI versions on Windows NT/2000/XP. Also supported by Microsoft Layer for Unicode.

See Also
File I/O Overview, File I/O Functions, FindFirstFile, GetFullPathName, GetLongPathName, SetFileShortName

Platform SDK Release: August 2001 What did you think of this topic?
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Requirements
Windows NT/2000/XP: Included in Windows NT 3.5 and later.
Windows 95/98/Me: Included in Windows 95 and later.
Header: Declared in Winbase.h; include Windows.h.
Library: Use Kernel32.lib.
Unicode: Implemented as Unicode and ANSI versions on Windows NT/2000/XP. Also supported by Microsoft Layer for Unicode.
See Also
File I/O Overview, File I/O Functions, FindFirstFile, GetFullPathName, GetLongPathName, SetFileShortName

[ju_feng]

自己编个函数就可以。用GetFileName( ) 得到文件名然后判断文件名长度！

直接得到短文件名的函数没见过！！