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Long name from DOS short name

Posted on 2002-05-16
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Last Modified: 2013-11-20
Hi - Say that I have a CString that contains a valid file name, but it uses the short name like "C:\progra~1\my~1.txt"

How can I get a CString that looks like:
1 - "C:\Program Files\My File.txt"

and (not required, but would be nice)

2 - "\\mymachine\c\Program Files\My File.txt"

My main target is NT4.0.

Any help would be great.
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Question by:marcus78
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Accepted Solution

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jkr earned 75 total points
ID: 7014290
Use 'GetShortPathName()':

GetShortPathName
The GetShortPathName function obtains the short path form of a specified input path.

DWORD GetShortPathName(
  LPCTSTR lpszLongPath,  // pointer to a null-terminated path string
  LPTSTR lpszShortPath,  // pointer to a buffer to receive the
                         // null-terminated short form of the path
  DWORD cchBuffer        // specifies the size of the buffer pointed
                         // to by lpszShortPath
);
 
Parameters
lpszLongPath
Pointer to a null-terminated path string. The function obtains the short form of this path.
lpszShortPath
Pointer to a buffer to receive the null-terminated short form of the path specified by lpszLongPath.
cchBuffer
Specifies the size, in characters, of the buffer pointed to by lpszShortPath.
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Expert Comment

by:jkr
ID: 7014297
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Expert Comment

by:Crius
ID: 7014399
I think you have it backwards jkr. :) I believe marcus78 wants GetLongPathName() instead...
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LVL 86

Expert Comment

by:jkr
ID: 7014419
You are right :o)
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Author Comment

by:marcus78
ID: 7014421
Crius, you're right I do want the long path, just haven't been able to try it out yet.  I'll get back to you and jkr later.
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Author Comment

by:marcus78
ID: 7015443
Crius, GetLongPathName() isn't supported in NT 4.0, so I couldn't use that.  Thanks for pointing it out though.

jkr, while GetShortPathName was the opposite of what I needed, it put me on the right track to end up using FindFirstFile.  I was able to use this to determine the long path in NT 4.0.  Thanks for your help!

Marcus
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