How can I get the DOS Path from windows full path?

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How can I get the DOS Path from windows full path?
For example, if I am in the directory "C:\Program Files\Java\jdk1.6.0_22", I want to display it's short name "C:\PROGRA~1\Java\JDK16~1.0_2".

Posted 29-Feb-12 0:22am

S.Sls76

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Abhinav S · Answer 1 · 2012-02-29T00:30:00

Solution 1

Try using the GetShortPathName method[^].
However, this uses interop.

How to get the ShortPathName of a LongPathName in VB and VB.NET [^] is another example where unmanaged code does this for you.

Posted 29-Feb-12 0:30am

Abhinav S

Comments

Venkatesh Mookkan 29-Feb-12 6:32am

Good one!

Abhinav S 29-Feb-12 6:38am

Thank you. Off topic - you are not visiting the GIT anymore?

Venkatesh Mookkan 1-Mar-12 1:03am

I am visiting daily. But not participating regularly due to project needs. I am glad to see more new peoples around!

Chandrakantt · Answer 2 · 2012-02-29T00:32:00

For getting short path name you have to can un-managed API GetShortPathName

C#

public static string GetShortName(string sLongFileName) {
  var buffer = new StringBuilder(259);
  int len = GetShortPathName(sLongFileName, buffer, buffer.Capacity);
  if (len == 0) throw new System.ComponentModel.Win32Exception();
  return buffer.ToString();
}

[DllImport("kernel32", EntryPoint = "GetShortPathName", CharSet = CharSet.Auto, SetLastError = true)]
private static extern int GetShortPathName(string longPath, StringBuilder shortPath, int bufSize);

Below provided links can provide you more help
http://stackoverflow.com/questions/2585171/getshortpathnamea-not-working-in-c-sharp[^]
http://www.pinvoke.net/default.aspx/kernel32.GetShortPathName[^]