python : how to Opens folder with specified items selected on Windows

[iMath]

I want to Opens folder with specified items selected on Windows ,I looked up the The Windows Shell Reference found a function fit for this job 
 
SHOpenFolderAndSelectItems
 
http://msdn.microsoft.com/en-us/library/windows/desktop/bb762232(v=vs.85).aspx
 
but I cannot find an example on how to use it with python 
 
so anyone can give a little example ?
 
I have another extra requirement :if that folder already open ,don’t open it again ,just activate it and selected the file
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