How to get file's length and date from zip

[svrsvr]

I want to know the file's length and date before unzip it from zip file,because some big file need long time,the scripts looks like no respond.so
I did this,but not work...

dll qmzip.dll #OpenZip hFile
dll qmzip.dll #GetZipItem hZip index *zipEntry
dll qmzip.dll #CloseZip hZip

str s="C:\111.zip"

int ii=OpenZip(s)
out ii

0

but return ii=0,where is the problem? Many thanks for your help!