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Thread: Using quazip for extracting multiple files.

  1. #1
    Join Date
    Jul 2013
    Qt products
    Unix/X11 Windows

    Default Using quazip for extracting multiple files.

    Hello friends,
    I am using QuaZip for extracting multiple files from a archive. I just need help on one small thing. As per the documentation of quazip says, amongst, JICompress, there is a method which can be used to extract multiple files at a given time. Link:-

    QStringList JlCompress::extractFiles(QString fileCompressed,QSringList files,QString dir=QString() )[static]
    fileCompressed The name of the archive.
    files The file list to extract.
    dir The directory to put the files to, the current directory if left empty.
    The list of the full paths of the files extracted, empty on failure.

    My apologies for the redundancy. As of now, i have the object and all of JICompress. I want to extract all files from the archive. I dont understand 2 parameters here. The return parameter, I dont understand why its necessary, as we are specifying the path of extraction. And what should i put for the 2nd parameter where is says the file list to extract. How can i say all, there are a lot of files, i cant just go on specifying names for each, as their names might change. Sorry for the long thread. Thank you for your time.

  2. #2
    Join Date
    Nov 2007
    Thanked 9 Times in 9 Posts
    Qt products

    Default Re: Using quazip for extracting multiple files.

    here a snippet from a library I wrote for my own purpose:

    Qt Code:
    1. void extractAll( QuaZip& archive )
    2. {
    3. // extracts all files from the archive and saves
    4. // them onto disk
    5. //
    6. // just a simple implementation for evaluation.
    7. // error handling has not been implemented yet!
    9. for( bool f = archive.goToFirstFile(); f; f = archive.goToNextFile() )
    10. {
    11. // set source file in archive
    12. QString filePath = archive.getCurrentFileName();
    13. QuaZipFile zFile( archive.getZipName(), filePath );
    14. // open the source file
    15. QIODevice::ReadOnly );
    16. // create a bytes array and write the file data into it
    17. QByteArray ba = zFile.readAll();
    18. // close the source file
    19. zFile.close();
    20. // set destination file
    21. QFile dstFile( filePath );
    22. // open the destination file
    23. QIODevice::WriteOnly | QIODevice::Text );
    24. // write the data from the bytes array into the destination file
    25. dstFile.write( );
    26. //close the destination file
    27. dstFile.close();
    28. }
    29. }
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  3. The following user says thank you to alainstgt for this useful post:

    akshaysulakhe (27th July 2013)

  4. #3
    Join Date
    Jul 2013
    Qt products
    Unix/X11 Windows

    Default Re: Using quazip for extracting multiple files.

    Thanks, i mainly wanted extractDir, which i got from elsewhere.

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