Extract files into memory, password protected

[Didar Uranov]

Hello. I made an archive with 7zip. It is password protected, also headers are protected with -mhe switch.
I want to decompress it into memory. Used Client7z (CPP\7zip\UI\Client7z) as an example. It works fine, but in this example I found out how to extract into some folder, but I need extract forward into memory, without extracting it first into a disk space.
Help please.

[Igor Pavlov]

Use  CBufPtrSeqOutStream object instead of COutFileStream.
Change the code:
    _outFileStreamSpec = new COutFileStream;
    CMyComPtr<ISequentialOutStream> outStreamLoc(_outFileStreamSpec);
    if (!_outFileStreamSpec->Open(fullProcessedPath, CREATE_ALWAYS))

[Didar Uranov]

I'm not really good at 7z sources.
I found some code that uses CBufPtrSeqOutStream, and its Init method requires(as I understand) the size of unpacked data.
Could you please give an exact explanation on how to use CBufPtrSeqOutStream ?
I have no folders inside my archieve, only files.

[Igor Pavlov]

You can request uncompressed size of any file in archive with the following code:
          // Get uncompressed size of file
          NCOM::CPropVariant prop;
          archive->GetProperty(i, kpidSize, &prop);