QuaZip - Undefined Reference

[Christian Ehrlicher]

@FluentCoding said in QuaZip - Undefined Reference:

Btw is it possible to open a zip file from a QByteArray (from memory generally)?

yes

[FluentCoding]

@Christian-Ehrlicher How, if I may ask? I haven't found the appropiate method for that.

[mrjj]

@FluentCoding
Hi
Yes it can be both memory and file-based
see section
Extract a zip entry into memory using callback.

[FluentCoding]

This post is deleted!

[FluentCoding]

@mrjj Thanks but I meant from memory, not into memory.

[mrjj]

@FluentCoding
if you mean
Can i add a buffer to the zip file as was it a file then yes :)

                auto bytes = QByteArray::fromRawData(reinterpret_cast<const char *>(memory), int(fileSize32Bit));
                zip_entry_write(zip, bytes, fileSize32Bit);

[FluentCoding]

@mrjj Alright - (hopefully the) last question: How can I create zip_t object without zip_open, so that i only use zip_entry_write to add the buffer? Should I just create an object of the struct zip_t? Also, should I replace fileSize32Bit with the size of the QByteArray?

[mrjj]

Hi
I have not tried that but look in zip.c and

struct zip_t *zip_open(const char *zipname, int level, char mode) {

I think you can init it up as you like if you follow that code and the various modes + flags.

Yes, fileSize32Bit should be the QByteArray size.

[FluentCoding]

Alright, but I think that I'll try another framework :/ It seems that I can run into problems - im neither sure if the zip files i wanna extract are 32 bit and maybe, I would need to extract a .rar or .7z later. I will give Zipper a try. But thank you very much for your support, @mrjj.

[mrjj]

@FluentCoding
Hi
Ok. Please post if you find something good that is easy to compile on windows.
Also, could you pos the link for the zlib you used ?
I cannot find any MSI and Im still abit hooked on QuaZip :)

[FluentCoding]

Sure, @mrjj.

http://gnuwin32.sourceforge.net/packages/zlib.htm

This is the official download page. If you search good enough on the zlib homepage, you'll see that you have to download the binaries from this page.

[mrjj]

@FluentCoding
So you took one of these ?

[FluentCoding]

@mrjj Yeah, the "Complete package, except sources" one.

[mrjj]

@FluentCoding
Ok super. The DLL is from 2005.
Will try and see what visual studio thinks of it.

[FluentCoding]

@mrjj Alright.