(C++) Unzip Selected Files from a Zip Archive

Demonstrates how to iterate over the files contained within a .zip and unzip specific files.

Note: This example requires Chilkat v11.0.0 or greater.

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#include <CkZip.h>
#include <CkZipEntry.h>

void ChilkatSample(void)
    {
    bool success = false;

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkZip zip;

    success = zip.OpenZip("my_files.zip");
    if (success == false) {
        std::cout << zip.lastErrorText() << "\r\n";
        return;
    }

    const char *unzipDir = "/temp/unzipDir";

    // Get the number of files and directories in the .zip
    int n = zip.get_NumEntries();

    CkZipEntry entry;

    int i = 0;
    while (i < n) {

        zip.EntryAt(i,entry);
        if (entry.get_IsDirectory() == false) {
            // (the filename may include a path)
            std::cout << entry.fileName() << "\r\n";

            // Your application may choose to unzip this entry
            // based on the filename.
            // If the entry should be unzipped, then call Extract(unzipDir)
            success = entry.Extract(unzipDir);
            if (success == false) {
                std::cout << entry.lastErrorText() << "\r\n";
                return;
            }

        }

        i = i + 1;
    }
    }