(MFC) Unzip Text File to String

Demonstrates how to open a .zip and extract the 1st file (assuming it's a text file) to a string variable.

Chilkat C/C++ Library Downloads MS Visual C/C++ Libs

See Also: Using MFC CString in Chilkat

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

void ChilkatSample(void)
    {
    CkString strOut;

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

    CkZip zip;

    bool success = zip.OpenZip("qa_data/zips/EC16100.zip");
    if (success != true) {
        strOut.append(zip.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    // Get the 1st file in the .zip
    CkZipEntry *entry = zip.GetEntryByIndex(0);
    if (zip.get_LastMethodSuccess() != true) {
        strOut.append("No files in this zip.");
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    const char *fileContents = entry->unzipToString(0,"utf-8");
    strOut.append(fileContents);
    strOut.append("\r\n");

    delete entry;


    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());

    }