C++

Unzip Files in a Date Range

See more Zip Examples

Demonstrates how to use the Zip.MinDate and Zip.MaxDate properties to unzip only those files with a last-modified date within a date range.

Note: This example requires Chilkat v10.0.0 or greater.

C++

#include <CkZip.h>

void ChilkatSample(void)
    {
    bool success = false;

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

    CkZip zip;

    success = zip.OpenZip("qa_data/zips/sample.zip");
    if (success != true) {
        std::cout << zip.lastErrorText() << "\r\n";
        return;
    }

    //  The MinDate and MaxDate properties use the timestamp date/time string format.
    //  Here are some examples:
    //  YYYY-MM-DD (e.g., 2024-07-31)
    //  YYYY-MM-DDTHH:MM:SS�HH:MM (e.g., 2024-07-31T12:34:56+02:00)
    //  2024-07-31T12:34:56Z (the "Z" denotes Zulu time, or UTC)

    //  Only unzip files having a last-modified date greater than 1-Jan-2017
    zip.put_MinDate("2017-01-01T00:00:00Z");

    //  Also, only unzip files having a last-modified date less than the end of 2020
    zip.put_MaxDate("2020-12-31T23:59:59Z");

    //  You don't need to specify both MinDate and MaxDate.
    //  You can specify only one or the other if needed.

    //  The MinDate/MaxDate properties apply to all of the Chilkat methods for unzipping.

    int numUnzipped = zip.Unzip("c:/temp/unzipDir");
    if (numUnzipped < 0) {
        std::cout << zip.lastErrorText() << "\r\n";
        return;
    }

    zip.CloseZip();
    }