(C++) Transition from MailMan.GetHeaders to MailMan.FetchRange

Provides instructions for replacing deprecated GetHeaders method calls with FetchRange.

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

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#include <CkMailMan.h>
#include <CkEmailBundle.h>

void ChilkatSample(void)
    {
    CkMailMan mailman;

    // ...
    // ...

    int numBodyLines = 3;
    int fromIndex = 0;
    int toIndex = 9;

    // ------------------------------------------------------------------------
    // The GetHeaders method is deprecated:

    CkEmailBundle *bundleObj = mailman.GetHeaders(numBodyLines,fromIndex,toIndex);
    if (mailman.get_LastMethodSuccess() == false) {
        std::cout << mailman.lastErrorText() << "\r\n";
        return;
    }

    // ...
    // ...

    delete bundleObj;

    // ------------------------------------------------------------------------
    // Do the equivalent using FetchRange.
    // Your application creates a new, empty EmailBundle object which is passed 
    // in the last argument and filled upon success.

    bool keepOnServer = true;
    bool headersOnly = true;

    CkEmailBundle bundleOut;
    bool success = mailman.FetchRange(keepOnServer,headersOnly,numBodyLines,fromIndex,toIndex,bundleOut);
    if (success == false) {
        std::cout << mailman.lastErrorText() << "\r\n";
        return;
    }
    }