(C) Transition from MailMan.FetchSingleHeader to MailMan.FetchOne

Provides instructions for replacing deprecated FetchSingleHeader method calls with FetchOne.

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

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#include <C_CkMailMan.h>
#include <C_CkEmail.h>

void ChilkatSample(void)
    {
    HCkMailMan mailman;
    int numBodyLines;
    int msgnum;
    HCkEmail emailObj;
    BOOL headerOnly;
    HCkEmail emailOut;
    BOOL success;

    mailman = CkMailMan_Create();

    // ...
    // ...

    numBodyLines = 5;
    msgnum = 1;

    // ------------------------------------------------------------------------
    // The FetchSingleHeader method is deprecated:

    emailObj = CkMailMan_FetchSingleHeader(mailman,numBodyLines,msgnum);
    if (CkMailMan_getLastMethodSuccess(mailman) == FALSE) {
        printf("%s\n",CkMailMan_lastErrorText(mailman));
        CkMailMan_Dispose(mailman);
        return;
    }

    // ...
    // ...

    CkEmail_Dispose(emailObj);

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

    headerOnly = TRUE;

    emailOut = CkEmail_Create();
    success = CkMailMan_FetchOne(mailman,headerOnly,numBodyLines,msgnum,emailOut);
    if (success == FALSE) {
        printf("%s\n",CkMailMan_lastErrorText(mailman));
        CkMailMan_Dispose(mailman);
        CkEmail_Dispose(emailOut);
        return;
    }



    CkMailMan_Dispose(mailman);
    CkEmail_Dispose(emailOut);

    }