(Unicode 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.

Chilkat C/C++ Library Downloads
MS Visual C/C++ C++ Builder Linux C/C++ Alpine Linux C/C++	MacOS C/C++ iOS C/C++ Android C/C++ MinGW C/C++

#include <C_CkMailManW.h>
#include <C_CkEmailW.h>

void ChilkatSample(void)
    {
    HCkMailManW mailman;
    int numBodyLines;
    int msgnum;
    HCkEmailW emailObj;
    BOOL headerOnly;
    HCkEmailW emailOut;
    BOOL success;

    mailman = CkMailManW_Create();

    // ...
    // ...

    numBodyLines = 5;
    msgnum = 1;

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

    emailObj = CkMailManW_FetchSingleHeader(mailman,numBodyLines,msgnum);
    if (CkMailManW_getLastMethodSuccess(mailman) == FALSE) {
        wprintf(L"%s\n",CkMailManW_lastErrorText(mailman));
        CkMailManW_Dispose(mailman);
        return;
    }

    // ...
    // ...

    CkEmailW_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 = CkEmailW_Create();
    success = CkMailManW_FetchOne(mailman,headerOnly,numBodyLines,msgnum,emailOut);
    if (success == FALSE) {
        wprintf(L"%s\n",CkMailManW_lastErrorText(mailman));
        CkMailManW_Dispose(mailman);
        CkEmailW_Dispose(emailOut);
        return;
    }



    CkMailManW_Dispose(mailman);
    CkEmailW_Dispose(emailOut);

    }