Unicode C

Clear the S/MIME Recipient Certificate List

Demonstrates ClearEncryptCerts, which empties the recipient-certificate list previously populated by AddEncryptCert. This is useful to start over with a different set of recipients before calling EncryptN.

Background. The recipient list is internal state that accumulates across AddEncryptCert calls. ClearEncryptCerts resets it so a subsequent EncryptN encrypts only for the certificates added afterward.

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Unicode C

#include <C_CkMimeW.h>
#include <C_CkCertW.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkMimeW mime;
    HCkCertW cert;

    success = FALSE;

    mime = CkMimeW_Create();
    success = CkMimeW_SetBodyFromPlainText(mime,L"This message will be encrypted.");
    if (success == FALSE) {
        wprintf(L"%s\n",CkMimeW_lastErrorText(mime));
        CkMimeW_Dispose(mime);
        return;
    }

    //  Add a recipient certificate.
    cert = CkCertW_Create();
    success = CkCertW_LoadFromFile(cert,L"qa_data/recipient.cer");
    if (success == FALSE) {
        wprintf(L"%s\n",CkCertW_lastErrorText(cert));
        CkMimeW_Dispose(mime);
        CkCertW_Dispose(cert);
        return;
    }

    success = CkMimeW_AddEncryptCert(mime,cert);
    if (success == FALSE) {
        wprintf(L"%s\n",CkMimeW_lastErrorText(mime));
        CkMimeW_Dispose(mime);
        CkCertW_Dispose(cert);
        return;
    }

    //  ClearEncryptCerts empties the recipient-certificate list, for example to start over with a
    //  different set of recipients before calling EncryptN.  It is a void method.
    CkMimeW_ClearEncryptCerts(mime);

    wprintf(L"Recipient certificate list cleared.\n");


    CkMimeW_Dispose(mime);
    CkCertW_Dispose(cert);

    }