(Unicode C) Rename Email Attachments After Adding

Demonstrates how to rename email attachments after adding but before sending.

Chilkat C/C++ Library Downloads
MS Visual C/C++ Linux/CentOS C/C++ Alpine Linux C/C++ MAC OS X C/C++	armhf/aarch64 C/C++ C++ Builder iOS C/C++ Android C/C++	Solaris C/C++ MinGW C/C++

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

void ChilkatSample(void)
    {
    HCkMailManW mailman;
    HCkEmailW email;
    BOOL success;
    const wchar_t *contentType;

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

    mailman = CkMailManW_Create();

    CkMailManW_putSmtpHost(mailman,L"smtp.my-mail-server.com");
    CkMailManW_putSmtpUsername(mailman,L"MY_SMTP_USERNAME");
    CkMailManW_putSmtpPassword(mailman,L"MY_SMTP_PASSWORD");
    CkMailManW_putSmtpSsl(mailman,TRUE);
    CkMailManW_putSmtpPort(mailman,465);

    email = CkEmailW_Create();

    CkEmailW_putSubject(email,L"This is a test");
    CkEmailW_putBody(email,L"This is a test");
    CkEmailW_putFrom(email,L"Chilkat Support <support@chilkatsoft.com>");
    success = CkEmailW_AddTo(email,L"Chilkat Admin",L"admin@chilkatsoft.com");
    // To add more recipients, call AddTo, AddCC, or AddBcc once per recipient.

    // Add some attachments.
    // The AddFileAttachment method returns the value of the content-type it chose for the attachment.
    contentType = CkEmailW_addFileAttachment(email,L"qa_data/jpg/starfish.jpg");
    if (CkEmailW_getLastMethodSuccess(email) != TRUE) {
        wprintf(L"%s\n",CkEmailW_lastErrorText(email));
        CkMailManW_Dispose(mailman);
        CkEmailW_Dispose(email);
        return;
    }

    contentType = CkEmailW_addFileAttachment(email,L"qa_data/pdf/fishing.pdf");
    if (CkEmailW_getLastMethodSuccess(email) != TRUE) {
        wprintf(L"%s\n",CkEmailW_lastErrorText(email));
        CkMailManW_Dispose(mailman);
        CkEmailW_Dispose(email);
        return;
    }

    // If we save the email to a .eml, we can examine in a text editor.
    success = CkEmailW_SaveEml(email,L"qa_output/e1.eml");
    if (success == FALSE) {
        wprintf(L"%s\n",CkEmailW_lastErrorText(email));
        wprintf(L"Failed to save .eml\n");
        CkMailManW_Dispose(mailman);
        CkEmailW_Dispose(email);
        return;
    }

    // We see the following in the e1.eml
    // Notice that Chilkat replaced the full path with just the filename.
    // The full local path is not part of the email that gets sent..

    // ...
    // --------------020807050607070004010609
    // Content-Type: image/jpeg; name="starfish.jpg"
    // Content-Transfer-Encoding: base64
    // Content-Disposition: attachment; filename="starfish.jpg"
    // 
    // ...
    // --------------020807050607070004010609
    // Content-Type: application/pdf; name="fishing.pdf"
    // Content-Transfer-Encoding: base64
    // Content-Disposition: attachment; filename="fishing.pdf"
    // ...

    // Before sending, each filename can be changed within the email object.
    // For example:
    success = CkEmailW_SetAttachmentFilename(email,0,L"orange_starfish.jpg");
    success = CkEmailW_SetAttachmentFilename(email,1,L"tuna_fishing.pdf");

    // Look at the new MIME source of the email in a  text editor...
    success = CkEmailW_SaveEml(email,L"qa_output/e2.eml");
    if (success == FALSE) {
        wprintf(L"%s\n",CkEmailW_lastErrorText(email));
        wprintf(L"Failed to save .eml\n");
        CkMailManW_Dispose(mailman);
        CkEmailW_Dispose(email);
        return;
    }

    // You'll see this:

    // ...
    // --------------020807050607070004010609
    // Content-Type: image/jpeg; name="orange_starfish.jpg"
    // Content-Transfer-Encoding: base64
    // Content-Disposition: attachment; filename="orange_starfish.jpg"
    // 
    // ...
    // --------------020807050607070004010609
    // Content-Type: application/pdf; name="tuna_fishing.pdf"
    // Content-Transfer-Encoding: base64
    // Content-Disposition: attachment; filename="tuna_fishing.pdf"
    // ...

    // Send the email with the updated filenames..
    success = CkMailManW_SendEmail(mailman,email);
    if (success != TRUE) {
        wprintf(L"%s\n",CkMailManW_lastErrorText(mailman));
        CkMailManW_Dispose(mailman);
        CkEmailW_Dispose(email);
        return;
    }

    success = CkMailManW_CloseSmtpConnection(mailman);
    if (success != TRUE) {
        wprintf(L"Connection to SMTP server not closed cleanly.\n");
    }

    wprintf(L"Mail with attachments sent!\n");


    CkMailManW_Dispose(mailman);
    CkEmailW_Dispose(email);

    }