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Unicode C

Add Header Field to MIME Sub-Header in Email

See more Email Object Examples

Demonstrates how to add a header field to one of the attachment sub-headers in an email.

Chilkat Unicode C Downloads

Unicode C
#include <C_CkEmailW.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkEmailW email;

    success = FALSE;

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

    email = CkEmailW_Create();

    CkEmailW_putSubject(email,L"test");
    CkEmailW_AddTo(email,L"Chilkat",L"support@chilkatsoft.com");
    CkEmailW_putFrom(email,L"Matt <matt@example.com>");
    CkEmailW_putBody(email,L"This is a simple plain-text body.");

    success = CkEmailW_AddFileAttachment2(email,L"qa_data/1.HPM",L"application/x-hprimnet");
    if (success == FALSE) {
        wprintf(L"%s\n",CkEmailW_lastErrorText(email));
        CkEmailW_Dispose(email);
        return;
    }

    // Add a "ContentDescription: HPM/3.0" in the attachment's sub-header.
    // The 1st attachment is at index 0.
    CkEmailW_AddAttachmentHeader(email,0,L"Content-Description",L"HPM/3.0");

    // Show the email MIME:
    wprintf(L"%s\n",CkEmailW_getMime(email));

    // This is the output:

    // MIME-Version: 1.0
    // Date: Wed, 16 Jan 2019 10:05:18 -0600
    // Message-ID: <93B88835586270B7BE5202F84E171F29C10BA935@CHILKATSLICE>
    // Content-Type: multipart/mixed; boundary="------------000502000000020502010608"
    // X-Priority: 3 (Normal)
    // Subject: test
    // To: Chilkat <support@chilkatsoft.com>
    // From: Matt <matt@example.com>
    // 
    // --------------000502000000020502010608
    // Content-Type: text/plain; charset=us-ascii; format=flowed
    // Content-Transfer-Encoding: 7bit
    // 
    // This is a simple plain-text body.
    // --------------000502000000020502010608
    // Content-Type: application/x-hprimnet; name="1.HPM"
    // Content-Transfer-Encoding: base64
    // Content-Disposition: attachment; filename="1.HPM"
    // Content-Description: HPM/3.0
    // 
    // FILE_DATA_IS_HERE...
    // 
    // --------------000502000000020502010608--


    CkEmailW_Dispose(email);

    }