Unicode C

Get the Filename of an Attachment

Demonstrates the Chilkat Email.GetAttachmentFilename method, which retrieves an attachment's filename as stored in the MIME. The index is zero-based. This example adds an attachment and reads its filename.

Background: An attachment's filename comes from the sender's message and is not guaranteed to be safe or unique — it may include path separators or characters that are awkward on the local filesystem, and two attachments can share a name. When saving attachments to disk, treat this value as untrusted input: sanitize it and guard against collisions (see the OverwriteExisting property, which can auto-generate unique names).

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Unicode C

#include <C_CkEmailW.h>

void ChilkatSample(void)
    {
    HCkEmailW email;
    const wchar_t *fname;

    //  Demonstrates the GetAttachmentFilename method, which retrieves an attachment's filename
    //  (as stored in the MIME).  The index is zero-based.

    email = CkEmailW_Create();
    CkEmailW_putSubject(email,L"Attachment filename");

    CkEmailW_AddStringAttachment(email,L"notes.txt",L"Some notes.");

    //  Get the filename of the first attachment (index 0).
    fname = CkEmailW_getAttachmentFilename(email,0);
    wprintf(L"Attachment 0 filename: %s\n",fname);


    CkEmailW_Dispose(email);

    }