Unicode C++

Check if a MIME Entity is Multipart

Demonstrates the Chilkat Mime.IsMultipart method, which returns whether the Content-Type begins with multipart/. It takes no arguments.

Note: The file path is relative to the application's current working directory. Absolute paths may also be used. Supply the path to your own file.

Background: The first question when processing a message is usually whether it is a single part or a container of parts, because that decides whether you read the body directly or iterate children. IsMultipart answers it for any of the multipart subtypes at once; use the more specific predicates when the exact subtype matters.

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Unicode C++

#include <CkMimeW.h>

void ChilkatSample(void)
    {
    bool success = false;

    //  Demonstrates the Mime.IsMultipart method, which returns whether the Content-Type begins with multipart/.  It takes no arguments.

    CkMimeW mime;
    success = mime.LoadMimeFile(L"qa_data/multipart_message.eml");
    if (success == false) {
        wprintf(L"%s\n",mime.lastErrorText());
        return;
    }

    if (mime.IsMultipart()) {
        wprintf(L"This is a multipart entity.\n");
    }
    else {
        wprintf(L"This is not a multipart entity.\n");
    }
    }