(Unicode C++) Append Part to MIME

Demonstrates the AppendPart method for adding sub-parts to MIME.

Note: This example requires Chilkat v11.0.0 or greater.

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#include <CkMimeW.h>

void ChilkatSample(void)
    {
    bool success = false;

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

    // Create a text/plain part.
    CkMimeW ptMime;
    ptMime.SetBodyFromPlainText(L"This is the plain text body");
    wprintf(L"%s\n",ptMime.getMime());
    wprintf(L"****\n");

    // The ptMime contains:
    // ---------------------------------------
    // 	Content-Type: text/plain
    // 	Content-Transfer-Encoding: 7bit
    // 
    // 	This is the plain text body
    // ---------------------------------------

    // Start with an empty MIME object...
    CkMimeW topLevelMime;

    // Initialize it to a multipart Content-Type.  We'll use multipart/mixed.
    topLevelMime.NewMultipartMixed();

    // Append the ptMime as a child.
    topLevelMime.AppendPart(ptMime);
    wprintf(L"%s\n",topLevelMime.getMime());
    wprintf(L"****\n");

    // The topLevelMime contains:
    // --------------------------
    // 	Content-Type: multipart/mixed; boundary="------------010907090104040508040404"
    // 
    // 	--------------010907090104040508040404
    // 	Content-Type: text/plain
    // 	Content-Transfer-Encoding: 7bit
    // 
    // 	This is the plain text body
    // 	--------------010907090104040508040404--
    // 

    // IMPORTANT: A copy of the MIME passed in AppendPart is appended.
    // Therefore, in this case, changing ptMime does not change the text/plain sub-part in topLevelMime.
    // For example:
    ptMime.SetBody(L"this is the new plain text body.");
    // topLevelMime is unchanged.
    wprintf(L"%s\n",topLevelMime.getMime());
    wprintf(L"****\n");

    // To change the content in topLevelMime, we must get the text/plain part.
    // For example:

    CkMimeW ptMime2;
    topLevelMime.PartAt(0,ptMime2);

    ptMime2.SetBody(L"this is the new plain text body.");
    // Now topLevelMime is changed.
    wprintf(L"%s\n",topLevelMime.getMime());
    }