(Unicode C) Add XMP MetaData to JPG or TIFF

Demonstrates how to add XMP metadata to a JPG or TIFF image that doesn't already have XMP metadata.

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#include <C_CkXmpW.h>
#include <C_CkXmlW.h>

void ChilkatSample(void)
    {
    HCkXmpW xmp;
    HCkXmlW xml;
    BOOL success;

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

    xmp = CkXmpW_Create();

    // The first step is to create a new XMP document, which is nothing
    // more than XML.  The NewXmp method returns an XML document with
    // the standard XMP boilerplate.  
    xml = CkXmpW_NewXmp(xmp);

    // Add some properties...
    success = CkXmpW_AddSimpleStr(xmp,xml,L"Iptc4xmpCore:Chilkat",L"Blah blah");
    // If you wish to view the XML, save it to a file and review it
    // with a text editor:
    success = CkXmlW_SaveXml(xml,L"newXmp.xml");
    if (success != TRUE) {
        wprintf(L"%s\n",CkXmlW_lastErrorText(xml));
        CkXmpW_Dispose(xmp);
        return;
    }

    // To add the XMP to the JPG (or TIFF), simply load the JPG,
    // append the XMP, and save:
    success = CkXmpW_LoadAppFile(xmp,L"scream.jpg");
    if (success != TRUE) {
        wprintf(L"%s\n",CkXmpW_lastErrorText(xmp));
        CkXmpW_Dispose(xmp);
        return;
    }

    success = CkXmpW_Append(xmp,xml);
    if (success != TRUE) {
        wprintf(L"%s\n",CkXmpW_lastErrorText(xmp));
        CkXmpW_Dispose(xmp);
        return;
    }

    success = CkXmpW_SaveAppFile(xmp,L"screamOut.jpg");
    if (success != TRUE) {
        wprintf(L"%s\n",CkXmpW_lastErrorText(xmp));
        CkXmpW_Dispose(xmp);
        return;
    }



    CkXmpW_Dispose(xmp);

    }