Unicode C

Get a Structure Property Value from XMP

See more XMP Examples

Demonstrates how to open a JPG or TIF image file, access the XMP metadata, and fetch the value of a structure property, such as the Iptc4xmpCore:CiTelWork (found within the Iptc4xmpCore:CreatorContactInfo structure). Unicode C

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

void ChilkatSample(void)
    {
    BOOL success;
    HCkXmpW xmp;
    HCkXmlW xml;
    const wchar_t *propVal;

    success = FALSE;

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

    xmp = CkXmpW_Create();

    // Load a JPG or TIF image file.
    // Sample JPG's with XMP metadata may be found at:
    // http://www.chilkatsoft.com/testData/xmp/sample1.jpg
    // http://www.chilkatsoft.com/testData/xmp/sample2.jpg
    // http://www.chilkatsoft.com/testData/xmp/sample3.jpg
    success = CkXmpW_LoadAppFile(xmp,L"sample1.jpg");
    if (success != TRUE) {
        wprintf(L"%s\n",CkXmpW_lastErrorText(xmp));
        CkXmpW_Dispose(xmp);
        return;
    }

    wprintf(L"Num embedded XMP docs: %d\n",CkXmpW_getNumEmbedded(xmp));

    // Assuming there is at least one, get the 1st.
    // (There is typically never more than one, but theoretically it's possible.)
    xml = CkXmpW_GetEmbedded(xmp,0);
    if (CkXmpW_getLastMethodSuccess(xmp) == TRUE) {

        propVal = CkXmpW_getStructValue(xmp,xml,L"Iptc4xmpCore:CreatorContactInfo",L"Iptc4xmpCore:CiTelWork");
        if (CkXmpW_getLastMethodSuccess(xmp) != TRUE) {
            wprintf(L"Not found.\n");
        }
        else {
            wprintf(L"%s\n",propVal);
        }

        CkXmlW_Dispose(xml);

    }
    else {
        wprintf(L"%s\n",CkXmpW_lastErrorText(xmp));
    }



    CkXmpW_Dispose(xmp);

    }