(MFC) 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.

Chilkat C/C++ Library Downloads MS Visual C/C++ Libs

See Also: Using MFC CString in Chilkat

#include <CkXmp.h>
#include <CkXml.h>

void ChilkatSample(void)
    {
    CkString strOut;

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

    CkXmp xmp;

    CkXml *xml = 0;

    // 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 = xmp.NewXmp();

    // Add some properties...
    bool success = xmp.AddSimpleStr(*xml,"Iptc4xmpCore:Chilkat","Blah blah");
    // If you wish to view the XML, save it to a file and review it
    // with a text editor:
    success = xml->SaveXml("newXmp.xml");
    if (success != true) {
        strOut.append(xml->lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    // To add the XMP to the JPG (or TIFF), simply load the JPG,
    // append the XMP, and save:
    success = xmp.LoadAppFile("scream.jpg");
    if (success != true) {
        strOut.append(xmp.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    success = xmp.Append(*xml);
    if (success != true) {
        strOut.append(xmp.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    success = xmp.SaveAppFile("screamOut.jpg");
    if (success != true) {
        strOut.append(xmp.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }



    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());

    }