Visual FoxPro

Insert PDF as Base64 into XML, then Extract back to PDF File

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Demonstrates how to insert any file into XML using base64 encoding, and then extract back to the original file. This example embeds a PDF in the XML, but the type of file does not matter. It can be any type of file. Visual FoxPro

LOCAL lnSuccess
LOCAL loBd
LOCAL loXml
LOCAL loBd2

lnSuccess = 0

* Load our PDF file.
loBd = CreateObject('Chilkat.BinData')
lnSuccess = loBd.LoadFile("qa_data/helloWorld.pdf")
IF (lnSuccess <> 1) THEN
    ? "Failed to load PDF file."
    RELEASE loBd
    CANCEL
ENDIF

* Load the following XML:
* 
* <?xml version="1.0" encoding="utf-8" ?>
* <something>
*     <xyz>
*         <abc123>A base64 encoded PDF file will be inserted under this node.</abc123>
*     </xyz>
* </something>

loXml = CreateObject('Chilkat.Xml')
lnSuccess = loXml.LoadXmlFile("qa_data/xml/xmlToContainPdf.xml")
IF (lnSuccess <> 1) THEN
    ? "Failed to load XML file."
    RELEASE loBd
    RELEASE loXml
    CANCEL
ENDIF

* Insert the PDF into the XML.
loXml.NewChild2("xyz|pdfData",loBd.GetEncoded("base64"))

* Show the new XML:
? loXml.GetXml()

* The XML now looks like this:
* <?xml version="1.0" encoding="utf-8" ?>
* <something>
*     <xyz>
*         <abc123>A base64 encoded PDF file will be inserted under this node.</abc123>
*         <pdfData>JVBERi0xL ... UlRU9GCg==</pdfData>
*     </xyz>
* </something>

* To extract the PDF data out and restore the PDF file:
loBd2 = CreateObject('Chilkat.BinData')
lnSuccess = loBd2.AppendEncoded(loXml.GetChildContent("xyz|pdfData"),"base64")
lnSuccess = loBd2.WriteFile("qa_output/helloWorld.pdf")

? "Success."

RELEASE loBd
RELEASE loXml
RELEASE loBd2