How to add <?xml version = '1.0'?> to the beginning of a QDomDocument?

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Answer:

<?xml version = '1.0'?> is added by creating a processing instruction as the first child of the document:

	QDomDocument doc;
	doc.appendChild(doc.createProcessingInstruction("xml version =", "'1.0'"));
	doc.appendChild(doc.createElement("hi"));