#includeThis code creates a QDomDocument and adds a processing instruction to the document with the target "xml" and data "version=\"1.0\"". The package library for this code is QtXml.int main() { QDomDocument document; QDomProcessingInstruction processingInstruction = document.createProcessingInstruction("xml", "version=\"1.0\""); document.appendChild(processingInstruction); return 0; }