Gui: For Qt 6.5 and later, use ParseOptions in xml

src/Gui/CommandView.cpp

@@ -480,6 +480,15 @@ void StdCmdFreezeViews::onRestoreViews()
     }
 
     QDomDocument xmlDocument;
+
+#if QT_VERSION >= QT_VERSION_CHECK(6,5,0)
+    if (const auto result = xmlDocument.setContent(&file, QDomDocument::ParseOption::UseNamespaceProcessing); !result) {
+        std::cerr << "Parse error in XML content at line " << result.errorLine
+                  << ", column " << result.errorColumn << ": "
+                  << qPrintable(result.errorMessage) << std::endl;
+        return;
+    }
+#else
     QString errorStr;
     int errorLine;
     int errorColumn;
@@ -491,6 +500,7 @@ void StdCmdFreezeViews::onRestoreViews()
                   << (const char*)errorStr.toLatin1() << std::endl;
         return;
     }
+#endif
 
     // get the root element
     QDomElement root = xmlDocument.documentElement();

src/Gui/DocumentRecovery.cpp

@@ -469,6 +469,11 @@ DocumentRecoveryPrivate::XmlConfig DocumentRecoveryPrivate::readXmlFile(const QS
     if (!file.open(QFile::ReadOnly))
         return cfg;
 
+#if QT_VERSION >= QT_VERSION_CHECK(6,5,0)
+    if (!domDocument.setContent(&file, QDomDocument::ParseOption::UseNamespaceProcessing)) {
+        return cfg;
+    }
+#else
     QString errorStr;
     int errorLine;
     int errorColumn;
@@ -477,6 +482,7 @@ DocumentRecoveryPrivate::XmlConfig DocumentRecoveryPrivate::readXmlFile(const QS
                                 &errorColumn)) {
         return cfg;
     }
+#endif
 
     QDomElement root = domDocument.documentElement();
     if (root.tagName() != QLatin1String("AutoRecovery")) {