main.cpp の Qt 5.6 の場合:
...
QString helpHTMLFile = QStandardPaths::writableLocation(QStandardPaths::TempLocation);
helpHTMLFile.append(QDir::separator());
helpHTMLFile.append("index.html");
QFile(helpHTMLFile).remove();
QFile(":/index.html").copy(helpHTMLFile);
QQmlApplicationEngine engine;
engine.rootContext()->setContextProperty("pathToFile", "file:///"+helpHTMLFile);
QString logo = QStandardPaths::writableLocation(QStandardPaths::TempLocation);
logo.append(QDir::separator());
logo.append("logo.svg");
QFile(logo).remove();
QFile(":/logo.svg").copy(logo);
...
HTMLで:
...
<img src="logo.svg" class="loginFooterImg">
...