I created a QSvgRenderer and checked with QSvgRenderer::isValid, but now how can i pass that to say an existing QWidget placed with designer ?

The doc says: Once you have loaded the SVG file successfully, you can render it with the QSvgRenderer::render function. Note that this scheme allows you to render SVG files on all paint devices supported by Qt, including QWidget

But i can't pass a QWidget to QSvgRenderer::render, i get an error: no matching function for call to 'QSvgRenderer::render(QWidget*&)'