queue_render

Marks the currently rendered data (if any) as invalid, and queues a redraw of the widget.

This ensures that the [signal@Gtk.GLArea:GtkGLArea:render] signal is emitted during the draw.

This is only needed when [method@Gtk.GLArea.set_auto_render] has been called with a false value. The default behaviour is to emit [signal@Gtk.GLArea:GtkGLArea:render] on each draw.

Parameters: