void gsk_render_node_draw ( GskRenderNode* node, cairo_t* cr )
Draw the contents of
node to the given cairo context.
Typically, you’ll use this function to implement fallback rendering
GskRenderNodes on an intermediate Cairo context, instead of using
the drawing context associated to a
GdkSurface‘s rendering buffer.
For advanced nodes that cannot be supported using Cairo, in particular for nodes doing 3D operations, this function may fail.