Draws a subset of a loaded SVG handle to a Cairo context. Drawing will occur with
respect to the cr's current transformation: for example, if the cr has a
rotated current transformation matrix, the whole SVG will be rotated in the
rendered version.
An element's id within the SVG, or NULL to render
the whole SVG. For example, if you have a layer called "layer1"
that you wish to render, pass "#layer1" as the id.
Draws a subset of a loaded SVG handle to a Cairo context. Drawing will occur with respect to the cr's current transformation: for example, if the cr has a rotated current transformation matrix, the whole SVG will be rotated in the rendered version.