Method
GskRendererrender
Declaration [src]
void
gsk_renderer_render (
GskRenderer* renderer,
GskRenderNode* root,
const cairo_region_t* region
)
Description [src]
Renders the scene graph, described by a tree of GskRenderNode instances
to the renderer’s surface, ensuring that the given region gets redrawn.
If the renderer has no associated surface, this function does nothing.
Renderers must ensure that changes of the contents given by the root
node as well as the area given by region are redrawn. They are however
free to not redraw any pixel outside of region if they can guarantee that
it didn’t change.
The renderer will acquire a reference on the GskRenderNode tree while
the rendering is in progress.
Parameters
root-
Type:
GskRenderNodeA
GskRenderNode.The data is owned by the caller of the method. region-
Type:
cairo_region_tThe
cairo_region_tthat must be redrawn orNULLfor the whole window.The argument can be NULL.The data is owned by the caller of the method.