from the GL or GLES implementation, plus the eventual backend-specific
features.
+ ClutterBackend::get_display_size
+ -- Use this function to retrieve the size of the display.
+
ClutterBackend::ensure_context
-- This function is used to ensure that the backend drawing context
is made current for passed ClutterStage, using the backend-specific
- create a new native window handle
- if the backend doesn't have a drawing context (either GL or GLES),
- create one and assing it to the backend
+ create one and pass it to the backend
- set the CLUTTER_ACTOR_REALIZED flag on itself
In case of failure, the CLUTTER_ACTOR_REALIZED flag should be unset on