Return the ANativeWindow associated with a Java Surface object,
for interacting with it through native code. This acquires a reference
on the ANativeWindow that is returned; be sure to use ANativeWindow_release()
when done with it so that it doesn't leak.
Return the ANativeWindow associated with a Java Surface object, for interacting with it through native code. This acquires a reference on the ANativeWindow that is returned; be sure to use ANativeWindow_release() when done with it so that it doesn't leak.