moved some common computations into helper functions. All that to
facilitate the implementation of the forthcoming theming support.

already done in shelllink.c.

theming) of standard controls.

directly instead.

Q transform must be used instead.

anything useful.

any objects referenced by the internal stateblock are released when
the stateblock is released (we don't reference count while a
stateblock is recording, so recorded stateblocks have no references to
clean up).

duplicate typedefs.

Improve error handling for the search functions.

resources and provides extra sanity checks.

whole document.

with snd_pcm_drain which is more likely to do what the original author
intended.

false errors on some systems.