query package:alsa-seq

query :: T mode -> T -> Type -> Word -> IO (Maybe T)
alsa-seq Sound.ALSA.Sequencer.Subscribe.Query
Queries a subscriber connected to (Write) or from (Read) a given address: query seq addr typ index
module Sound.ALSA.Sequencer.Query
alsa-seq
module Sound.ALSA.Sequencer.Subscribe.Query
alsa-seq
This module contains functions for working with subscriptions. Reference: http://www.alsa-project.org/alsa-doc/alsa-lib/group___seq_subscribe.html
queryFirst :: T mode -> IO T
alsa-seq Sound.ALSA.Sequencer.Client.Info
queryLoop :: T mode -> (T -> IO a) -> IO [a]
alsa-seq Sound.ALSA.Sequencer.Client.Info
queryLoop_ :: T mode -> (T -> IO ()) -> IO ()
alsa-seq Sound.ALSA.Sequencer.Client.Info
queryNext :: T mode -> T -> IO Bool
alsa-seq Sound.ALSA.Sequencer.Client.Info
Get information about the client with the next biggest identifier.
queryFirst :: T mode -> IO T
alsa-seq Sound.ALSA.Sequencer.Port.Info
Get information about the first port on our client.
queryLoop :: T mode -> T -> (T -> IO a) -> IO [a]
alsa-seq Sound.ALSA.Sequencer.Port.Info
queryLoop_ :: T mode -> T -> (T -> IO ()) -> IO ()
alsa-seq Sound.ALSA.Sequencer.Port.Info
queryNext :: T mode -> T -> IO Bool
alsa-seq Sound.ALSA.Sequencer.Port.Info
Get information about the port with the next biggest identifier. If a matching port is found, then its information is stored in the given area and True is returned.
queryAll :: T mode -> T -> Type -> IO [T]
alsa-seq Sound.ALSA.Sequencer.Subscribe.Query
Queries the list of subscribers accessing a port