Sound.ALSA.Sequencer.Subscribe.Query

This module contains functions for working with subscriptions. Reference: http://www.alsa-project.org/alsa-doc/alsa-lib/group___seq_subscribe.html

Documentation

type T = QuerySubscribe

data Type

Constructors

Read

Write

Instances

Enum Type

Eq Type

Ord Type

Show Type

getClient :: T -> IO T

getPort :: T -> IO T

getRoot :: T -> IO T

Get the client/port address of a query

getType :: T -> IO Type

getIndex :: T -> IO Word

getNumSubs :: T -> IO Word

getAddr :: T -> IO T

Get the address of subscriber of query

getQueue :: T -> IO T

getExclusive :: T -> IO Bool

getTimeUpdate :: T -> IO Bool

getTimeReal :: T -> IO Bool

query :: T mode -> T -> Type -> Word -> IO (Maybe T)

Queries a subscriber connected to (Write) or from (Read) a given address: query seq addr typ index

queryAll :: T mode -> T -> Type -> IO [T]

Queries the list of subscribers accessing a port