Sound.ALSA.Sequencer.Queue

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

General Queue Functions

data T

The type of queue identifiers.

Instances

Eq T

Ord T

Show T

Storable T

direct :: T

alloc

Arguments

:: T mode

-> IO T

Queue.T identifier.

allocNamed :: T mode -> String -> IO T

free

Arguments

:: T mode

Sequencer handle.

-> T

Queue.T identifier.

-> IO ()

Delete the specified queue.

with :: T mode -> (T -> IO a) -> IO a

withNamed :: T mode -> String -> (T -> IO a) -> IO a

control

Arguments

:: T mode

Sequencer handle.

-> T

target Queue.T.

-> QueueEv

-> Maybe T

prototype event that may provide timestamp, source queue

-> IO ()

startstopcontinue a queue

In the prototype event you can provide additional information. The prototype event does not need to be a queue control event, this part is ignored anyway. In the prototype event you may also specify a queue. This is the queue that the timestamp of the prototype event refers to. This way you can control the target queue using timing from another queue.