From: Clemens Ladisch <clemens@ladisch.de>
To: Ru Vuott <vuott@yahoo.it>
Cc: alsa-devel@alsa-project.org
Subject: Re: Can ALSA invoke a Callback ?
Date: Sat, 27 Aug 2011 00:03:27 +0200 [thread overview]
Message-ID: <4E58182F.1090801@ladisch.de> (raw)
In-Reply-To: <1314385032.22194.YahooMailClassic@web29616.mail.ird.yahoo.com>
Ru Vuott wrote:
> Well, I 'm programming with Gambas 3.0 language. I 'm using
> a GUI.
Use snd_seq_poll_descriptors_count() and snd_seq_poll_descriptors() to
get one or more file descriptors and event masks for the sequencer
device; these file descriptors can be used to wait for events.
When you receive an event, check if the device is actually ready for
reading or writing by calling snd_seq_poll_descriptors_revents().
These functions are designed to be used with poll(); to use them with
Gambas, extract the file descriptors and their event masks from the pfds
array and call GB.Watch() with these values.
Regards,
Clemens
next parent reply other threads:[~2011-08-26 22:03 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1314385032.22194.YahooMailClassic@web29616.mail.ird.yahoo.com>
2011-08-26 22:03 ` Clemens Ladisch [this message]
[not found] <1314978948.16516.YahooMailClassic@web29618.mail.ird.yahoo.com>
2011-09-02 16:32 ` Can ALSA invoke a Callback ? Clemens Ladisch
[not found] <1314566910.38637.YahooMailClassic@web29620.mail.ird.yahoo.com>
2011-08-29 9:12 ` Clemens Ladisch
[not found] <1314369942.41651.YahooMailClassic@web29613.mail.ird.yahoo.com>
2011-08-26 15:54 ` Clemens Ladisch
2011-08-26 14:24 Ru Vuott
2011-08-26 14:34 ` Clemens Ladisch
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