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