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#include <alsa/asoundlib.h>
void dump_event_filter(snd_seq_client_info_t *client_info) {
int i, b;
for (i = 0; i <= 255;) {
b = snd_seq_client_info_event_filter_check(client_info, i);
i++;
printf("%c%s%s", (b ? 'X' : '.'),
(i % 8 == 0 ? " " : ""),
(i % 32 == 0 ? "\n" : ""));
}
printf("\n");
}
int main(void) {
snd_seq_client_info_t *client_info;
snd_seq_client_info_alloca(&client_info);
printf("first client_info_event_filter :\n");
dump_event_filter(client_info);
snd_seq_client_info_event_filter_add(client_info, SND_SEQ_EVENT_NOTEON);
printf("after snd_seq_client_info_event_filter_add(client_info, SND_SEQ_EVENT_NOTEON);\n");
dump_event_filter(client_info);
snd_seq_client_info_event_filter_add(client_info, SND_SEQ_EVENT_PGMCHANGE);
printf("after snd_seq_client_info_event_filter_add(client_info, SND_SEQ_EVENT_PGMCHANGE);\n");
dump_event_filter(client_info);
snd_seq_client_info_event_filter_del(client_info, SND_SEQ_EVENT_NOTEON);
printf("after snd_seq_client_info_event_filter_del(client_info, SND_SEQ_EVENT_NOTEON);\n");
dump_event_filter(client_info);
snd_seq_client_info_event_filter_clear(client_info);
printf("after snd_seq_client_info_event_filter_clear(client_info);\n");
dump_event_filter(client_info);
snd_seq_client_info_event_filter_add(client_info, SND_SEQ_EVENT_NOTEON);
printf("after snd_seq_client_info_event_filter_add(client_info, SND_SEQ_EVENT_NOTEON);\n");
dump_event_filter(client_info);
return 0;
}
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