Re: [madplay]:audio_win32.c::struct buffer.event_handle: Can not find the time that sets the event object to the signaled state
Rob Leslie <[email protected]> Fri, 19 Aug 2005 11:39:24 -0700
| Newsgroups | gmane.comp.audio.mad.devel |
|---|---|
| Message-ID | <[email protected]> |
On Aug 18, 2005, at 10:26 PM, cnmmd wrote:
> why the event_handle is signaled state?
>
> I only find this time to setevent:
> void CALLBACK callback(HWAVEOUT handle, UINT message, DWORD data,
> DWORD param1, DWORD param2)
> {
> WAVEHDR *header;
> struct buffer *buffer;
>
> switch (message) {
> case WOM_DONE:
> header = (WAVEHDR *) param1;
> buffer = (struct buffer *) header->dwUser;
> if (SetEvent(buffer->event_handle) == 0) {
>
> ...
> }
That's it. This callback routine is passed to waveOutOpen(), which
allows it to be called asynchronously after each data block sent via
waveOutWrite() has finished playing.
--
Rob Leslie
[email protected]