[wdmaudiodev] Re: waveOutSetVolume() under Vista returns MMSYSERR_NOTSUPPORTED
- From: "Sam Tertzakian" <sam@xxxxxxxxxxx>
- To: <wdmaudiodev@xxxxxxxxxxxxx>
- Date: Thu, 9 Mar 2006 12:31:11 -0800
Hi,
I have a device with a volume control. And I wrote a driver and service for
the device. (The service is necessary to fulfill some of the requirements.)
Now, when the user changes the volume on the device, the service actually
ends up getting the volume setting on the device (not the driver). What we
want is for the service to change the volume in a way that the Hardware
Volume slider in the Windows UI changes to match the volume on the device.
(This should be a Device volume, not a per-Stream Volume).
Right now, the service is changing the volume in the driver by communicating
directly with the driver.That works. (But, the Volume Slider in the UI does
not change. That is the main problem.)
The driver exports KsMethods to allow the Service to change the volume in
the Driver.but the UI does not seem to adjust the volume slider.
Perhaps the problem is that somehow the driver is not exporting the volume
control in a way that the slider changes.
_____
From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Frank Yerrace
Sent: Thursday, March 09, 2006 5:11 AM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Re: waveOutSetVolume() under Vista returns
MMSYSERR_NOTSUPPORTED
I'm sorry it's still not entirely clear to me what your scenario is. Does
your solution have some physical buttons, and are you trying to write a
sort-of daemon that responds to those buttons by changing the main volume
level? Are you writing a program that has a GUI with a volume slider, and
you want that slider to affect the main volume level? Are you writing a
control panel extension for Vista's Audio control panel?
As Larry said, the wave and mixer APIs on Vista now affect only the calling
application rather than the main volume level. In general we feel that there
is rarely a need for software to affect the main volume level. Instead, it
is directly an end user function. If we can understand your larger scenario
hopefully we can give you better guidance on how to achieve what you want to
do.
Thanks!
Frank Yerrace
Technical Lead
Microsoft Corporation
This posting is provided "AS IS" with no warranties, and confers no rights.
_____
From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Sam Tertzakian
Sent: Wednesday, March 08, 2006 9:10 PM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Re: waveOutSetVolume() under Vista returns
MMSYSERR_NOTSUPPORTED
Yes, the main volume UI to uses the Hardware Volume Control (we don't see a
problem there).
For this reason, we are trying to access the Hardware Volume Control. That
is why we are trying use either Wave or Mixer APIs to access the Hardware
Volume Control. But, it seems that we cannot access that control under Vista
(only XP) using Mixer or Wave APIs.
_____
From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Frank Yerrace
Sent: Wednesday, March 08, 2006 6:27 PM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Re: waveOutSetVolume() under Vista returns
MMSYSERR_NOTSUPPORTED
Which user control are you talking about? The main volume UI in Vista will
already use your hardware volume control (unless there's a bug in the way
somewhere).
Frank Yerrace
Technical Lead
Microsoft Corporation
This posting is provided "AS IS" with no warranties, and confers no rights.
_____
From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Sam Tertzakian
Sent: Wednesday, March 08, 2006 6:24 PM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Re: waveOutSetVolume() under Vista returns
MMSYSERR_NOTSUPPORTED
My device has a volume control on it. When the user moves the control up and
down, we need the volume slider on the "Master Volume" to move up and down.
How do you think I should do this?
I have not tried the Mixer API on the Feb CTP, so I don't' know if it
works.but, I did try waveOutSetVolume().and for my driver (and for the
on-board audio device for which I did not write a driver) it seems to not
work. (But it does work under XP.)
_____
From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Larry Osterman
Sent: Wednesday, March 08, 2006 5:57 PM
To: 'wdmaudiodev@xxxxxxxxxxxxx'
Subject: [wdmaudiodev] Re: waveOutSetVolume() under Vista returns
MMSYSERR_NOTSUPPORTED
Both waveOutSetVolume and the mixer APIs should be working on any recent
builds (with the caveat that Frank mentioned below: waveOutSetVolume using
IDs didn't work in all cases until recently).
If you attempt to set the capture volume using the mixer APIs, it won't work
(the API call should succeed, but the call will be ignored), the bug fix for
this didn't make the Feb CTP.
Please note that the wave and mixer volumes are plumbed to the per-stream
volume for render endpoints.
Larry Osterman
_____
From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Sam Tertzakian
Sent: Wednesday, March 08, 2006 5:42 PM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Re: waveOutSetVolume() under Vista returns
MMSYSERR_NOTSUPPORTED
I have tried both handles and ids..But, I just realized that I am testing
the Mixer API implementation on build 5270 and not the latest build. I know
that both wave handles and device ids fail under the later version of Vista.
But, I am not sure about the mixer api under the lastest version of Vista.
I'll try it.
_____
From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Frank Yerrace
Sent: Wednesday, March 08, 2006 5:33 PM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Re: waveOutSetVolume() under Vista returns
MMSYSERR_NOTSUPPORTED
Are you using wave handles or wave IDs? Both will eventually work, but wave
IDs were not working until recent builds of Vista. You might not have a
build with this correction. I don't have the information at my fingertips
regarding when this was corrected.
Frank Yerrace
Technical Lead
Microsoft Corporation
This posting is provided "AS IS" with no warranties, and confers no rights.
_____
From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Sam Tertzakian
Sent: Wednesday, March 08, 2006 5:08 PM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Re: waveOutSetVolume() under Vista returns
MMSYSERR_NOTSUPPORTED
Hi,
I wrote a bunch of code to set/get the volume using the Mixer API and it
works under XP with my driver.but the same code with same driver does not
work under Vista.
So, I cannot set the volume using the Wave API or the Mixer API under Vista.
Yet, when I change the volume using the control panel under Vista, the
messages do get to my driver.
_____
From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Sam Tertzakian
Sent: Wednesday, March 08, 2006 3:00 PM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Re: waveOutSetVolume() under Vista returns
MMSYSERR_NOTSUPPORTED
Hi,
I wrote an audio driver that works under XP and Vista. It passes XP WHQL.
Under XP, when I call waveOutSetVolume() and waveOutGetVolume() everything
works. But, under Vista both those functions return MMSYSERR_NOT_SUPPORTED.
Does anybody know why this would be? Is that API not supported anymore? Do I
have to do something different in my driver under Vista to make this call
work?
Under Vista the driver works very well.for example, when I change the volume
using MSN messenger that works. It is just the waveXxxGetVolume and
waveXxxSetVolume calls that fail.
_____
From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Sam Tertzakian
Sent: Tuesday, March 07, 2006 9:37 AM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] waveOutSetVolume() under Vista returns
MMSYSERR_NOTSUPPORTED
Hi,
I am receving MMSYSERR_NOTSUPPORTED when I call waveOutSetVolume() under
Vista (latest CTP version). Under XP, the same code returns no error.
Is this API no longer supported under Vista?
Is there a new API for controlling the volume, or do we have to use the
MixerAPI?
Thank you
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