[wdmaudiodev] Re: sample User mode installable multimedia driver
- From: Larry Osterman <Larry.Osterman@xxxxxxxxxxxxx>
- To: "wdmaudiodev@xxxxxxxxxxxxx" <wdmaudiodev@xxxxxxxxxxxxx>
- Date: Mon, 23 Mar 2009 16:29:34 +0000
You do of course realize that XP will be unsupported by MSFT in about 5 years,
right? You should seriously consider supporting Vista and beyond because you
artificially limit your customer base by only supporting old operating systems.
From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Vipin Kumar
Sent: Wednesday, March 18, 2009 2:07 AM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Re: sample User mode installable multimedia driver
i just want to capture/feed the playback/capture(mic) data per application
basis and i don't need mixing to get in my way.
i am targeting any NT based OS ( till Vista. Vista is not supported)
but the wodmessage model is in use till XP SP3, so i can use it, but the
documentation /samples seem to be scarce. the wdmaud.drv executable is based on
this model.
Anyways, if you can let me know how the kmixer would create n no. of streams( n
different media players playing songs), without mixing any of them for a WDM
driver based of MSVAD multstr, i would be happy
Anyways, the issue i raised earlier in this thread, has been solved.
Thanks for everyone to help me out.
Regards,
Vipin
On Wed, Mar 18, 2009 at 2:16 PM, Frank Yerrace
<Frank.Yerrace@xxxxxxxxxxxxx<mailto:Frank.Yerrace@xxxxxxxxxxxxx>> wrote:
The wodMessage driver model is generally not well supported on any of the
recent releases of desktop Windows. You should consider the WDM Audio driver
model. See http://msdn.microsoft.com/en-us/library/bb870472.aspx.
Is there a particular reason you need to implement a user-mode driver of this
type? What version of Windows are you targeting?
Frank Yerrace
Microsoft
This posting is provided "AS IS" with no warranties, and confers no rights.
From: wdmaudiodev-bounce@xxxxxxxxxxxxx<mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx>
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx<mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx>]
On Behalf Of Vipin Kumar
Sent: Tuesday, March 17, 2009 10:53 PM
To: wdmaudiodev@xxxxxxxxxxxxx<mailto:wdmaudiodev@xxxxxxxxxxxxx>
Subject: [wdmaudiodev] sample User mode installable multimedia driver
Hi,
i am trying to write a user mode installable multimedia driver ( basically
i want to implement the wodMessage ).please visit
http://msdn.microsoft.com/en-us/library/ms713504(VS.85).aspx<http://msdn.microsoft.com/en-us/library/ms713504%28VS.85%29.aspx>
i can see my device in the list, however, when someone tries to open the
device, i receive a callback argument with value 0, which is not valid
so no one is able to open the device( AFAIK the device will open only when the
callback is sent, but since it's a value of zero, it's of no use )
can someone help me out here.
i am also trying to search a sample but in vain. Can someone please point me
out to the sample or what am i doing wrong or how should i do it.
waiting for your help
--
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Thanks & Regards
=================
Vipin.
--
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Thanks & Regards
=================
Vipin.
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