[directmusic] Why can't I get MIXIN_BUFFER interfaces?
- From: "Andrew Clark" <andrewclarkis@xxxxxxxxxxx>
- To: directmusic@xxxxxxxxxxxxx
- Date: Fri, 27 Sep 2002 15:53:09 -0400
Hey gang! Another DX8.1 API question for the c++ gurus.
I don't seem to be able to get MIXIN_BUFFER interfaces with
pAudiopath->GetObjectInPath(). Here is the audiopath I'm trying to use:
Audiopath Designer:
Mix Group Bus Buffer Effects List
Shared Verb---- None User Defined (shared) I3DL2Reverb2
Shared Echo---- None User Defined (shared) Echo1 | Send(Shared Verb)
1: Mix Group--- Stereo User Defined Custom DMO | Send (Shared Verb)
| Send
(Shared Echo)
I can get an interface to my custom DMO no problem with
GetObjectInPath(DMUS_PATH_BUFFER_DMO), but try as I might I can't get an
interface to the Echo1 DMO with DMUS_PATH_MIXIN_BUFFER_DMO. As a matter of
fact, I can't even get an IDirectSoundBUffer interface with
DMUS_PATH_MIXIN_BUFFER.
Does anyone have any idea what might be going on? (Is it because I have the
buffer flagged as shared between audiopaths?)
Cheers,
Andrew
--------------------------------------------------------
sample code that doesn't work:
IDirectSoundBuffer* pBuff = NULL;
if(SUCCEEDED(hr = pAudioPath->GetObjectInPath(DMUS_PCHANNEL_ALL,
DMUS_PATH_MIXIN_BUFFER, i,
GUID_NULL, 0, IID_IDirectSoundBuffer,
(LPVOID*) &pBuff)))
{
Log("For some reason this never happens.");
}
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