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68 lines
1.7 KiB
68 lines
1.7 KiB
//---------------------------------------------------------------------------
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//
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// Module: mixer.h
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//
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// Description:
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// Contains user mode mixer driver declarations.
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//
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//
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//@@BEGIN_MSINTERNAL
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// Development Team:
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// D. Baumberger
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//
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// History: Date Author Comment
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// 9/16/97 v-danba File created.
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//
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//@@END_MSINTERNAL
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//
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//---------------------------------------------------------------------------
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//
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// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
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// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
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// PURPOSE.
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//
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// Copyright (C) Microsoft Corporation, 1997 - 1998 All Rights Reserved.
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//
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//---------------------------------------------------------------------------
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#ifndef _MIXER_H_INCLUDED_
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#define _MIXER_H_INCLUDED_
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typedef struct _MIXERINSTANCE {
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struct _MIXERINSTANCE FAR* Next; // Must be first member
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HDRVR OpenDesc_hmx;
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DWORD_PTR OpenDesc_dwCallback;
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DWORD_PTR OpenDesc_dwInstance;
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DWORD OpenFlags;
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DWORD_PTR dwKernelInstance;
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ULONG firstcallbackindex;
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#ifdef UNDER_NT
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LONG referencecount;
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#endif
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#ifdef DEBUG
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DWORD dwSig; // WAMI as seen in memory.
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#endif
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WCHAR wstrDeviceInterface[1];
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} MIXERINSTANCE, FAR *LPMIXERINSTANCE;
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extern LPMIXERINSTANCE pMixerDeviceList;
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VOID
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mxdRemoveClient(
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LPMIXERINSTANCE lpInstance
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);
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MMRESULT
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IsValidMixerInstance(
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LPMIXERINSTANCE lpmi
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);
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#ifdef DEBUG
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#define ISVALIDMIXERINSTANCE(x) IsValidMixerInstance(x)
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#else
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#define ISVALIDMIXERINSTANCE(x)
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#endif
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#endif // _MIXER_H_INCLUDED_
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