71 lines
1.5 KiB
C
71 lines
1.5 KiB
C
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// File: mixer.h
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#ifndef _MIXER_H_
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#define _MIXER_H_
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typedef struct tagMixLine
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{
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UINT ucChannels;
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BOOL fIdValid;
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DWORD dwControlId;
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DWORD dwLineId; // line ID of destination
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DWORD dwCompType; // Component type
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DWORD dwConnections; // number of sources associated with this line
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} MIXLINE;
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class CMixerDevice : public IMixer
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{
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private:
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HMIXER m_hMixer;
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MIXERCAPS m_mixerCaps;
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MIXLINE m_DstLine;
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MIXLINE m_SrcLine;
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BOOL Init( HWND hWnd, UINT_PTR uWaveDevId, DWORD dwFlags);
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LONG m_lRefCount;
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protected:
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CMixerDevice() : m_lRefCount(0)
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{
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m_hMixer = NULL;
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ZeroMemory (&m_DstLine, sizeof(m_DstLine));
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ZeroMemory (&m_SrcLine, sizeof(m_SrcLine));
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}
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public:
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~CMixerDevice()
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{
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if (NULL != m_hMixer)
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{
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mixerClose(m_hMixer);
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}
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}
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BOOL __stdcall SetVolume (DWORD dwVolume)
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{
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BOOL fSetMain = SetMainVolume(dwVolume);
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BOOL fSetSub = SetSubVolume(dwVolume);
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return fSetMain || fSetSub;
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}
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BOOL __stdcall CanSetVolume () { return m_DstLine.fIdValid || m_SrcLine.fIdValid; }
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BOOL __stdcall SetMainVolume(DWORD dwVolume);
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BOOL __stdcall SetSubVolume(DWORD dwVolume);
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BOOL __stdcall SetAGC(BOOL fOn);
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BOOL __stdcall GetMainVolume(LPDWORD pdwVolume);
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BOOL __stdcall GetSubVolume(LPDWORD pdwVolume);
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BOOL __stdcall GetAGC(BOOL *pfOn);
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BOOL __stdcall EnableMicrophone();
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BOOL __stdcall UnMuteVolume();
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static CMixerDevice* GetMixerForWaveDevice( HWND hWnd, UINT uWaveDevId, DWORD dwFlags);
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// IUnknown
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HRESULT __stdcall QueryInterface(const IID&, void**);
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ULONG __stdcall AddRef();
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ULONG __stdcall Release();
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};
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#endif
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