76 lines
1.6 KiB
C++
76 lines
1.6 KiB
C++
// File: mixer.h
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#ifndef _MIXER_H_
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#define _MIXER_H_
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typedef struct tagMixLVolume
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{
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DWORD leftVolume;
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DWORD rightVolume;
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}MIXVOLUME;
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void NewMixVolume(MIXVOLUME* lpMixVolDest, const MIXVOLUME& mixVolSource, DWORD dwNewVolume);
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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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DWORD dwControls; // number of sub controls (such as AGC) associated with this line
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BOOL fAgcAvailable;
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DWORD dwAGCID;
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} MIXLINE;
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class CMixerDevice
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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 uWaveDevId, DWORD dwFlags);
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BOOL DetectAGC();
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protected:
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CMixerDevice()
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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 SetVolume (MIXVOLUME * pdwVolume);
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BOOL CanSetVolume () { return m_DstLine.fIdValid || m_SrcLine.fIdValid; }
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BOOL SetMainVolume(MIXVOLUME * pdwVolume);
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BOOL SetSubVolume(MIXVOLUME * pdwVolume);
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BOOL SetAGC(BOOL fOn);
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BOOL GetMainVolume(MIXVOLUME * pdwVolume);
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BOOL GetSubVolume(MIXVOLUME * pdwVolume);
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BOOL GetVolume(MIXVOLUME * pdwVolume);
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BOOL GetAGC(BOOL *pfOn);
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BOOL EnableMicrophone();
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BOOL UnMuteVolume();
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static CMixerDevice* GetMixerForWaveDevice( HWND hWnd, UINT uWaveDevId, DWORD dwFlags);
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};
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#endif
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