82 lines
1.7 KiB
C
82 lines
1.7 KiB
C
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//
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// waves.h
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//
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#ifndef _WAVES_H_
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#define _WAVES_H_
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#include <mmsystem.h>
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#define NUM_TONES 21
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#define NUM_WAVES 22
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//////////////////////////////////////////////////////////////////////////////
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//
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// class CWavePlayer
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//
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// Implements tone player for a single phone device.
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//
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class CWavePlayer
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{
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public:
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DECLARE_TRACELOG_CLASS(CWavePlayer)
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CWavePlayer();
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~CWavePlayer();
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HRESULT Initialize(void);
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HRESULT OpenMixerDevice(long lWaveId);
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void CloseMixerDevice(void);
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HRESULT OpenWaveDeviceForTone(long lWaveId);
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HRESULT OpenWaveDeviceForRing(long lWaveId);
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void CloseWaveDeviceForTone(void);
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void CloseWaveDeviceForRing(void);
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BOOL IsInitialized(void) { return m_fInitialized; }
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BOOL IsInUse(void) { return ((m_hWaveOutTone != NULL) || (m_hWaveOutRing != NULL) || (m_hMixer != NULL)); }
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HRESULT StartTone(long lTone);
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HRESULT StartRing();
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HRESULT StopTone(long lTone);
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HRESULT StopRing(void);
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BOOL PlayingTone(long lTone);
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HRESULT SetVolume( DWORD dwVolume );
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HRESULT GetVolume( DWORD * pdwVolume );
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private:
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HRESULT ChangeTone();
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// TRUE if Initialize has succeeded.
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BOOL m_fInitialized;
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// Handle to the wave out device. NULL when the device is not open.
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HWAVEOUT m_hWaveOutTone;
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HWAVEOUT m_hWaveOutRing;
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HMIXER m_hMixer;
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MIXERCONTROL m_mxctrl;
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// Wave headers
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WAVEHDR m_WaveHeaderTone;
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WAVEHDR m_WaveHeaderRing;
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// Buffers for the tones
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LPBYTE m_lpWaveform[ NUM_WAVES ];
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DWORD m_dwWaveformSize[ NUM_WAVES ];
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BOOL m_fPlaying[ NUM_TONES ];
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LONG m_lCurrentTone;
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};
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#endif // _WAVES_H_
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