【】MFC 全域性調節系統音量 WIN7、XP分開處理
阿新 • • 發佈：2018-12-21
#pragma once #include <stdio.h> #include <tchar.h> #include <Windows.h> #include <MMSystem.h> #include <stdlib.h> #include <commctrl.h> #include <mmdeviceapi.h> #include <endpointvolume.h> #define SAFE_RELEASE(punk) if ((punk) != NULL) { (punk)->Release(); (punk) = NULL; } typedef enum WindowsType { UnknownOS = 0, WindowsXP = 1, WindowsVista = 2, Windows7 = 3, }; #define MAX_VOL 100 class CMyVolumeCtrl { public: CMyVolumeCtrl(void); ~CMyVolumeCtrl(void); int GetMaxVol(); int GetMinVol(); int GetVolume(); BOOL SetVolume(int nVol); BOOL SetMute(BOOL bMute); BOOL GetMute(); protected: //for xp unsigned int vGetVolume(int dev); BOOL vSetVolume(long dev,long vol); BOOL vSetMute(long dev,long vol); BOOL vGetMute(long dev); BOOL vGetVolumeControl(HMIXER hmixer,long componentType,long ctrlType,MIXERCONTROL* mxc) ; long vGetMuteValue(HMIXER hmixer ,MIXERCONTROL *mxc) ; unsigned int vGetVolumeValue(HMIXER hmixer ,MIXERCONTROL *mxc) ; BOOL vSetMuteValue(HMIXER hmixer ,MIXERCONTROL *mxc, BOOL mute) ; BOOL vSetVolumeValue(HMIXER hmixer ,MIXERCONTROL *mxc, long volume) ; protected: //for vista and win7 BOOL vInitEndPoint(); BOOL vMuteSet(BOOL bMute); BOOL vMuteGet(); BOOL vVolumeSet(DWORD dwVolume); BOOL vVolumeGet(DWORD* pdwVolume); BOOL vUninitEndPoint(); protected: WindowsType vGetWindowsType(); protected: WindowsType m_eWinType; IAudioEndpointVolume *m_pEndptVolCtrl; IMMDeviceEnumerator *m_pEnumerator; IMMDevice *m_pDevice; GUID m_guidMyContext; };
以上為.h檔案中程式碼。
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