volumedlg.h

实效编程百例,包含了用vc开发的各方面的源代码。

// VolumeDlg.h : header file
//

#if !defined(AFX_VOLUMEDLG_H__0C59A3A7_7964_11D6_8F32_00E04CE76240__INCLUDED_)
#define AFX_VOLUMEDLG_H__0C59A3A7_7964_11D6_8F32_00E04CE76240__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

/////////////////////////////////////////////////////////////////////////////
// CVolumeDlg dialog

class CVolumeDlg : public CDialog
{
// Construction
public:
	CVolumeDlg(CWnd* pParent = NULL);	// standard constructor

// Dialog Data
	//{{AFX_DATA(CVolumeDlg)
	enum { IDD = IDD_VOLUME_DIALOG };
	CSliderCtrl	m_ctrlSlider;
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CVolumeDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);	// DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	HICON m_hIcon;

	// Generated message map functions
	//{{AFX_MSG(CVolumeDlg)
	virtual BOOL OnInitDialog();
	afx_msg void OnSysCommand(UINT nID, LPARAM lParam);
	afx_msg void OnPaint();
	afx_msg HCURSOR OnQueryDragIcon();
	afx_msg void OnDestroy();
	afx_msg void OnHScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar);
	afx_msg LONG OnMixerCtrlChange(UINT wParam, LONG lParam);
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
private:
	UINT m_nNumMixers;									//混合器的数量
	HMIXER m_hMixer;									//当前混合器的句柄
	MIXERCAPS m_mxcaps;									//当前混合器的性能参数

	CString m_strDstLineName, m_strVolumeControlName;	//混合器控件的名称
	DWORD m_dwMinimum, m_dwMaximum;						//最大，最小的音量值
	DWORD m_dwVolumeControlID;							//混合器控件的ID

	BOOL amdUninitialize();
	BOOL amdInitialize();
	BOOL amdGetMasterVolumeControl();
	BOOL amdGetMasterVolumeValue(DWORD &dwVal) const;
	BOOL amdSetMasterVolumeValue(DWORD dwVal) const;
};

//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_VOLUMEDLG_H__0C59A3A7_7964_11D6_8F32_00E04CE76240__INCLUDED_)