【VC开源代码栏目提醒】:网学会员在VC开源代码频道为大家收集整理了ControlSoundDlg.cpp提供大家参考,希望对大家有所帮助!
// ControlSoundDlg.cpp : implementation file
//
#include "stdafx.h"
#include "ControlSound.h"
#include "ControlSoundDlg.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About
class CAboutDlg : public CDialog
{
public:
CAboutDlg();
// Dialog Data
//{{AFX_DATA(CAboutDlg)
enum { IDD = IDD_ABOUTBOX };
//}}AFX_DATA
// ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(CAboutDlg)
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support
//}}AFX_VIRTUAL
// Implementation
protected:
//{{AFX_MSG(CAboutDlg)
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
};
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
//{{AFX_DATA_INIT(CAboutDlg)
//}}AFX_DATA_INIT
}
void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CAboutDlg)
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
//{{AFX_MSG_MAP(CAboutDlg)
// No message handlers
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CControlSoundDlg dialog
CControlSoundDlg::CControlSoundDlg(CWnd* pParent /*=NULL*/)
: CDialog(CControlSoundDlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CControlSoundDlg)
// NOTE: the ClassWizard will add member initialization here
//}}AFX_DATA_INIT
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CControlSoundDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CControlSoundDlg)
DDX_Control(pDX, IDC_CONTROL, m_control);
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CControlSoundDlg, CDialog)
//{{AFX_MSG_MAP(CControlSoundDlg)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_MESSAGE(MM_MIXM_CONTROL_CHANGE,OnMixerCtrlChange)
ON_WM_HSCROLL()
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CControlSoundDlg message handlers
BOOL CControlSoundDlg::OnInitDialog()
{
CDialog::OnInitDialog();
// Add "About..." menu item to system menu.
// IDM_ABOUTBOX must be in the system command range.
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
ASSERT(IDM_ABOUTBOX < 0xF000);
CMenu* pSysMenu = GetSystemMenu(FALSE);
if (pSysMenu != NULL)
{
CString strAboutMenu;
strAboutMenu.LoadString(IDS_ABOUTBOX);
if (!strAboutMenu.IsEmpty())
{
pSysMenu->AppendMenu(MF_SEPARATOR);
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
}
}
// Set the icon for this dialog. The framework does this automatically
// when the application's main window is not a dialog
SetIcon(m_hIcon, TRUE); // Set big icon
SetIcon(m_hIcon, FALSE); // Set small icon
MIXERLINE mxl;
MIXERCONTROL mxc;
MIXERLINECONTROLS mxlc;
mixerOpen(&m_hMixer,0,(DWORD)this->GetSafeHwnd(),
NULL,MIXER_OBJECTF_MIXER | CALLBACK_WINDOW);
mixerGetDevCaps((UINT)m_hMixer, &m_mxcaps, sizeof(MIXERCAPS));
mxl.cbStruct = sizeof(MIXERLINE);
mxl.dwComponentType =MIXERLINE_COMPONENTTYPE_DST_SPEAKERS;
mixerGetLineInfo((HMIXEROBJ)m_hMixer,&mxl,
MIXER_OBJECTF_HMIXER|MIXER_GETLINEINFOF_COMPONENTTYPE);
mxlc.cbStruct=sizeof(MIXERLINECONTROLS);
mxlc.dwLineID=mxl.dwLineID;
mxlc.dwControlType=MIXERCONTROL_CONTROLTYPE_VOLUME;
mxlc.cControls=1;//一般为1
mxlc.cbmxctrl=sizeof(MIXERCONTROL);
mxlc.pamxctrl=&mxc;
mixerGetLineControls((HMIXEROBJ)m_hMixer,&mxlc,
MIXER_OBJECTF_HMIXER|MIXER_GETLINECONTROLSF_ONEBYTYPE);
m_controlid=mxc.dwControlID;
m_control.SetRange(mxc.Bounds.lMinimum,mxc.Bounds.lMaximum);
MIXERCONTROLDETAILS_SIGNED mxcdVolume;
MIXERCONTROLDETAILS mxcd;
mxcd.cbStruct = sizeof(MIXERCONTROLDETAILS);
mxcd.dwControlID = mxc.dwControlID;
mxcd.cChannels = 1;
mxcd.cMultipleItems = 0;
mxcd.cbDetails = sizeof(MIXERCONTROLDETAILS_SIGNED);
mxcd.paDetails = &mxcdVolume;
mixerGetControlDetails((HMIXEROBJ)m_hMixer,&mxcd,
MIXER_OBJECTF_HMIXER|MIXER_GETCONTROLDETAILSF_VALUE);
m_control.SetPos(mxcdVolume.lValue);
return TRUE;
}
void CControlSoundDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
if ((nID & 0xFFF0) == IDM_ABOUTBOX)
{
CAboutDlg dlgAbout;
dlgAbout.DoModal();
}
else
{
CDialog::OnSysCommand(nID, lParam);
}
}
// If you add a minimize button to your dialog, you will need the code below
// to draw the icon. For MFC applications using the document/view model,
// this is automatically done for you by the framework.
void CControlSoundDlg::OnPaint()
{
if (IsIconic())
{
CPaintDC dc(this); // device context for painting
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);
// Center icon in client rectangle
int cxIcon = GetSystemMetrics(SM_CXICON);
int cyIcon = GetSystemMetrics(SM_CYICON);
CRect rect;
GetClientRect(&rect);
int x = (rect.Width() - cxIcon + 1) / 2;
int y = (rect.Height() - cyIcon + 1) / 2;
// Draw the icon
dc.DrawIcon(x, y, m_hIcon);
}
else
{
CDialog::OnPaint();
}
}
// The system calls this to obtain the cursor to display while the user drags
// the minimized window.
HCURSOR CControlSoundDlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}
LONG CControlSoundDlg::OnMixerCtrlChange(UINT wParam, LONG lParam)
{
if ((HMIXER)wParam == m_hMixer && (DWORD)lParam ==m_controlid)
{
MIXERCONTROLDETAILS_UNSIGNED mxcdVolume;
MIXERCONTROLDETAILS mxcd;
mxcd.cbStruct = sizeof(MIXERCONTROLDETAILS);
mxcd.dwControlID = m_controlid;
mxcd.cChannels = 1;
mxcd.cMultipleItems = 0;
mxcd.cbDetails = sizeof(MIXERCONTROLDETAILS_UNSIGNED);
mxcd.paDetails = &mxcdVolume;
mixerGetControlDetails((HMIXEROBJ)m_hMixer,&mxcd,
MIXER_OBJECTF_HMIXER|MIXER_GETCONTROLDETAILSF_VALUE);
m_control.SetPos(mxcdVolume.dwValue);
}
return 0L;
}
BOOL CControlSoundDlg::DestroyWindow()
{
if(m_hMixer!=NULL)
{
mixerClose(m_hMixer);
m_hMixer=NULL;
}
return CDialog::DestroyWindow();
}
void CControlSoundDlg::OnHScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar)
{
DWORD val;
val=((CSliderCtrl*)pScrollBar)->GetPos();
MIXERCONTROLDETAILS_UNSIGNED mxcdVolume = {val};
MIXERCONTROLDETAILS mxcd;
mxcd.cbStruct = sizeof(MIXERCONTROLDETAILS);
mxcd.dwControlID = m_controlid;
mxcd.cChannels = 1;
mxcd.cMultipleItems = 0;
mxcd.cbDetai
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