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// DSDemoDlg.cpp : implementation file
//
#include "stdafx.h"
#include "DSDemo.h"
#include "DSDemoDlg.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()
/////////////////////////////////////////////////////////////////////////////
// CDSDemoDlg dialog
CDSDemoDlg::CDSDemoDlg(CWnd* pParent /*=NULL*/)
: CDialog(CDSDemoDlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CDSDemoDlg)
//}}AFX_DATA_INIT
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CDSDemoDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CDSDemoDlg)
DDX_Control(pDX, ID_EFFECTVOLUME, m_SliderEffectVolume);
DDX_Control(pDX, ID_BKVOLUME, m_SliderBKVolume);
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CDSDemoDlg, CDialog)
//{{AFX_MSG_MAP(CDSDemoDlg)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_NOTIFY(NM_RELEASEDCAPTURE, ID_BKVOLUME, OnReleasedcaptureBkvolume)
ON_NOTIFY(NM_RELEASEDCAPTURE, ID_EFFECTVOLUME, OnReleasedcaptureEffectvolume)
ON_BN_CLICKED(IDC_EFFECT, OnEffect)
ON_BN_CLICKED(IDC_PLAYBKMUSIC, OnPlaybkmusic)
ON_WM_CLOSE()
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CDSDemoDlg message handlers
BOOL CDSDemoDlg::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
// TODO: Add extra initialization here
//设置音量范围
m_SliderBKVolume.SetRange(0,100);
m_SliderEffectVolume.SetRange(0,100);
//初始时的音量均设成最大值
m_SliderBKVolume.SetPos(100);
m_SliderEffectVolume.SetPos(100);
//选中播放背景音乐复选框
((CButton*)GetDlgItem(IDC_PLAYBKMUSIC))->SetCheck(1);
//初始化DirectSound对象
if(!InitializeDirectSound(*AfxGetMainWnd()))
{
AfxMessageBox("初始化DirectSound失败!",MB_OK);
CDialog::OnOK();
return TRUE ;
}
//创建声音缓冲区
m_lpBkGrdDSBuffer=new CDSBuffer("bk.wav",TRUE,m_lpDS);
m_lpYinXiaoDSBuffer=new CDSBuffer("effect.wav",FALSE,m_lpDS);
//播放背景音乐
m_lpBkGrdDSBuffer->PlaySound();
return TRUE; // return TRUE unless you set the focus to a control
}
void CDSDemoDlg::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 CDSDemoDlg::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 CDSDemoDlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}
BOOL CDSDemoDlg::InitializeDirectSound(HWND hWnd)
{
// 创建背景音乐和音效DirectSound对象
if (DS_OK != DirectSoundCreate(NULL, &m_lpDS, NULL))
{
::MessageBox(NULL,"创建DirectSound对象失败\n找不到可利用的声音设备",NULL,MB_OK);
return FALSE;
}
// 设置协作级别
if (DS_OK != m_lpDS->SetCooperativeLevel(hWnd, DSSCL_NORMAL))
{
::MessageBox(NULL,"设置协作级别失败",NULL,MB_OK);
return FALSE;
}
return TRUE;
}
void CDSDemoDlg::ClearDSBuffer()
{
m_lpBkGrdDSBuffer->StopSound();
m_lpYinXiaoDSBuffer->StopSound();
if (m_lpBkGrdDSBuffer)
delete m_lpBkGrdDSBuffer;
if (m_lpYinXiaoDSBuffer)
delete m_lpYinXiaoDSBuffer;
}
void CDSDemoDlg::OnReleasedcaptureBkvolume(NMHDR* pNMHDR, LRESULT* pResult)
{
int nPos = m_SliderBKVolume.GetPos();
m_lpBkGrdDSBuffer->SetVolume(nPos);
*pResult = 0;
}
void CDSDemoDlg::OnReleasedcaptureEffectvolume(NMHDR* pNMHDR, LRESULT* pResult)
{
int nPos = m_SliderEffectVolume.GetPos();
m_lpYinXiaoDSBuffer->SetVolume(nPos);
*pResult = 0;
}
void CDSDemoDlg::OnEffect()
{
m_lpYinXiaoDSBuffer->PlaySound();
}
void CDSDemoDlg::OnPlaybkmusic()
{
CButton* pButton = (CButton*)GetDlgItem(IDC_PLAYBKMUSIC);
BOOL bFlag = (pButton->GetCheck() == 1);
if (bFlag) m_lpBkGrdDSBuffer->PlaySound();
else m_lpBkGrdDSBuffer->StopSound();
}
void CDSDemoDlg::OnClose()
{
// 删除声音缓冲区对象
ClearDSBuffer();
CDialog::OnClose();
}
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