mcistrrecorddlg.cpp

来自「《Visual C++视频技术方案宝典》配套光盘」· C++ 代码 · 共 276 行

// MCIStrRecordDlg.cpp : implementation file
//

#include "stdafx.h"
#include "MCIStrRecord.h"
#include "MCIStrRecordDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
#include <MMSystem.h>
#pragma comment(lib, "winmm.lib")
/////////////////////////////////////////////////////////////////////////////
// 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()

/////////////////////////////////////////////////////////////////////////////
// CMCIStrRecordDlg dialog

CMCIStrRecordDlg::CMCIStrRecordDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CMCIStrRecordDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CMCIStrRecordDlg)
		// 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 CMCIStrRecordDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CMCIStrRecordDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CMCIStrRecordDlg, CDialog)
	//{{AFX_MSG_MAP(CMCIStrRecordDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BTADD, OnAddFile)
	ON_BN_CLICKED(IDC_BTRECORD, OnRecord)
	ON_BN_CLICKED(IDC_BTPLAY, OnPlay)
	ON_BN_CLICKED(IDC_BTSAVE, OnSave)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMCIStrRecordDlg message handlers

BOOL CMCIStrRecordDlg::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
	m_bReset=FALSE;
	GetDlgItem(IDC_PATH)->EnableWindow(false);
	GetDlgItem(IDC_BTRECORD)->EnableWindow(false);
	GetDlgItem(IDC_BTPLAY)->EnableWindow(false);
	GetDlgItem(IDC_BTSAVE)->EnableWindow(false);
	GetDlgItem(IDC_SAMPSIZE)->SetWindowText("8");
	GetDlgItem(IDC_TIME)->SetWindowText("6");
	GetDlgItem(IDC_FREQ)->SetWindowText("11052");
	return TRUE;
}

void CMCIStrRecordDlg::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 CMCIStrRecordDlg::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 CMCIStrRecordDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CMCIStrRecordDlg::OnAddFile() 
{
	CFileDialog file(false,NULL,NULL,NULL,"文件(*.wav)|*.wav||");
	if(file.DoModal()==IDOK)
	{
		CString strname=file.GetPathName();
		strname+=".wav";
		GetDlgItem(IDC_PATH)->SetWindowText(strname);
		GetDlgItem(IDC_BTRECORD)->EnableWindow(true);
	}
}

void CMCIStrRecordDlg::OnRecord() 
{
	CString size,time,freq;
	char szBuf[256];
	TCHAR lpstrCommand[255];
	GetDlgItem(IDC_SAMPSIZE)->GetWindowText(size);
	GetDlgItem(IDC_TIME)->GetWindowText(time);
	GetDlgItem(IDC_FREQ)->GetWindowText(freq);
	GetDlgItem(IDC_BTRECORD)->EnableWindow(false);
	if(atoi(time)>6)
	{
		MessageBox("可以录制6秒以内的内容");
		GetDlgItem(IDC_TIME)->SetWindowText("6");
		return;
	}
	if(atoi(size)!=8 && atoi(size)!=16)
	{
		MessageBox("采样大小应为8或16");
		GetDlgItem(IDC_SAMPSIZE)->SetWindowText("8");
		return;
	}
	if(atoi(freq)>65500)
	{
		MessageBox("输入的数值太大");
		GetDlgItem(IDC_FREQ)->SetWindowText("11052");
		return;
	}
	//设置采样大小
	wsprintf(lpstrCommand,_T("set waveaudio bitpersample %s"),size);
	mciSendString(lpstrCommand,szBuf,256,0);
	//设置采样频率
	wsprintf(lpstrCommand,_T("set waveaudio samplespersec %s"),freq);
	mciSendString(lpstrCommand, szBuf,256,0);
	//buffer指定可以录制6秒
	wsprintf(lpstrCommand,_T("open new type waveaudio alias p1 buffer %s"),time);
	mciSendString(lpstrCommand,0,0,0);
	//开始录制
	mciSendString("record p1",0,0,0);
	m_bReset=TRUE;
	//等待录音完成
	::Sleep(atoi(time)*1000);
	mciSendString("stop p1",0,0,0);
	GetDlgItem(IDC_BTPLAY)->EnableWindow(true);
	GetDlgItem(IDC_BTSAVE)->EnableWindow(true);
	
}

void CMCIStrRecordDlg::OnPlay() 
{
	TCHAR lpstrCommand[255];
	CString time;
	GetDlgItem(IDC_TIME)->GetWindowText(time);
	//播放全部指定时间内容
	if(m_bReset)
	{
		wsprintf(lpstrCommand, _T("play p1 from 0 to %d notify"),atoi(time)*1000);
		mciSendString(lpstrCommand,0,0,0);
	}
}

void CMCIStrRecordDlg::OnSave() 
{
	CString tmp;
	GetDlgItem(IDC_PATH)->GetWindowText(tmp);
	TCHAR lpstrCommand[255];
	wsprintf(lpstrCommand, "save p1 %s",tmp);
	mciSendString(lpstrCommand,0,0,0);
	mciSendString("close p1",0,0,0);

	//保存后停止播放，开始重新录制
	m_bReset=FALSE;
	GetDlgItem(IDC_BTPLAY)->EnableWindow(false);
	GetDlgItem(IDC_BTSAVE)->EnableWindow(false);
	GetDlgItem(IDC_PATH)->SetWindowText("");
}

BOOL CMCIStrRecordDlg::DestroyWindow() 
{
	if(!m_bReset)
	mciSendString("slose p1",0,0,0);
	return CDialog::DestroyWindow();
}