多媒体编程

开发平台：
Visual C++

VocPlayerDlg.cpp：源码内容
							// VocPlayerDlg.cpp : implementation file
//
#include "stdafx.h"
#include "VocPlayer.h"
#include "VocPlayerDlg.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CVocPlayerDlg dialog
CVocPlayerDlg::CVocPlayerDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CVocPlayerDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CVocPlayerDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CVocPlayerDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CVocPlayerDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CVocPlayerDlg, CDialog)
	//{{AFX_MSG_MAP(CVocPlayerDlg)
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON_BROWSE, OnButtonBrowse)
	ON_BN_CLICKED(IDC_BUTTON_PLAY, OnButtonPlay)
	//}}AFX_MSG_MAP
   ON_MESSAGE( MM_WOM_DONE,            OnMMDone )
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CVocPlayerDlg message handlers
BOOL CVocPlayerDlg::OnInitDialog()
{
	CDialog::OnInitDialog();
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
   GetDlgItem( IDC_BUTTON_PLAY )->EnableWindow( false );
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}
// 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 CVocPlayerDlg::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();
	}
}
HCURSOR CVocPlayerDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}
void CVocPlayerDlg::OnButtonBrowse() 
{
   CFileDialog DlgFileOpen( true, "voc", NULL,
                            OFN_PATHMUSTEXIST|OFN_LONGNAMES|OFN_HIDEREADONLY,
                            "VOC Files (*.voc)|*.voc||",
                            this );
   if ( DlgFileOpen.DoModal() != IDOK )
      return;
   Filename = DlgFileOpen.GetPathName();
   GetDlgItem( IDC_STATIC_FILENAME )->SetWindowText( Filename );
   GetDlgItem( IDC_BUTTON_PLAY )->EnableWindow( true );
}
void CVocPlayerDlg::OnButtonPlay() 
{
   CString Filename;
   GetDlgItem( IDC_STATIC_FILENAME )->GetWindowText( Filename );
   VocPlayer.Play( Filename, this );
}
void CVocPlayerDlg::OnMMDone( WPARAM, LPARAM )
{
   VocPlayer.Reset();
   VocPlayer.Clear();
}

						