enum { IDD = IDD_MP3PLAYER_DIALOG };
CStatic m_Status;
CButton m_Play;
CString m_Path;

private:
HWND m_Audio;
BOOL Pause;

//Khai báo thư viện chứa các hàm của MCI :

#include "vfw.h"

// Thao tac tren giao dien cua chuong trinh.Viec xay dung giao dien cua chuong trinh
//duoc thuc hien mot cach truc quan tren file *.rc .Khi dung MFC ,tren file *Dlg.cpp
//se tu dong xay dung nhung ham duoi day de ve ve giao dien tren man hinh.

BOOL CMp3PlayerDlg::OnInitDialog()
{
CDialog::OnInitDialog();

// Tao bieu tuong trong hop thoai. Khung chuong trinh se tu dong lam viec nay
// when the application's main window is not a dialog
SetIcon(m_hIcon, TRUE); // Set big icon
SetIcon(m_hIcon, FALSE); // Set small icon



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 CMp3PlayerDlg::OnPaint()
{
if (IsIconic())
{
CPaintDC dc(this); // ung dung do hoa

SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

// bieu tuong trung tam cua hinh chu nhat
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;

// Ve bieu tuong
dc.DrawIcon(x, y, m_hIcon);
}
else
{
CDialog::OnPaint();
}
}

// he thong se goi lenh nay de tao chuot khi nguoi dung keo chuot di
// thu nho cua so
HCURSOR CMp3PlayerDlg::OnQueryDragIcon()
{