【VC开源代码栏目提醒】:网学会员,鉴于大家对VC开源代码十分关注,论文会员在此为大家搜集整理了“midiDlg.cpp”一文,供大家参考学习!
// midiDlg.cpp : 实现文件
//
#include "stdafx.h"
#include "midi.h"
#include "midiDlg.h"
#include ".\mididlg.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#endif
// 用于应用程序“关于”菜单项的 CAboutDlg 对话框
class CAboutDlg : public CDialog
{
public:
CAboutDlg();
// 对话框数据
enum { IDD = IDD_ABOUTBOX };
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV 支持
// 实现
protected:
DECLARE_MESSAGE_MAP()
};
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
}
void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
}
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
END_MESSAGE_MAP()
// CmidiDlg 对话框
CmidiDlg::CmidiDlg(CWnd* pParent /*=NULL*/)
: CDialog(CmidiDlg::IDD, pParent)
, m_fileName(_T(""))
, m_strStatus(_T(""))
{
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CmidiDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
DDX_Control(pDX, IDC_PROGRESS1, m_Pro);
}
BEGIN_MESSAGE_MAP(CmidiDlg, CDialog)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
//}}AFX_MSG_MAP
ON_BN_CLICKED(IDC_BUTTON1, OnBnClickedButton1)
ON_BN_CLICKED(IDC_BUTTON2, OnBnClickedButton2)
ON_BN_CLICKED(IDC_BUTTON3, OnBnClickedButton3)
ON_BN_CLICKED(IDC_BUTTON4, OnBnClickedButton4)
ON_BN_CLICKED(IDC_BUTTON5, OnBnClickedButton5)
ON_WM_TIMER()
END_MESSAGE_MAP()
// CmidiDlg 消息处理程序
BOOL CmidiDlg::OnInitDialog()
{
CDialog::OnInitDialog();
// 将\“关于...\”菜单项添加到系统菜单中。
// IDM_ABOUTBOX 必须在系统命令范围内。
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);
}
}
// 设置此对话框的图标。当应用程序主窗口不是对话框时,框架将自动
// 执行此操作
SetIcon(m_hIcon, TRUE); // 设置大图标
SetIcon(m_hIcon, FALSE); // 设置小图标
// TODO: 在此添加额外的初始化代码
return TRUE; // 除非设置了控件的焦点,否则返回 TRUE
}
void CmidiDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
if ((nID & 0xFFF0) == IDM_ABOUTBOX)
{
CAboutDlg dlgAbout;
dlgAbout.DoModal();
}
else
{
CDialog::OnSysCommand(nID, lParam);
}
}
// 如果向对话框添加最小化按钮,则需要下面的代码
// 来绘制该图标。对于使用文档/视图模型的 MFC 应用程序,
// 这将由框架自动完成。
void CmidiDlg::OnPaint()
{
if (IsIconic())
{
CPaintDC dc(this); // 用于绘制的设备上下文
SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);
// 使图标在工作矩形中居中
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;
// 绘制图标
dc.DrawIcon(x, y, m_hIcon);
}
else
{
CDialog::OnPaint();
}
}
//当用户拖动最小化窗口时系统调用此函数取得光标显示。
HCURSOR CmidiDlg::OnQueryDragIcon()
{
return static_cast<HCURSOR>(m_hIcon);
}
void CmidiDlg::OnBnClickedButton1()
{
SetTimer(TIMER_ID,1000,NULL);
DWORD news=m_midi.Play (this->GetSafeHwnd() ,m_fileName);
if(m_midi.m_Status ==Played)
m_strStatus="正在播放";
else
m_strStatus="播放失败";
SetDlgItemText(IDC_STATUS,m_strStatus.GetString());
}
void CmidiDlg::OnBnClickedButton2()
{
if(m_midi.m_Status ==Played)
{
m_midi.Pause ();
if(m_midi.m_Status ==Paused)
{
m_strStatus="已经暂停";
SetDlgItemText(IDC_BUTTON2,"继续");
}
else
m_strStatus="暂停失败";
SetDlgItemText(IDC_STATUS,m_strStatus.GetString());
}
else if(m_midi.m_Status ==Paused)
{
m_midi.Resume ();
if(m_midi.m_Status ==Played)
{
m_strStatus="正在播放";
SetDlgItemText(IDC_BUTTON2,"暂停");
}
else
{
AfxMessageBox(m_midi.m_Status);
m_strStatus="播放失败";
}
SetDlgItemText(IDC_STATUS,m_strStatus.GetString());
}
}
void CmidiDlg::OnBnClickedButton3()
{
m_midi.Stop ();
if(m_midi.m_Status ==Stoped)
m_strStatus="已经停止";
SetDlgItemText(IDC_STATUS,m_strStatus.GetString());
}
void CmidiDlg::OnBnClickedButton4()
{
m_midi.Close ();
if(m_midi.m_Status ==Closed)
m_strStatus="已经关闭";
else
m_strStatus="关闭失败";
SetDlgItemText(IDC_STATUS,m_strStatus.GetString());
}
void CmidiDlg::OnBnClickedButton5()
{
if(m_midi.m_Status ==Opened)
m_midi.Close ();
CFileDialog dlg(true, "","", OFN_HIDEREADONLY|OFN_OVERWRITEPROMPT, "Midi文件(*.mid)|*.mid|");
if(dlg.DoModal ()==IDOK)
{
m_fileName=dlg.GetFileName ();
if(m_fileName!="")
SetDlgItemText(IDC_STATUS,m_fileName.GetString ());
}
if(m_midi.Open (m_fileName)!=0)
{
m_strStatus="打开失败";
SetDlgItemText(IDC_STATUS,m_strStatus.GetString());
}
m_strStatus ="已经打开";
SetDlgItemText(IDC_STATUS,m_strStatus.GetString());
}
void CmidiDlg::OnTimer(UINT nIDEvent)
{
// TODO: 在此添加消息处理程序代码和/或调用默认值
DWORD t=m_midi.GetStatus (MCI_STATUS_CURRENT_TRACK,this->GetSafeHwnd ());
if(m_midi.GetStatus (MCI_STATUS_LENGTH,this->GetSafeHwnd ())!=0)
{
m_Pro.SetPos ((m_midi.GetStatus (MCI_STATUS_POSITION,this->GetSafeHwnd ())*100)/m_midi.GetStatus (MCI_STATUS_LENGTH,this->GetSafeHwnd ()));
DWORD curPos=m_midi.GetStatus (MCI_STATUS_POSITION,this->GetSafeHwnd ());
DWORD length=m_midi.GetStatus (MCI_STATUS_LENGTH,this->GetSafeHwnd ());
CString str;
str.Format ("%lu/%lu",curPos,length);
SetDlgItemText(IDC_POSITION,str.GetString());
}
else
{
m_Pro.SetPos (0);
CString str;
str.Format ("%lu/%lu",0,0);
SetDlgItemText(IDC_POSITION,str.GetString());
}
CDialog::OnTimer(nIDEvent);
}
// 获取设备信息
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