systemtimedlg.cpp

改变系统时间的实现

// SystemTimeDlg.cpp : implementation file
//

#include "stdafx.h"
#include "SystemTime.h"
#include "SystemTimeDlg.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()

/////////////////////////////////////////////////////////////////////////////
// CSystemTimeDlg dialog

CSystemTimeDlg::CSystemTimeDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CSystemTimeDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CSystemTimeDlg)
	m_strTime = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CSystemTimeDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CSystemTimeDlg)
	DDX_Control(pDX, IDC_EDIT1, m_edtTime);
	DDX_Text(pDX, IDC_TIME, m_strTime);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CSystemTimeDlg, CDialog)
	//{{AFX_MSG_MAP(CSystemTimeDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_WM_TIMER()
	ON_WM_CLOSE()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CSystemTimeDlg message handlers

BOOL CSystemTimeDlg::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
	
	SYSTEMTIME sysTime;
	GetLocalTime(&sysTime);
	m_strTime.Format("%d年%d月%d日%d时%d分%d秒",
		sysTime.wYear,sysTime.wMonth,sysTime.wDay,sysTime.wHour,
		sysTime.wMinute,sysTime.wSecond);
	UpdateData(FALSE);
	SetTimer(1,1000,NULL);
	m_edtTime.SetMask("YYYY年MM月DD日hh时mm分ss秒");
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

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

void CSystemTimeDlg::OnOK() 
{
	COleDateTime dt;
	dt=m_edtTime.GetDateTime();
	SYSTEMTIME sysTime;
	memset( &sysTime,0,sizeof(SYSTEMTIME) );
	sysTime.wYear=dt.GetYear();
	sysTime.wMonth=dt.GetMonth();
	sysTime.wDay=dt.GetDay();
	sysTime.wHour=dt.GetHour();
	sysTime.wMinute=dt.GetMinute();
	sysTime.wSecond=dt.GetSecond();
	if( SetLocalTime(&sysTime) )
	{
		::AfxMessageBox("设置系统时间成功！",MB_OK);
		m_edtTime.GetWindowText(m_strTime);
		UpdateData(FALSE);
	}
	else
		::AfxMessageBox("设置系统时间失败！",MB_OK|MB_ICONEXCLAMATION);
}

void CSystemTimeDlg::OnTimer(UINT nIDEvent) 
{
	if( nIDEvent == 1 )
	{
		SYSTEMTIME sysTime;
		GetLocalTime(&sysTime);
		m_strTime.Format("%d年%d月%d日%d时%d分%d秒",
			sysTime.wYear,sysTime.wMonth,sysTime.wDay,sysTime.wHour,
			sysTime.wMinute,sysTime.wSecond);
		UpdateData(FALSE);
	}
	CDialog::OnTimer(nIDEvent);
}

void CSystemTimeDlg::OnClose() 
{
	KillTimer(1);
	CDialog::OnClose();
}