verchkappdlgdlg.cpp

visual c++ 实例编程

/////////////////////////////////////////////////////////////////////////////
// Project：VERCHKAPPDLG
// Author：NorthTibet
// Date：星期四, 三月 20, 2003
// Description：使用 WinInet API 实现文件 FTP ，\n读取版本文件对程序版本进行检查。
//
/////////////////////////////////////////////////////////////////////////////
// VerChkAppDlgDlg.cpp : implementation file
//
#include "stdafx.h"
#include "VerChkAppDlg.h"
#include "VerChkAppDlgDlg.h"
#include "MyVer.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

#include "about.h"
/////////////////////////////////////////////////////////////////////////////
// CVerChkAppDlgDlg dialog

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

BEGIN_MESSAGE_MAP(CVerChkAppDlgDlg, CDialog)
	//{{AFX_MSG_MAP(CVerChkAppDlgDlg)
	ON_WM_SYSCOMMAND()
	ON_BN_CLICKED(ID_APP_ABOUT,OnAbout)
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CVerChkAppDlgDlg message handlers

BOOL CVerChkAppDlgDlg::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
	
	// TODO: Add extra initialization here
	// 读取本程序的版本信息并设置静态控件 IDC_VERSION_CHECK 的文本

	m_wndVersion.SubclassDlgItem(IDC_VERSION,this);
	m_wndVerChkLink.SubclassDlgItem(IDC_VERSION_CHECK,this);
	
	CMyVersionInfo vi;
	CString s;
	s.Format(_T("应用程序版本号 %d.%02d"),
		HIWORD(vi.dwProductVersionMS),LOWORD(vi.dwProductVersionMS));
	m_wndVersion.SetWindowText(s);

	// compare my version to current version on web site
	if (App.m_dwNewVersion && vi.dwProductVersionMS < App.m_dwNewVersion) {
		// current version is newer: display link
		s.Format(_T("Get version %d.%02d"),
			HIWORD(App.m_dwNewVersion),LOWORD(App.m_dwNewVersion));
		m_wndVerChkLink.SetWindowText(s);

	} else {
		// current version not available: hide link
		m_wndVerChkLink.ShowWindow(SW_HIDE);
	}	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

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

void CVerChkAppDlgDlg::OnAbout()
{
	CAboutDlg().DoModal();
}