previewdialogdlg.cpp

从CDialog派生的扩展对话框例子

// PreviewDialogDlg.cpp : implementation file
//

#include "stdafx.h"
#include "PreviewDialog.h"
#include "PreviewDialogDlg.h"

#include "FileDialogEx.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()

/////////////////////////////////////////////////////////////////////////////
// CPreviewDialogDlg dialog

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

BEGIN_MESSAGE_MAP(CPreviewDialogDlg, CDialog)
	//{{AFX_MSG_MAP(CPreviewDialogDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_SAVE, OnSave)
	ON_BN_CLICKED(IDC_OPEN, OnOpen)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CPreviewDialogDlg message handlers

BOOL CPreviewDialogDlg::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
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

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


//打开保存文件预览对话框
void CPreviewDialogDlg::OnSave() 
{
	CFileDialogEx dlg(FALSE);
	//--------只要加上下面这段代码，就可以显示2000下的打开文件对话框-------------
	//------用来检测目前的操作系统的版本信息
	int nStructSize = 0;
	DWORD dwVersion, dwWindowsMajorVersion, dwWindwosMinorVersion;
	dwVersion = GetVersion();
	dwWindowsMajorVersion = (DWORD)(LOBYTE(LOWORD(dwVersion)));
	dwWindwosMinorVersion = (DWORD)(HIBYTE(LOWORD(dwVersion)));
	if(dwVersion < 0x80000000)
	{
		nStructSize = 88;   //2k,xp下显示新的版本
	}
	else
	{
		nStructSize = 76;  //98下显示老版本，如图1
	}
	dlg.m_ofn.lStructSize = nStructSize;  //------用来检测目前的操作系统的版本信息
	
	dlg.DoModal();


}

//打开文件预览对话框
void CPreviewDialogDlg::OnOpen() 
{

	CString strPathName;
	
	CFileDialogEx dlg(TRUE);


	//--------只要加上下面这段代码，就可以显示2000下的打开文件对话框-------------
	//------用来检测目前的操作系统的版本信息
	int nStructSize = 0;
	DWORD dwVersion, dwWindowsMajorVersion, dwWindwosMinorVersion;
	dwVersion = GetVersion();
	dwWindowsMajorVersion = (DWORD)(LOBYTE(LOWORD(dwVersion)));
	dwWindwosMinorVersion = (DWORD)(HIBYTE(LOWORD(dwVersion)));
	if(dwVersion < 0x80000000)
	{
		nStructSize = 88;   //2k,xp下显示新的版本
	}
	else
	{
		nStructSize = 76;  //98下显示老版本，如图1
	}
	dlg.m_ofn.lStructSize = nStructSize;  //------用来检测目前的操作系统的版本信息

	if(dlg.DoModal() == IDOK)
	{
		POSITION	Pos;
		Pos = dlg.GetStartPosition();
		while (Pos != NULL)
		{
			strPathName = dlg.GetNextPathName(Pos);
			if(!strPathName.IsEmpty())
			{
				MessageBox(strPathName, _T("GetNextPathName"), MB_ICONINFORMATION);
			}
			
		} 
	}

}