From WTL to MFC (1) ATL basic

#define _ATL_CSTRING_EXPLICIT_CONSTRUCTORS
 
#define _AFX_ALL_WARNINGS
 
#include <afxwin.h>
#include <afxext.h>
 
#include <afxdtctl.h>
#ifndef _AFX_NO_AFXCMN_SUPPORT
#include <afxcmn.h>
#endif
 
 
#include "resource.h"
 
/////////////////////////////////////////
// The About dialog
 
class CAboutDlg : public CDialog
{
public:
	CAboutDlg() : CDialog(CAboutDlg::IDD) {};
 
	enum { IDD = IDD_ABOUT };
 
	protected:
	virtual void DoDataExchange(CDataExchange* pDX)
	{
		CDialog::DoDataExchange(pDX);
	}
 
protected:
	DECLARE_MESSAGE_MAP()
};
 
 
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
END_MESSAGE_MAP()
 
 
 
 
 
 
 
 
 
/////////////////////////////////////////
//	WinMain
int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hInstPrev,
                   LPSTR szCmdLine, int nCmdShow)
 
{
	if (AfxWinInit(hInst, hInstPrev, szCmdLine, nCmdShow)){
		CAboutDlg dlg;
		dlg.DoModal();
	}
 
	AfxWinTerm();
	return 0;
}

#include <atlbase.h>
#if _ATL_VER < 0x7000
extern CComModule _Module;
#endif
#include <atlwin.h>
 
#if _ATL_VER < 0x7000
CComModule _Module;
#define _APP _Module
#else
#define _APP _AtlBaseModule
#endif
 
#include "resource.h"
 
/////////////////////////////////////////
// The About dialog
 
class CAboutDlg : public CDialogImpl<CAboutDlg>
{
public:
    enum { IDD = IDD_ABOUT };
 
    BEGIN_MSG_MAP(CAboutDlg)
        MESSAGE_HANDLER(WM_CLOSE, OnClose)
        COMMAND_ID_HANDLER(IDOK, OnOKCancel)
        COMMAND_ID_HANDLER(IDCANCEL, OnOKCancel)
    END_MSG_MAP()
 
 
    LRESULT OnClose
        (UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
    {
        EndDialog(IDCANCEL);
        return 0;
    }
 
    LRESULT OnOKCancel
        (WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled)
    {
        EndDialog(wID);
        return 0;
    }
};
 
/////////////////////////////////////////
//	WinMain
int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hInstPrev,
                   LPSTR szCmdLine, int nCmdShow)
{
#if _ATL_VER < 0x7000
    _Module.Init(NULL, hInst);
#endif
 
	CAboutDlg dlg;
	dlg.DoModal();
 
    _APP.Term();
    return 0;
}