Dialog和FormView如何派生通用类

派生通用类涉及到派生类的构造函数需要传递窗口ID和CWnd，所以要在派生类中事先定义好

在Dialog中构造函数是这样定义的

public:

    CDialogEx();

    CDialogEx(UINT nIDTemplate, CWnd *pParent = NULL);

    CDialogEx(LPCTSTR lpszTemplateName, CWnd *pParentWnd = NULL);

所以在派生

Dialog类时要这样构造

class CThemeDialogForFixShootSearch : public CDialogEx

{

    DECLARE_DYNAMIC(CThemeDialogForFixShootSearch)

public:

    CThemeDialogForFixShootSearch(UINT nIDTemplate, CWnd* pParent = NULL);   // standard constructor

    virtual ~CThemeDialogForFixShootSearch();

}

#include "stdafx.h"

#include "ThemeDialogForFixShootSearch.h"

// CThemeDialogForFixShootSearch dialog

IMPLEMENT_DYNAMIC(CThemeDialogForFixShootSearch, CDialogEx)

CThemeDialogForFixShootSearch::CThemeDialogForFixShootSearch(UINT nIDTemplate, CWnd* pParent /*=NULL*/)

    : CDialogEx(nIDTemplate, pParent)

{

}

CThemeDialogForFixShootSearch::~CThemeDialogForFixShootSearch()

{

}

void CThemeDialogForFixShootSearch::DoDataExchange(CDataExchange* pDX)

{

    CDialogEx::DoDataExchange(pDX);

}

BEGIN_MESSAGE_MAP(CThemeDialogForFixShootSearch, CDialogEx)

END_MESSAGE_MAP()

同样FormView的构造函数为

protected:      // must derive your own class

    CFormView(LPCTSTR lpszTemplateName);

    CFormView(UINT nIDTemplate);

因为FormView没有默认构造，所以必须带参数

#pragma once

#include "afxext.h"

class CBackgroundColor :public CFormView

{

    DECLARE_DYNAMIC(CBackgroundColor)

public:

    CBackgroundColor(UINT nIDTemplate);

    virtual ~CBackgroundColor();

    DECLARE_MESSAGE_MAP()

    afx_msg void OnPaint();

};

#include "stdafx.h"

#include "BackgroundColor.h"

#include <afxtempl.h>

IMPLEMENT_DYNAMIC(CBackgroundColor, CFormView)

CBackgroundColor::CBackgroundColor (UINT nIDTemplate)

: CFormView(nIDTemplate)

{

}

CBackgroundColor::~CBackgroundColor()

{

}

BEGIN_MESSAGE_MAP(CBackgroundColor, CFormView)

    ON_WM_PAINT()

END_MESSAGE_MAP()