MFC自定义控件编写过程

功能：点击客户区，新建一个灰色的小窗体。点击这个小窗体，弹出一个对话框，其信息为“你点击了自封装的控件”

[1] 自定义类公有继承CWnd类

[2] 在自定义类的头文件中添加DECLARE_DYNCREA TE(MySelfWnd)

在其源文件中添加IMPLEMENT_DYNCREA TE(MySelfWnd, CWnd)

这么做的原因请看候sir《深入浅出MFC》

[3] 覆盖CWnd中的虚函数Create(......)

[4] WM_LBUTTONDOWN添加其消息映射函数

1// MySelfWnd1.h

2class MySelfWnd : public CWnd

4public:

5 MySelfWnd();

6 DECLARE_DYNCREATE(MySelfWnd)

7virtual BOOL Create(LPCTSTR lpszClassName, LPCTSTR lpszWindowName, DWORD dwStyle, const RECT& rect, CWnd* pParentWnd, UINT nID, CCreateContext* pContext = NULL);

8virtual ~MySelfWnd();

9protected:

10 afx_msg void OnLButtonDown(UINT nFlags, CPoint point);

11 DECLARE_MESSAGE_MAP()

12};

13//MySelfWnd1.cpp

14#include "stdafx.h"

15#include "MySelfWnd.h"

16#include "MySelfWnd1.h"

17MySelfWnd::MySelfWnd()

18{

20 }

21MySelfWnd::~MySelfWnd()

22{

23}

24IMPLEMENT_DYNCREATE(MySelfWnd, CWnd)

25BEGIN_MESSAGE_MAP(MySelfWnd, CWnd)

26//{{AFX_MSG_MAP(MySelfWnd)

27 ON_WM_LBUTTONDOWN()

28//}}AFX_MSG_MAP

29END_MESSAGE_MAP()

30void MySelfWnd::OnLButtonDown(UINT nFlags, CPoint point)

31{

32// TODO: Add your message handler code here and/or call default

33 MessageBox("你点击了自封装的控件");

34 CWnd::OnLButtonDown(nFlags, point);

35}

36BOOL MySelfWnd::Create(LPCTSTR lpszClassName, LPCTSTR lpszWindowName, DWORD dwStyle, const RECT& rect, CWnd* pParentWnd, UINT nID, CCreateContext* pContext) 37{

38// TODO: Add your specialized code here and/or call the base class

39// 重新注册窗口类,

40 lpszClassName=AfxRegisterWndClass( CS_HREDRAW | CS_VREDRAW , AfxGetApp()->LoadStandardCursor(IDC_ARROW),

41 (HBRUSH)GetStockObject(LTGRAY_BRUSH), NULL) ;

42return CWnd::Create(lpszClassName, lpszWindowName, dwStyle, rect, pParentWnd, nID, pContext);

43}

44////view类

45void CMySelfWndView::OnLButtonDown(UINT nFlags, CPoint point)

46{

47// TODO: Add your message handler code here and/or call default

48static CRect rect;

49 rect.SetRect(10,10,100,100);

50 myselfwnd=new MySelfWnd ;

51 myselfwnd->Create("non",NULL,WS_CHILDWINDOW | WS_VISIBLE, rect,this,456);

52 CView::OnLButtonDown(nFlags, point);

53}