WhyCan Forum(哇酷开发者社区)

#include "stdafx.h"
#include <afxwin.h>

class FirstApp : public CWinApp
{
	virtual BOOL InitInstance()
	{
		CFrameWnd* window = new CFrameWnd();
		m_pMainWnd = window;
		window->Create(NULL, _TEXT("第一个 MFC 应用程序."));
		window->ShowWindow(m_nCmdShow);

		return TRUE;
	}
};

FirstApp theApp;

#include "stdafx.h"
#include <afxwin.h>

class FirstFrame : public CFrameWnd
{
public:
	FirstFrame()
	{
	}

	DECLARE_MESSAGE_MAP();
	afx_msg void OnLButtonDown(UINT, CPoint)
	{
		MessageBox(_TEXT("对话框内容"), _TEXT("标题"), 0);
	}

	afx_msg void OnPaint()
	{
		CPaintDC dc(this);
		LineTo(dc, 100, 200);
		LineTo(dc, 200, 300);
		LineTo(dc, 0, 0);
	}
};

BEGIN_MESSAGE_MAP(FirstFrame, CFrameWnd)
	ON_WM_LBUTTONDOWN()
	ON_WM_PAINT()
END_MESSAGE_MAP()

class FirstApp : public CWinApp
{
	virtual BOOL InitInstance()
	{
		FirstFrame* window = new FirstFrame();
		m_pMainWnd = window;
		window->Create(NULL, _TEXT("第一个 MFC 应用程序."));
		window->ShowWindow(m_nCmdShow);

		return TRUE;
	}
};

FirstApp theApp;