MFC源码解读（一）最原始一个MFC程序，手写不用向导

从这一篇开始，详细记录一下MFC的源码解读

四个文件，分别为：

stdafx.h，stdafx.cpp，hello.h，hello.cpp

代码如下：

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

//stdafx.cpp
#include "stdafx.h"

//hello.h
class CMyWinApp:public CWinApp
{
public:
BOOL InitInstance();
};
class CMyFrameWnd:public CFrameWnd
{
public:
    CMyFrameWnd();
};

//hello.cpp
#include "stdafx.h"
#include "hello.h"

CMyWinApp theApp;

BOOL CMyWinApp::InitInstance()
{
    m_pMainWnd=new CMyFrameWnd();
    m_pMainWnd->ShowWindow(m_nCmdShow);
    m_pMainWnd->UpdateWindow();
    return TRUE;
}
CMyFrameWnd::CMyFrameWnd()
{
    Create(NULL,"Hello MFC",WS_OVERLAPPEDWINDOW|WS_VSCROLL,CRect(40,60,900,300),NULL,"MainMenu");
}