版权声明:转载请注明出处: https://blog.csdn.net/qq_33757398/article/details/82286220
1.MyApp.h文件
#pragma once
#define _WIN32_WINNT 0x0502
#include <afxwin.h>
class CMyApp :public CWinApp
{
public:
virtual BOOL InitInstance();
};
class CMainWindow :public CFrameWnd
{
public:
CMainWindow();
protected:
afx_msg void OnPaint();
afx_msg void OnLButtonDown(UINT nFlags, CPoint point);
DECLARE_MESSAGE_MAP();
};
2.MyApp.cpp文件
#include "MyApp.h"
BOOL CMyApp::InitInstance()
{
this->m_pMainWnd = new CMainWindow();
this->m_pMainWnd->ShowWindow(this->m_nCmdShow);
this->m_pMainWnd->UpdateWindow();
return true;
}
BEGIN_MESSAGE_MAP(CMainWindow,CFrameWnd)
ON_WM_PAINT()
ON_WM_LBUTTONDOWN()
END_MESSAGE_MAP()
CMainWindow::CMainWindow()
{
this->Create(NULL, TEXT("MessageMap"),//_T is also ok
WS_OVERLAPPEDWINDOW | WS_VSCROLL,
CRect(100,100,680,300));//控制窗口大小,起始位置到结束位置
}
void CMainWindow::OnPaint()//处理绘制消息,Paint消息
{
CPaintDC dc(this);
//dc.Ellipse(100, 100, 200, 300);//绘制一个椭圆
CRect rect;
this->GetClientRect(&rect);
dc.DrawText(TEXT("Hello, MFC!"), -1, &rect,
DT_SINGLELINE | DT_CENTER | DT_VCENTER);
}
void CMainWindow::OnLButtonDown(UINT nFlags, CPoint point)
{
this->MessageBox(TEXT("The left mouse button is pressed!"));
}
messageMap.cpp
#include "MyApp.h"
CMyApp app;