本文实例讲述了CWnd窗口框架,分享给大家供大家参考。具体分析如下:
.h头文件代码如下:
#include <afxwin.h> class CMyApp:public CWinApp { public: virtual BOOL InitInstance(); }; //CMainWindow class CMainWindow:public CWnd { public: CMainWindow(); ~CMainWindow(); protected: afx_msg void OnNcDestroy( ); afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct); afx_msg void OnDestroy( ); DECLARE_MESSAGE_MAP() };
.cpp源文件代码如下:
#include "ReadBMP.h" #include "resource.h" CMyApp theApp; BOOL CMyApp::InitInstance() { m_pMainWnd = new CMainWindow; m_pMainWnd->ShowWindow(m_nCmdShow); return TRUE; //必须返回TRUE,否则不会进入消息循环,界面会直接退出 } //CMainWindow BEGIN_MESSAGE_MAP(CMainWindow, CWnd) ON_WM_CREATE() END_MESSAGE_MAP() //构造函数 CMainWindow::CMainWindow() { LPCTSTR lpszClassName = ::AfxRegisterWndClass(CS_HREDRAW|CS_VREDRAW, ::LoadCursorA(NULL, IDC_ARROW), (HBRUSH)(COLOR_3DFACE+1), theApp.LoadIcon(IDI_MAIN)); CreateEx(WS_EX_CLIENTEDGE, lpszClassName, "xxx", WS_OVERLAPPEDWINDOW, CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,NULL,NULL); } //析构函数 CMainWindow::~CMainWindow() { } //消息映射函数 int CMainWindow::OnCreate(LPCREATESTRUCT lpCreateStruct) { //OutputDebugString("oncreate"); //设置菜单 HMENU hMenu = ::LoadMenuA(theApp.m_hInstance, (LPCSTR)IDR_MENU); ::SetMenu(m_hWnd, hMenu); return 0; } void CMainWindow::OnNcDestroy( ) { delete this; } void CMainWindow::OnDestroy() { }
希望本文所述对大家的C++程序设计有所帮助。