WTL第一个窗口

#include <iostream>
#include<atlbase.h>
#include<atlwin.h>
#include"resource.h"

//窗口样式
typedef CWinTraits<WS_OVERLAPPEDWINDOW | WS_CLIPCHILDREN, WS_EX_APPWINDOW> MyTrais;

class MyWindow :
    public CWindowImpl<MyWindow,CWindow,MyTrais>
{
public:
    DECLARE_WND_CLASS(_T("My Class"));

    BEGIN_MSG_MAP(MyWindow)
        MESSAGE_HANDLER(WM_CLOSE,OnClose)
        MESSAGE_HANDLER(WM_DESTROY,OnDestroy)
        COMMAND_ID_HANDLER(IDR_ABOUT,OnAbout)
    END_MSG_MAP()

    LRESULT OnClose(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL bHandled)
    {
        DestroyWindow();
        return 0;
    }
    LRESULT OnDestroy(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL bHandled)
    {
        PostQuitMessage(0);
        return 0;
    }
    LRESULT OnAbout(UINT wNotifyCode, WORD wID, HWND hWndCtrl, BOOL& bHandled)
    {
        OutputDebugString(_T("OnAbou called!\r\n"));
        return 0;
    }

};

CComModule gModule;

int main()
{
    HRESULT hRes = gModule.Init(NULL, GetModuleHandle(NULL));
    if (hRes != 0)
    {
        std::cout << hRes << std::endl;
    }
    MyWindow win;

    HWND hWnd = win.Create(NULL, CWindow::rcDefault, _T("MyWindow!"));
    if (hWnd == NULL)
    {
        std::cout << "create window failed\r\n";
    }
    win.ShowWindow(SW_SHOW);
    win.UpdateWindow();
    MSG msg;
    while (GetMessage(&msg, NULL, 0, 0) > 0)
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);



    }
    gModule.Term();
}