duilib消息

先注册：

bool CWindowWnd::RegisterWindowClass()

{
    WNDCLASS wc = { 0 };
    wc.style = GetClassStyle();
    wc.cbClsExtra = 0;
    wc.cbWndExtra = 0;
    wc.hIcon = NULL;
    wc.lpfnWndProc = CWindowWnd::__WndProc;
    wc.hInstance = CPaintManagerUI::GetInstance();
    wc.hCursor = ::LoadCursor(NULL, IDC_ARROW);
    wc.hbrBackground = NULL;
    wc.lpszMenuName  = NULL;
    wc.lpszClassName = GetWindowClassName();
    ATOM ret = ::RegisterClass(&wc);
    ASSERT(ret!=NULL || ::GetLastError()==ERROR_CLASS_ALREADY_EXISTS);
    return ret != NULL || ::GetLastError() == ERROR_CLASS_ALREADY_EXISTS;

}

    if( GetSuperClassName() != NULL && !RegisterSuperclass() ) return NULL;
    if( GetSuperClassName() == NULL && !RegisterWindowClass() ) return NULL;
    m_hWnd = ::CreateWindowEx(dwExStyle, GetWindowClassName(), pstrName, dwStyle, x, y, cx, cy, hwndParent, hMenu, CPaintManagerUI::GetInstance(), this);
    ASSERT(m_hWnd!=NULL);
    return m_hWnd;

 

LRESULT CALLBACK CWindowWnd::__WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
    CWindowWnd* pThis = NULL;
    if( uMsg == WM_NCCREATE ) { //先创建非客户区
        LPCREATESTRUCT lpcs = reinterpret_cast<LPCREATESTRUCT>(lParam);
        pThis = static_cast<CWindowWnd*>(lpcs->lpCreateParams);
        pThis->m_hWnd = hWnd;
        ::SetWindowLongPtr(hWnd, GWLP_USERDATA, reinterpret_cast<LPARAM>(pThis));
    } 
    else {            //后创建客户区
        pThis = reinterpret_cast<CWindowWnd*>(::GetWindowLongPtr(hWnd, GWLP_USERDATA));
        if( uMsg == WM_NCDESTROY && pThis != NULL ) {
            LRESULT lRes = ::CallWindowProc(pThis->m_OldWndProc, hWnd, uMsg, wParam, lParam);
            ::SetWindowLongPtr(pThis->m_hWnd, GWLP_USERDATA, 0L);
            if( pThis->m_bSubclassed ) pThis->Unsubclass();
            pThis->m_hWnd = NULL;
            pThis->OnFinalMessage(hWnd);
            return lRes;
        }
    }
    if( pThis != NULL ) {
        return pThis->HandleMessage(uMsg, wParam, lParam);
    } 
    else {
        return ::DefWindowProc(hWnd, uMsg, wParam, lParam);
    }
}