调用pView->Navigate2( strUrl )程序没响应？？

Question

代码如下：
void CWebFrame::OnNewAddr()
{
    ASSERT ( m_pViewMan );
    m_wndTabCtrl.Clear();
    m_pViewMan->RemoveAllView();    SendResetViewInfo();    DWORD dwViewID = GenerateViewID();
    CWebView *pView = m_pViewMan->AddView( dwViewID );
    if( pView && ::IsWindow( pView->GetSafeHwnd())){        CString strUrl;
        m_dlgwebToolBar.m_EditADD.GetWindowText( strUrl );        CString strText;
        g_lanManager.ReadTableString( IDS_CONTROL_WEBLOADING,strText );
        m_wndTabCtrl.AddItem(strText, dwViewID );
        m_wndTabCtrl.SetActiveViewByID( dwViewID );
        m_pViewMan->SetActiveView( dwViewID );        SendCreateViewInfo( dwViewID );
        SendActiveViewInfo( dwViewID );        pView->Navigate2( strUrl );
    }
调用这段代码，程序没响应。注释掉pView->Navigate2( strUrl )后，就没问题了。为什么？谢谢！！

Answer 1

OnBeforeNavigate2和OnNavigateComplete2方法如下：
void CWebView::OnBeforeNavigate2(LPCTSTR lpszURL, DWORD nFlags, LPCTSTR lpszTargetFrameName, CByteArray& baPostedData, LPCTSTR lpszHeaders, BOOL* pbCancel) 
{
    // TODO: Add your specialized code here and/or call the base class
    if( baPostedData.GetSize() > 0 ){
        m_BrowseContent.strUrl = lpszURL;
        m_BrowseContent.nFlags = nFlags;
        if( lpszTargetFrameName )
            m_BrowseContent.strTargetFrameName = lpszTargetFrameName;
        else
            m_BrowseContent.strTargetFrameName = _TEXT("");
        if( lpszHeaders )
            m_BrowseContent.strHeader = lpszHeaders;
        else
            m_BrowseContent.strHeader = _TEXT("");
        m_BrowseContent.arrByts.Copy( baPostedData );
    }
    
    MTR_WriteChatData( lpszURL, 4);
    SetSilent(TRUE);
    CHtmlView::OnBeforeNavigate2(lpszURL, nFlags,    lpszTargetFrameName, baPostedData, lpszHeaders, pbCancel);
}void CWebView::OnNavigateComplete2(LPCTSTR strURL) 
{
    // TODO: Add your specialized code here and/or call the base class
    CString strUrl = GetLocationURL();
    if( m_strOldUrl != strUrl ){        m_strOldUrl = strUrl;        if( m_strOldUrl == m_BrowseContent.strUrl ){            UINT unTotalLen = m_BrowseContent.strUrl.GetLength()+\
                m_BrowseContent.strHeader.GetLength()+\
                m_BrowseContent.strTargetFrameName.GetLength()+\
                m_BrowseContent.arrByts.GetSize();
            UINT unSize = sizeof(STRUCT_WEB_VIEWDATA)+unTotalLen;            PBYTE pbBuffer = new BYTE[unSize];
            if( pbBuffer ){
                STRUCT_WEB_VIEWDATA *pData = (STRUCT_WEB_VIEWDATA*)pbBuffer;
                pData->wTotalLen = (WORD)unTotalLen;
                pData->dwFlags = m_BrowseContent.nFlags;
                pData->wHeaderLen = m_BrowseContent.strHeader.GetLength();
                pData->wUrlLen = m_BrowseContent.strUrl.GetLength();
                pData->wTargetFrameNameLen = m_BrowseContent.strTargetFrameName.GetLength();
                pData->wPostDataLen = m_BrowseContent.arrByts.GetSize();
                
                PBYTE pbTemp = pbBuffer+sizeof(STRUCT_WEB_VIEWDATA);
                if( pData->wUrlLen > 0 ){
                    CopyMemory( pbTemp,m_BrowseContent.strUrl,pData->wUrlLen );
                    pbTemp += pData->wUrlLen;
                }
                if( pData->wTargetFrameNameLen > 0 ){
                    CopyMemory( pbTemp,m_BrowseContent.strTargetFrameName,pData->wTargetFrameNameLen );
                    pbTemp += pData->wTargetFrameNameLen;
                }
                if( pData->wHeaderLen > 0 ){
                    CopyMemory( pbTemp,m_BrowseContent.strHeader,pData->wHeaderLen );
                    pbTemp += pData->wHeaderLen;
                }
                if( pData->wPostDataLen > 0 ){
                    CopyMemory( pbTemp,m_BrowseContent.arrByts.GetData(),pData->wPostDataLen );
                }
                CWebFrame *pFrame = g_pMainFrm->m_pFrmHtml;
                if( pFrame && pFrame->IsKindOf( RUNTIME_CLASS(CWebFrame))){
                    pFrame->SendViewData( m_dwViewID,pbBuffer,unSize );    
                }                
                
                delete[] pbBuffer;
            }
        }else{            UINT unSize = sizeof(STRUCT_WEB_VIEWDATA)+m_strOldUrl.GetLength();
            PBYTE pbBuffer = new BYTE[ unSize ];
            if( pbBuffer ){
                STRUCT_WEB_VIEWDATA *pData = (STRUCT_WEB_VIEWDATA*)pbBuffer;
                pData->wTotalLen = (WORD)m_strOldUrl.GetLength();
                pData->dwFlags = 0;
                pData->wHeaderLen = 0;
                pData->wUrlLen = (WORD)m_strOldUrl.GetLength();
                pData->wTargetFrameNameLen = 0;
                pData->wPostDataLen = 0;                CopyMemory( pbBuffer+sizeof(STRUCT_WEB_VIEWDATA),m_strOldUrl,m_strOldUrl.GetLength() );                CWebFrame *pFrame = g_pMainFrm->m_pFrmHtml;
                if( pFrame && pFrame->IsKindOf( RUNTIME_CLASS(CWebFrame))){
                    pFrame->SendViewData( m_dwViewID,pbBuffer,unSize );    
                }                        delete[] pbBuffer;
            }
        }
    }        //禁止脚本错误
    LPDISPATCH        pDispDoc    = NULL;
    IHTMLDocument2    *pHTMLDoc    = NULL;
    IHTMLWindow2    *pWnd        = NULL;
    IHTMLWindow2    *pWndParent = NULL;
    try{
        pDispDoc = GetHtmlDocument();
        if (pDispDoc)
        {
            if (SUCCEEDED(pDispDoc->QueryInterface(IID_IHTMLDocument2, (void**)&pHTMLDoc))
                && pHTMLDoc != NULL
                && SUCCEEDED(pHTMLDoc->get_parentWindow(&pWnd))
                && pWnd != NULL
                && SUCCEEDED(pWnd->get_parent(&pWndParent))
                && pWndParent != NULL)
            {    
                _variant_t varFuc = CFunctionObject<CWebView>::CreateEventFunctionObject(
                    NULL,
                    NULL, 0);
                pWnd->put_onerror(varFuc);
                pWndParent->put_onerror(varFuc);
            }
        }
    }
    catch(...)
    {
        ASSERT(0);
    }
    try{
        SAFERELEASE(pWndParent);
        SAFERELEASE(pWnd);
        SAFERELEASE(pHTMLDoc);
        SAFERELEASE(pDispDoc);
    }
    catch(...)
    {
        ASSERT(0);
    }    CHtmlView::OnNavigateComplete2(strURL);    ModifyStyleEx (WS_EX_DLGMODALFRAME | WS_EX_CLIENTEDGE | WS_EX_STATICEDGE,
        0, SWP_FRAMECHANGED);
    SetWindowPos(NULL, 0, 0, 0, 0, SWP_FRAMECHANGED | SWP_NOZORDER
        | SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);
}

Answer 2

navigate后还需要put_Visible(VARIANT_TURE);才会显示

Answer 3

具体怎么put_Visible(VARIANT_TURE)？