本文共 6089 字，大约阅读时间需要 20 分钟。
执行script:
IHTMLDocument2 *pHTMLDocument=NULL; if (!(pHTMLDocument = (IHTMLDocument2*)m_Ie.get_Document())) //获取 IHTMLDocument2 的接口指针 return ; CString sScript = L "window.open(\'http://www.126.com/\',\'wwww\')" ; //设置要调用的javascript函数 CString Type = L "javascript" ; //设置调用的脚本类型 IHTMLWindow2 *m_pHtmlWindow=NULL; pHTMLDocument->get_parentWindow(&m_pHtmlWindow); //得到子框架 VARIANT ret; ret.vt = VT_EMPTY; BSTR bstr = sScript.AllocSysString(); BSTR btype = Type.AllocSysString (); m_pHtmlWindow->execScript(bstr,btype , &ret); //执行要调用的脚本函数。 ::SysFreeString(bstr); ::SysFreeString(btype); CComPtr<IHTMLDocument3> pHtmlDoc3;
pDoc2->QueryInterface(IID_IHTMLDocument3, (void**)&pHtmlDoc3); CComPtr<IHTMLElement> pElemPay; if (!m_csControlID.IsEmpty()) { pHtmlDoc3->getElementById(_bstr_t(m_csControlID), &pElemPay); } 获取frame及其doc2：IHTMLFramesCollection2 *pFramesCollection2 = NULL;
hr = pIHTMLDocument2->get_frames(&pFramesCollection2);//取得框架frame的集合 long nFrameCount = 0; hr = pFramesCollection2->get_length(&nFrameCount); //取得子框架个数 for (long i = 0; i<nFrameCount; i++) { CComVariant vDispWin2;//取得子框架的自动化接口 hr = pFramesCollection2->item(&CComVariant(i), &vDispWin2); IHTMLWindow2 *pWin2 = NULL; hr = vDispWin2.pdispVal->QueryInterface(IID_IHTMLWindow2, (void **)&pWin2); IHTMLDocument2 *pDoc2 = NULL; hr = pWin2->get_document(&pDoc2);//取得字框架的 IHTMLDocument2 接口 }获取doc2:
方法1：
UINT nMsg = ::RegisterWindowMessage(_T("WM_HTML_GETOBJECT"));
LRESULT lRes; ::SendMessageTimeout(hWnd, nMsg, 0L, 0L, SMTO_ABORTIFHUNG, 1000, (PDWORD_PTR)&lRes); if (!lRes) { Log(L"SendMessageTimeout Get lRes is fail\n"); return false; } IHTMLDocument2 *spDoc = NULL; HRESULT hr = ::ObjectFromLresult(lRes, IID_IHTMLDocument2, 0, (void **)&spDoc);//如果某控件不支持MSAA特性，此函数调用会失败。方法2：
HRESULT hr = CoCreateInstance(CLSID_ShellWindows, NULL, CLSCTX_ALL, IID_IShellWindows, (void**)&m_spShellWin);
m_spShellWin->get_Count(&m_nIECount); for (int i = 0; i<m_nIECount; i++) { IDispatch *spDispIE = NULL; VARIANT v; v.vt = VT_I4; v.lVal = i; hr = m_spShellWin->Item(v, &spDispIE); VariantClear(&v); IWebBrowser2 *spBrowser = NULL; hr = spDispIE->QueryInterface(IID_IWebBrowser2, (void**)&spBrowser); IDispatch *spDispDoc = NULL; hr = spBrowser->get_Document(&spDispDoc); IHTMLDocument2 *spDocument2 = NULL; hr = spDispDoc->QueryInterface(IID_IHTMLDocument2,(void**)&spDocument2);}
绑定连接点：
CComPtr<IHTMLWindow2> pHTMLWindow2=NULL;
hr=pHTMLDocument2->get_parentWindow ((IHTMLWindow2**)&pHTMLWindow2); CComPtr<IServiceProvider>spServiceProv=NULL; hr=pHTMLWindow2->QueryInterface (IID_IServiceProvider,(void**)&spServiceProv); CComPtr<IWebBrowser2> pWebBrowser2=NULL; hr = spServiceProv->QueryService(SID_SWebBrowserApp,IID_IWebBrowser2,(void**)&pWebBrowser2); CComPtr<IConnectionPointContainer> pCPC; pWebBrowser2->QueryInterface(IID_IConnectionPointContainer,(void**)&pCPC); pCPC->FindConnectionPoint( DIID_DWebBrowserEvents2,&m_pCP); hr=m_pCP->Advise( (IUnknown*)(void*)m_pEventListener,&m_dwCookie);m_PEventListener:
class IEEvent :
public HTMLDocumentEvents //IDispatch { public: IEEvent(void); ~IEEvent(void); public: HRESULT STDMETHODCALLTYPE QueryInterface(const struct _GUID &iid,void ** ppv){
if(iid==IID_IUnknown) *ppv=static_cast <IUnknown *>(this); else { if(iid==IID_IDispatch) *ppv=static_cast <IDispatch *>(this); else return E_NOINTERFACE; } return S_OK; } ULONG STDMETHODCALLTYPE AddRef(void) { return 1; } ULONG STDMETHODCALLTYPE Release(void) { return 0; } HRESULT STDMETHODCALLTYPE GetTypeInfoCount( /* [out] */ UINT *pctinfo) ; HRESULT STDMETHODCALLTYPE GetTypeInfo( /* [in] */ UINT iTInfo, /* [in] */ LCID lcid, /* [out] */ ITypeInfo **ppTInfo); HRESULT STDMETHODCALLTYPE GetIDsOfNames( /* [in] */ REFIID riid, /* [size_is][in] */ LPOLESTR *rgszNames, /* [in] */ UINT cNames, /* [in] */ LCID lcid, /* [size_is][out] */ DISPID *rgDispId) ; HRESULT STDMETHODCALLTYPE Invoke( /* [in] */ DISPID dispIdMember, /* [in] */ REFIID riid, /* [in] */ LCID lcid, /* [in] */ WORD wFlags, /* [out][in] */ DISPPARAMS *pDispParams, /* [out] */ VARIANT *pVarResult, /* [out] */ EXCEPINFO *pExcepInfo, /* [out] */ UINT *puArgErr) ; };cpp:
IEEvent::IEEvent(void)
{ } IEEvent::~IEEvent(void) { } ///实现IDispatch接口 HRESULT IEEvent::GetTypeInfoCount( /* [out] */ UINT *pctinfo) { return E_NOTIMPL; } HRESULT IEEvent::GetTypeInfo( /* [in] */ UINT iTInfo, /* [in] */ LCID lcid, /* [out] */ ITypeInfo **ppTInfo) { return E_NOTIMPL; } HRESULT IEEvent::GetIDsOfNames( /* [in] */ REFIID riid, /* [size_is][in] */ LPOLESTR *rgszNames, /* [in] */ UINT cNames, /* [in] */ LCID lcid, /* [size_is][out] */ DISPID *rgDispId) { return E_NOTIMPL; } HRESULT IEEvent::Invoke( /* [in] */ DISPID dispIdMember, /* [in] */ REFIID riid, /* [in] */ LCID lcid, /* [in] */ WORD wFlags, /* [out][in] */ DISPPARAMS *pDispParams, /* [out] */ VARIANT *pVarResult, /* [out] */ EXCEPINFO *pExcepInfo, /* [out] */ UINT *puArgErr) { HRESULT hr = S_OK; #ifdef DEBUG char szDisp[MAX_PATH]; sprintf(szDisp,"dispIdMember=%d\n",dispIdMember); TRACE(szDisp); #endif return hr; }添加连接点后，需要在线程中添加消息循环，防止IE卡死。通过Unadvise卸载连接点。
有如下HTML，如何用程序触发点击按钮呢？
首先看JS的写法
把这段在翻译到C++里面就是：
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