学步园

.h文件中：

DECLARE_EVENTSINK_MAP()

void XOnBeforeNavigate2(LPDISPATCH pDisp,        

			VARIANT FAR* URL,        

			VARIANT FAR* Flags,        

			VARIANT FAR* TargetFrameName,        

			VARIANT FAR* PostData,        

			VARIANT FAR* Headers,        

			BOOL FAR* Cancel);

.cpp文件中：

BEGIN_EVENTSINK_MAP(CTestHtml, CDHtmlDialog) 

	ON_EVENT(CTestHtml, AFX_IDC_BROWSER, 250 , XOnBeforeNavigate2,\  	

	VTS_DISPATCH VTS_PVARIANT VTS_PVARIANT VTS_PVARIANT VTS_PVARIANT VTS_PVARIANT VTS_PBOOL)

END_EVENTSINK_MAP()

void CTestHtml::XOnBeforeNavigate2(LPDISPATCH pDisp,              

				VARIANT FAR* URL,              

				VARIANT FAR* Flags,              

				VARIANT FAR* TargetFrameName,              

				VARIANT FAR* PostData,              

				VARIANT FAR* Headers,              

				BOOL FAR* Cancel)

{ 

	CString unicodeUrl(V_BSTR(URL)); 

	if (unicodeUrl.Left(2).Right(1) == _T(":")) 

  		*Cancel = TRUE;//阻止显示当前页面 

	else 

  		OnBeforeNavigate(pDisp, unicodeUrl);//正常显示当前页面 

}

重载OnBeforeNavigate，直接return，不行！