一个菜鸟级错误，在线等

[lonelystar777]

以下的代码是用开发一个类似于网络实名这样的IE插件：
case DISPID_BEFORENAVIGATE2:

{

//CComBSTR url = ((*pDispParams).rgvarg)[5].pvarVal->bstrVal;
char * strurl;
if (pDispParams->cArgs >= 5 && pDispParams->rgvarg[5].vt == (VT_BYREF|VT_VARIANT))
{
CComVariant varURL(*pDispParams->rgvarg[5].pvarVal);
varURL.ChangeType(VT_BSTR);
strurl = OLE2A(varURL.bstrVal);
}

if (strstr(strurl, "软件"))

{

CComPtr<IWebBrowser2> spBrowser;

CComPtr<IDispatch> spDisp = ((*pDispParams).rgvarg)[6].pdispVal;

spDisp->QueryInterface(IID_IWebBrowser2, (void**)&spBrowser);

spBrowser->Stop();

CComBSTR newURL = L"http://www.csdn.com";

pDispParams->rgvarg[4]= pDispParams->rgvarg[4] & (~navAllowAutosearch );

spBrowser->Navigate(newURL, &pDispParams->rgvarg[4],&pDispParams->rgvarg[3],
&pDispParams->rgvarg[2],&pDispParams->rgvarg[1]);

((*pDispParams).rgvarg)[0].boolVal = TRUE;



}

break;

}
编译时提示binary '&' : 'struct tagVARIANT' does not define this operator or a conversion to a type acceptable to the predefined operator的错误
是在pDispParams->rgvarg[4]= pDispParams->rgvarg[4] & (~navAllowAutosearch );这句上，
请问这怎么解决？

[xqk]

up

[zx_sanjin]

tagVARIANT没有重载&操作符。你要先知道pDispParams->rgvarg[4]是什么类型，再做处理：
如果是LONG型，可
pDispParams->rgvarg[4].lVal = pDispParams->rgvarg[4].lVal & (~navAllowAutosearch );