我用SOAPToolKit作的东西怎么也不好用,详情见内:(我怎么从来没有见到有微软专家回答问题?这是微软专区吗?)救救我吧!
一个组件的接口有一个方法
GetName([out,string]BSTR* bstrName);
用的是HighLevel的方式调用:
链接函数:
bool CDispatchsamplePlay0Dlg::Connect()
{
HRESULT hr;
UpdateData();
CoInitialize(0);
if(m_WSDLConnected != m_WSDLstring)
{
if (m_pSoapClient != NULL) m_pSoapClient.Release();
hr = m_pSoapClient.CreateInstance(__uuidof(SoapClient));
if(FAILED(hr))
{
DisplayHResult(_T("Cannot create SoapClient."), hr);
return false;
}
try
{
m_pSoapClient->mssoapinit((LPCTSTR)m_WSDLstring, _T(""), _T(""), _T(""));
}
catch(_com_error err)
{
DisplayFault(_T("Cannot initialize SoapClient. "));
return false;
}
m_WSDLConnected = m_WSDLstring;
}
return true;
}
使用的地方:
……
……
if(Connect())
{
// HRESULT hr;
DISPID dispid;
CString ParamText;
// EXCEPINFO ExceptInfo;
VARIANTARG params;
VariantInit(¶ms);
// Get dispatch ID corrisponding to method name.
hr = m_pSoapClient->GetIDsOfNames(IID_NULL, &pMethodName, 1, LOCALE_SYSTEM_DEFAULT, &dispid);
if(FAILED(hr))
{
DisplayHResult(_T("Cannot get dispatch id of calc method."), hr);
return;
}
DISPPARAMS dispparams;
dispparams.cArgs = 0;
dispparams.cNamedArgs = 0;
dispparams.rgdispidNamedArgs = NULL;
dispparams.rgvarg = NULL;
// Invoke the specified method.
hr = m_pSoapClient->Invoke(dispid, IID_NULL, LOCALE_SYSTEM_DEFAULT,
DISPATCH_METHOD, &dispparams,¶ms,NULL,NULL);
if(FAILED(hr))
{
DisplayFault(_T("Invoke of calc method failed."));
}
else
{
MessageBox("Initialize success!");
}
}
……
……
错误提示:0x80070057——参数错误
我对Invoke调用不了解,救救我吧。