Question

我在Windows XP上运行来自c ++的com脚本通常脚本执行没有问题，但有时执行失败，并且使用了hresult DISP_E_MEMBERNOTFOUND。（调用是失败的功能）
有人知道为什么会这样吗？代码在

之下

CLSID clsid;   
MULTI_QI mqi;  
HRESULT hr ;  

mqi.hr = 0;  
mqi.pIID = &IID_IDispatch;  
mqi.pItf = NULL;  
hr = CLSIDFromProgID(T2W(progId.c_str()), &clsid);  
CHECK_HRESULT(hr);        

hr = CoCreateInstanceEx(clsid, NULL, CLSCTX_INPROC_SERVER, NULL, 1, &mqi);  
CHECK_HRESULT(hr);        

tMethodArguments argTemp(arguments.size()) ;  
USES_CONVERSION ;  
HRESULT hr;  
DISPID index ;  
OLECHAR FAR*  szMember = T2W(method.c_str());   
unsigned int err ;  

hr = m_pScriptComObj->GetIDsOfNames( IID_NULL, &szMember, 1, LOCALE_SYSTEM_DEFAULT, &index ) ;  
CHECK_HRESULT(hr);  

DISPPARAMS  params ;  
params.rgvarg = pArgs ;  
params.rgdispidNamedArgs = NULL ;  
params.cArgs        = arguments.size() ;  
params.cNamedArgs   = 0 ;  

EXCEPINFO excep_info;  

hr = m_pScriptComObj->Invoke(index,
                  IID_NULL,
                  LOCALE_SYSTEM_DEFAULT,
                  DISPATCH_METHOD,
                  &params,
                  &res,
                  &excep_info,
                  &err);

我省略了方法和参数初始化

INVOKE调用的vbscript看起来像这样

<?xml version="1.0"?>
<component id="script_wsc_script">

<?component?>

<registration
    description="script_wsc_script"
    progid="wscScript.WSC"
    version="1.00"
    classid="{A1C14070-EBAB-41A0-BC9C-B4330A73437D}"
    remotable="true"
>
</registration>
<public>

    <method name="PrintMessage">
        <PARAMETER name="first"/>
        <PARAMETER name="second"/>

    </method>
</public>

<script language="VBScript">
<![CDATA[

Function PrintMessage ( first, second)

''do something
End Function

COM脚本激活有时会失败

0 个答案: