//头文件 #ifdef L_IMPL_OBJECTSAFETY BEGIN_INTERFACE_PART(ObjectSafety, IObjectSafety) STDMETHOD(GetInterfaceSafetyOptions)(REFIID riid, DWORD __RPC_FAR *pdwSupportedOptions, DWORD __RPC_FAR *pdwEnabledOptions); STDMETHOD(SetInterfaceSafetyOptions)(REFIID riid, DWORD dwOptionSetMask, DWORD dwEnabledOptions); END_INTERFACE_PART(ObjectSafety) DECLARE_INTERFACE_MAP(); #endif // L_IMPL_OBJECTSAFET//cpp文件 /////////////////////////////////// #ifdef L_IMPL_OBJECTSAFETY BEGIN_INTERFACE_MAP(CCurveChartCtrl, COleControl) INTERFACE_PART(CCurveChartCtrl, IID_IObjectSafety, ObjectSafety) END_INTERFACE_MAP() #endif // L_IMPL_OBJECTSAFETY#ifdef L_IMPL_OBJECTSAFETY // Implementation of IObjectSafety STDMETHODIMP CCurveChartCtrl::XObjectSafety::GetInterfaceSafetyOptions( REFIID riid, DWORD __RPC_FAR *pdwSupportedOptions, DWORD __RPC_FAR *pdwEnabledOptions) { METHOD_PROLOGUE_EX(CCurveChartCtrl, ObjectSafety) if (!pdwSupportedOptions || !pdwEnabledOptions) { return E_POINTER; } *pdwSupportedOptions = INTERFACESAFE_FOR_UNTRUSTED_CALLER | INTERFACESAFE_FOR_UNTRUSTED_DATA; *pdwEnabledOptions = 0; if (NULL == pThis->GetInterface(&riid)) { TRACE("Requested interface is not supported.\n"); return E_NOINTERFACE; } // What interface is being checked out anyhow? OLECHAR szGUID[39]; int i = StringFromGUID2(riid, szGUID, 39); if (riid == IID_IDispatch) { // Client wants to know if object is safe for scripting *pdwEnabledOptions = INTERFACESAFE_FOR_UNTRUSTED_CALLER; return S_OK; } else if (riid == IID_IPersistPropertyBag || riid == IID_IPersistStreamInit || riid == IID_IPersistStorage || riid == IID_IPersistMemory) { // Those are the persistence interfaces COleControl derived controls support // as indicated in AFXCTL.H // Client wants to know if object is safe for initializing from persistent data *pdwEnabledOptions = INTERFACESAFE_FOR_UNTRUSTED_DATA; return S_OK; } else { // Find out what interface this is, and decide what options to enable TRACE("We didn’t account for the safety of this interface, and it’s one we support...\n"); return E_NOINTERFACE; } } STDMETHODIMP CCurveChartCtrl::XObjectSafety::SetInterfaceSafetyOptions( REFIID riid, DWORD dwOptionSetMask, DWORD dwEnabledOptions) { METHOD_PROLOGUE_EX(CCurveChartCtrl, ObjectSafety) OLECHAR szGUID[39]; // What is this interface anyway? // We can do a quick lookup in the registry under HKEY_CLASSES_ROOT\Interface int i = StringFromGUID2(riid, szGUID, 39); if (0 == dwOptionSetMask && 0 == dwEnabledOptions) { // the control certainly supports NO requests through the specified interface // so it’s safe to return S_OK even if the interface isn’t supported. return S_OK; } // Do we support the specified interface? if (NULL == pThis->GetInterface(&riid)) { TRACE1("%s is not support.\n", szGUID); return E_FAIL; } if (riid == IID_IDispatch) { TRACE("Client asking if it’s safe to call through IDispatch.\n"); TRACE("In other words, is the control safe for scripting?\n"); if (INTERFACESAFE_FOR_UNTRUSTED_CALLER == dwOptionSetMask && INTERFACESAFE_FOR_UNTRUSTED_CALLER == dwEnabledOptions) { return S_OK; } else { return E_FAIL; } } else if ( riid == IID_IPersistPropertyBag || riid == IID_IPersistStreamInit || riid == IID_IPersistStorage || riid == IID_IPersistMemory ) { TRACE("Client asking if it’s safe to call through IPersist*.\n"); TRACE("In other words, is the control safe for initializing from persistent data?\n"); if (INTERFACESAFE_FOR_UNTRUSTED_DATA == dwOptionSetMask && INTERFACESAFE_FOR_UNTRUSTED_DATA == dwEnabledOptions) { return NOERROR; } else { return E_FAIL; } } else { TRACE1("We didn’t account for the safety of %s, and it’s one we support...\n", szGUID); return E_FAIL; } }
public IObjectSafetyImpl<CPolyCtl, INTERFACESAFE_FOR_UNTRUSTED_CALLER>
将下行添加到 .h 中的 COM 映射:
COM_INTERFACE_ENTRY(IObjectSafety)
即可
======================
如果要完全避免警告,可以去买个数字签名
好象是4700RMB一年
#ifdef L_IMPL_OBJECTSAFETY
BEGIN_INTERFACE_PART(ObjectSafety, IObjectSafety)
STDMETHOD(GetInterfaceSafetyOptions)(REFIID riid, DWORD __RPC_FAR *pdwSupportedOptions, DWORD __RPC_FAR *pdwEnabledOptions);
STDMETHOD(SetInterfaceSafetyOptions)(REFIID riid, DWORD dwOptionSetMask, DWORD dwEnabledOptions);
END_INTERFACE_PART(ObjectSafety)
DECLARE_INTERFACE_MAP();
#endif // L_IMPL_OBJECTSAFET//cpp文件
///////////////////////////////////
#ifdef L_IMPL_OBJECTSAFETY BEGIN_INTERFACE_MAP(CCurveChartCtrl, COleControl)
INTERFACE_PART(CCurveChartCtrl, IID_IObjectSafety, ObjectSafety)
END_INTERFACE_MAP() #endif // L_IMPL_OBJECTSAFETY#ifdef L_IMPL_OBJECTSAFETY
// Implementation of IObjectSafety
STDMETHODIMP CCurveChartCtrl::XObjectSafety::GetInterfaceSafetyOptions(
REFIID riid,
DWORD __RPC_FAR *pdwSupportedOptions,
DWORD __RPC_FAR *pdwEnabledOptions)
{
METHOD_PROLOGUE_EX(CCurveChartCtrl, ObjectSafety) if (!pdwSupportedOptions || !pdwEnabledOptions)
{
return E_POINTER;
} *pdwSupportedOptions = INTERFACESAFE_FOR_UNTRUSTED_CALLER | INTERFACESAFE_FOR_UNTRUSTED_DATA;
*pdwEnabledOptions = 0; if (NULL == pThis->GetInterface(&riid))
{
TRACE("Requested interface is not supported.\n");
return E_NOINTERFACE;
} // What interface is being checked out anyhow?
OLECHAR szGUID[39];
int i = StringFromGUID2(riid, szGUID, 39); if (riid == IID_IDispatch)
{
// Client wants to know if object is safe for scripting
*pdwEnabledOptions = INTERFACESAFE_FOR_UNTRUSTED_CALLER;
return S_OK;
}
else if (riid == IID_IPersistPropertyBag
|| riid == IID_IPersistStreamInit
|| riid == IID_IPersistStorage
|| riid == IID_IPersistMemory)
{
// Those are the persistence interfaces COleControl derived controls support
// as indicated in AFXCTL.H
// Client wants to know if object is safe for initializing from persistent data
*pdwEnabledOptions = INTERFACESAFE_FOR_UNTRUSTED_DATA;
return S_OK;
}
else
{
// Find out what interface this is, and decide what options to enable
TRACE("We didn’t account for the safety of this interface, and it’s one we support...\n");
return E_NOINTERFACE;
}
} STDMETHODIMP CCurveChartCtrl::XObjectSafety::SetInterfaceSafetyOptions(
REFIID riid,
DWORD dwOptionSetMask,
DWORD dwEnabledOptions)
{
METHOD_PROLOGUE_EX(CCurveChartCtrl, ObjectSafety) OLECHAR szGUID[39];
// What is this interface anyway?
// We can do a quick lookup in the registry under HKEY_CLASSES_ROOT\Interface
int i = StringFromGUID2(riid, szGUID, 39); if (0 == dwOptionSetMask && 0 == dwEnabledOptions)
{
// the control certainly supports NO requests through the specified interface
// so it’s safe to return S_OK even if the interface isn’t supported.
return S_OK;
} // Do we support the specified interface?
if (NULL == pThis->GetInterface(&riid))
{
TRACE1("%s is not support.\n", szGUID);
return E_FAIL;
}
if (riid == IID_IDispatch)
{
TRACE("Client asking if it’s safe to call through IDispatch.\n");
TRACE("In other words, is the control safe for scripting?\n");
if (INTERFACESAFE_FOR_UNTRUSTED_CALLER == dwOptionSetMask && INTERFACESAFE_FOR_UNTRUSTED_CALLER == dwEnabledOptions)
{
return S_OK;
}
else
{
return E_FAIL;
}
}
else if ( riid == IID_IPersistPropertyBag
|| riid == IID_IPersistStreamInit
|| riid == IID_IPersistStorage
|| riid == IID_IPersistMemory )
{
TRACE("Client asking if it’s safe to call through IPersist*.\n");
TRACE("In other words, is the control safe for initializing from persistent data?\n"); if (INTERFACESAFE_FOR_UNTRUSTED_DATA == dwOptionSetMask && INTERFACESAFE_FOR_UNTRUSTED_DATA == dwEnabledOptions)
{
return NOERROR;
}
else
{
return E_FAIL;
}
}
else
{
TRACE1("We didn’t account for the safety of %s, and it’s one we support...\n", szGUID);
return E_FAIL;
}
}