IInternalUnknown::QueryInternalInterface method (objidl.h)
Retrieves pointers to the supported internal interfaces on an object.
Syntax
HRESULT QueryInternalInterface(
[in] REFIID riid,
[out] void **ppv
);
Parameters
[in] riid
The identifier of the internal interface being requested.
[out] ppv
The address of a pointer variable that receives the interface pointer requested in the riid parameter. Upon successful return, *ppv contains the requested interface pointer to the object. If the object does not support the interface, *ppv is set to NULL.
Return value
This method returns S_OK if the interface is supported, and E_NOINTERFACE otherwise.
Remarks
This method is similar to the IUnknown::QueryInterface method, except that the COM proxy manager, when aggregated, will not expose some interfaces through QueryInterface. Instead, those internal interfaces must be exposed through QueryInternalInterface.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 2000 Professional [desktop apps only] |
| Minimum supported server | Windows 2000 Server [desktop apps only] |
| Target Platform | Windows |
| Header | objidl.h (include ObjIdl.h) |