CAggDirectDraw::NonDelegatingQueryInterface (Windows CE 5.0)
Retrieves an interface and increments the reference count.
HRESULT NonDelegatingQueryInterface(REFIIDriid,void**ppv);
Parameters
- riid
Reference identifier. - ppv
Pointer to the interface.
Return Values
Returns E_POINTER if ppv is invalid.
Returns NOERROR if the query is successful or E_NOINTERFACE if it is not.
Remarks
This member function provides an implementation of the INonDelegatingUnknown::NonDelegatingQueryInterface method.
By default it passes out references to IDirectDraw and then calls the CUnknown::NonDelegatingQueryInterface member function for base class interface references.
Override this class to return interfaces added in the derived class.
Requirements
DirectShow applications and DirectShow filters have different include file and link library requirements.
For more information, see Setting Up the Build Environment.
OS Versions: Windows CE 2.12 and later. Version 2.12 requires DXPAK 1.0 or later.
Header:
Send Feedback on this topic to the authors