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CAggDrawSurface::NonDelegatingQueryInterface (Windows Embedded CE 6.0)

1/6/2010

Retrieves an interface and increments the reference count.

Syntax

HRESULT NonDelegatingQueryInterface(
  REFIID riid,
  void** ppv
);

Parameters

  • riid
    Reference identifier.
  • ppv
    Pointer to the interface.

Return Value

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 IDirectDrawSurface 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

Windows Embedded CE Windows CE 2.12 and later
Note Microsoft DirectShow applications and DirectShow filters have different include file and Library requirements
For more information, see Setting Up the Build Environment, Version 2.12 requires DXPAK 1.0 or later

See Also

Reference

CAggDrawSurface Class