CEnumMediaTypes::QueryInterface

A version of this page is also available for

Windows Embedded CE 6.0 R3

4/8/2010

Retrieves a pointer to a specified interface on a component to which a client currently holds an interface pointer.

Syntax

HRESULT QueryInterface(
  REFIID iid,
  void** ppvObject 
);

Parameters

• iid
  Specifies the IID of the interface being requested.

• ppvObject
  Receives a pointer to an interface pointer to the object on return.

  If the interface specified in iid is not supported by the object, ppvObject is set to NULL.

Return Value

Returns S_OK if the interface is supported, S_FALSE if not.

Remarks

This member function implements the IUnknown::QueryInterface method and passes out references to the IEnumMediaTypes interface.

Override this class to return other interfaces on the object in the derived class.

Requirements