Share via


CBasePin::QueryInternalConnections (Windows Embedded CE 6.0)

1/6/2010

Provides an array of pointers to IPin objects. These are the pins that this pin internally connects to.

Syntax

HRESULT QueryInternalConnections(
  IPin** apPin,
  ULONG* nPin
);

Parameters

  • apPin
    Array of IPin pointers.
  • nPin
    Upon input, indicates the number of channels; upon output, indicates the number of pins.

Return Value

Returns one of the following HRESULT values.

Value Description

E_FAIL

Undetermined failure.

E_NOTIMPL

The filter graph manager interprets E_NOTIMPL as meaning all input pins connect to all output pins.

S_FALSE

Insufficient number of channels; returns no pins in apPin.

Remarks

This member function implements the IPin::QueryInternalConnections method but only to return E_NOTIMPL.

To provide mapping between specific input and output pins, override this.

The default implementation to return E_NOTIMPL implies that the caller can assume that all input pins feed all output pins.

Overriding this member function allows a filter to specify when it is a renderer for some of its input pins and not for others.

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

CBasePin Class