CBasePin::QueryInternalConnections (Windows CE 5.0)
Provides an array of pointers to IPin objects. These are the pins that this pin internally connects to.
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 Values
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
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.
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