CBasePin::GetConnected
| Microsoft DirectShow 9.0 |
CBasePin::GetConnected
The GetConnected method retrieves the pin connected to this pin.
Syntax
IPin *GetConnected(void);
Return Value
Returns a pointer to the other pin's IPin interface.
Remarks
If the pin is not connected, this method returns NULL. Call the CBasePin::IsConnected method to determine whether the pin is connected.
The method does not call AddRef on the IPin interface, so the caller should not release the interface.
Example Code
Because the reference count is not incremented on the returned pointer, you can chain method calls together:
if (m_MyPin->IsConnected())
{
m_MyPin->GetConnected()->EndOfStream();
}
This coding pattern is very convenient; but as the example shows, you must be careful not to dereference a NULL pointer when the pin is unconnected.
Requirements
** Header:** Declared in Amfilter.h; include Streams.h.
** Library:** Use Strmbase.lib (retail builds) or Strmbasd.lib (debug builds).
See Also