Deriving from CBasePin

Microsoft DirectShow 9.0

Deriving from CBasePin

To implement a pin using CBasePin, you must derive a new class from the base class and override several of its methods. You must override the following methods:

• CBasePin::CheckMediaType
• CBasePin::GetMediaType

You will probably need to override these additional methods:

• CBasePin::Active
• CBasePin::BreakConnect
• CBasePin::CheckConnect
• CBasePin::CompleteConnect
• CBasePin::EndOfStream
• CBasePin::Inactive
• CBasePin::Notify
• CBasePin::Run

Finally, you must must implement the IPin::BeginFlush and IPin::EndFlush methods.

Some of these methods are implemented in base classes that derive from CBasePin, such as CBaseInputPin and CBaseOutputPin.