CTransformOutputPin.CheckMediaType method

The CheckMediaType method determines if the pin accepts a specific media type.

Syntax


HRESULT CheckMediaType(
   const CMediaType *mtIn
);

Parameters

mtIn

Pointer to a CMediaType object that contains the proposed media type.

Return value

Returns an HRESULT value. Possible values include the following.

Return codeDescription
S_OK

Success.

E_INVALIDARG

The filter's input pin is not connected.

 

Remarks

This method implements the pure virtual CBasePin::CheckMediaType method. The method fails if the filter's input pin is not connected. Otherwise, it calls the filter's CTransformFilter::CheckTransform method, which is also pure virtual. The filter's derived class must implement CheckTransform, which determines if the proposed output media type is compatible with the input media type.

Requirements

Header

Transfrm.h (include Streams.h)

Library

Strmbase.lib (retail builds);
Strmbasd.lib (debug builds)

 

 

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